mycorrhizal production
TRANSCRIPT
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1
INNOVATIVE MYCORRHIZA PRODUCTION
2.12.2014
Local Organizers:
Carolin Schneider, Imke Hutter and Louis Mercy INOQ GmbH, Solkau 2, 29465 Schnega, GERMANY Amaia Nogales University of Évora, Nucleo da Mitra, Apartado 94 7002-554 Évora, PORTUGAL
Co-organized by: Meeting venue:
Josef V. Herrmann Head “Microbial Symbiosis” , German Phytomedical Society (DPG) Bayerische Landesanstalt für Weinbau und Gartenbau Fachzentrum Analytik An der Steige 15 - 97209 Veitshöchheim, GERMANY Seminarhof Proitzer Mühle D- 29465 Schnega, GERMANY
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MINUTES FROM THE WORKSHOP “INNOVATIVE MYCORRHIZA PRODUCTION”
24 participants attended the workshop organized by Inoq GmbH, co-organized by “Microbial Symbiosis”,
German Phytomedical Society (DPG) in the frame of Marie Curie Action "Industry-Academia
Partnerships and Pathways" project AGRO-AMF-AOX.
In the morning session Dr Carolin Schneider welcomed the attendants and presented the program of
the day. Afterwards she introduced INOQ GmbH: when and how it was created, products, objectives and
research projects. Among them, she gave special emphasis on an Industry-Academia Partnership and
Pathways Project running in cooperation with the University of Évora. Carolin Schneider showed the
objectives of the project (developing a molecular marker based on alternative oxidase gene sequences
on arbuscular mycorrhizal fungi -AMF- for functional mycorrhiza establishment) and the main outcomes
that have been obtained on it e.g. the installation of a laboratory of molecular biology at INOQ GmbH,
the establishment of a protocol for the in vitro production/propagation of arbuscular mycorrhizal fungi
and the isolation of alternative oxidase genes in Rhizophagus irregularis.
Imke Hutter gave her presentation on mycorrhiza and microbial products with an overview on the
market, products and legislation. She showed the number of companies producing mycorrhizal inoculum
(the market study was based only on companies with webpage), how they presented their products and
the information that they gave about them, including the amount of propagules and dosage. She
highlighted a high variability among the different companies in all topics.
Imke Hutter explained as well that microbial products could be registered in the market in three
different categories: as bioprotectants, as biofertilizers or as bioestimulants, depending on their
intended use. For AMF they are registered in Germany under the Fertilizer act, but f. e. the EU does only
regulate mineral fertilizers so far. Legislation, entities that regulate them and the process of release of
the products to the market are different depending on the category where mycorrhizal products are
included in EU countries At the moment the EU deals with new definitions to regulate microbial
products according to either their mode of action or their intended use.
Louis Mercy showed in his presentation some of the problems that mycorrhizal inoculum manufacturers
and customers face, and made special emphasis on the fact that quality and effectiveness are not
always guaranteed in the products. Definition of quality in those products is still controversial: is it the
richness of the inoculum (number of spores or propagules)? Is it based on the tests of most probable
number (MPN)? He stated that quality could be also based on the capacity of the inoculum to
induce/elicitate the plant to establish mycorrhizal symbiosis. However, this is greatly affected by the
phosphorous content of the soil.
Louis Mercy presented how mycorrhizal inoculum is produced at INOQ GmbH (in vitro and ex vitro) and
compared and discussed results of different applications.He showed also the results of some
experiments where different elicitors were applied both in leaves and in the substrate/soil and where
increased mycorrhizal colonization rates and spore production was obtained.
The last talk in the morning session was from Dr Karin Hage-Ahmed who presented the work done
during her post-doc in the University of Natural Resources and Life Sciences of Vienna. The topic was on
arbuscular mycorrhiza as a biocontrol method for Fusarium sp. In her work she developed a system for
tomato in a intercropping setting to study the effect of AMF on Fusarium wilt disease. In this system,
tomato plants grew in association with other species such as leek, cucumber, basil and fennel. She
showed that the severity of Fusarium wilt symptoms in mycorrhizal tomatoes depended on the
intercropping partner. Using this system with cucumber as a intercropping partner, she also showed
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changes on root exudates when plants were in the presence of Fusarium, AMF or both at the same time.
To conclude, she hypothesized that weeds might also change the response of mycorrhizal plants to
different soil conditions.
After the presentation the efficiency of methods to control soil borne diseases in the field was
discussed. The system that Karin Hage-Ahmed developed was highlighted as useful to test the efficiency
of AMF to control soil borne pathogens.
Round table discussion was opened by Mira Schaefer from Niedersächsische Rasenkulturen (NIRA)
GmbH & Co. KG. She presented her company and the results that they obtained using AMF inoculum for
Sedum mats production. They tested several methods to apply the inoculum (spreading it or mixing it
with the substrate). There were not differences between both methods, and in both cases good results
were obtained: mycorrhizal Sedum plants grew in higher density than the non-mycorrhizal ones. Weeds
grew as well between the sedum mats, this was overcome by reduced irrigation (Sedum plants
withstand drought while weeds do not).
Dr Ingrid Weissenhorn from Servaplant B.V. presented as well her company, which gives consultancy
services to farmers that want to switch to more sustainable agriculture and provides methods and
products for this (including mycorrhizal inoculum).
She showed several cases where they recommended to use mycorrhiza and it did not gave expected
results. This aimed to encourage the discussion about the effectiveness of mycorrhizal inocula in the
round table: is it useful under very artificial conditions? Combination of mycorrhiza with other
microorganisms would contribute to obtain better results?
Michael Cordts presented his results using mycorrhizal inoculum in the fields of his farm(Bioland-
Betrieb), which made the transition to organic farming 4 years ago. He cultivates maize, soy bean and
potatoes mainly. He presented his needs and what he would like to obtain from mycorrhiza in his fields
(compatibility with his farming methods in sandy soils, stress situations, pathogens etc.)
Discussion of the round table after the short presentations was on the following topics:
- Prices for an effective inoculation are not necessarily the same as the prices of the inoculum itself.
- The problem of “crazy roots”. A tomato producer was not using AMF to increase productivity, but to
solve the problem of the disease, i.e. as a bioprotectant or biocontrol system. Was the system too
artificial to get a positive effect of the mycorrhiza on the control of the disease?
- We need to think on what mycorrhiza can do for the soil. Mycorrhizae are always present but are not
always effective. Root density is an important factor to consider, because in order to be effective,
mycorrhizal fungi need a good root system to colonize.
- We need to change our way of producing food and think more holistically, which involves also not only
thinking on the most correct way of inoculating crop plants with AMF, but also thinking of other
methods to increase the effectiveness of the mycorrhiza such as intercropping.
- Agricultural application: it is important to know the needs of each crop in a particular situation e.g.
when and how the inoculum needs to be applied, which depends very much on the quality and
properties of the soil. Science needs to come together with industry, to give answers to those needs
science towards application.
- Knowledge transfer to the end user needs to be improved.
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- Producing a good inoculum is not only about the selection of the best strain. What is as well important
is to know how to control/master it to make it behave according to the different needs of each
particular situation. Note that AMF have different nuclei, so they can show different phenotypes.
Knowing how to induce the most suitable phenotype would be even more important than selecting a
strain with the highest infectivity.
- Plant endophytes or mycorrhizal endophytes can have a big effect on mycorrhizal efficiency.
Mycorrhiza can be the bridge between the microbiome of the soil and the microbiome of the plant, and
at the same time the plant is able to shape the microbial community surrounding it.
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List of participants
Name Institution email address
Amaia Nogales University of Évora [email protected]
Andreas Prokop W. Neudorff GmbH KG [email protected]
Arthur Schüßler Wilhelms GmbH [email protected]
Bea Ceipek INOQ GmbH [email protected]
Bettina Hause Leibniz-Institut für Pflanzenbiochemie
Birgit Schäfer W. Neudorff GmbH KG [email protected]
Carolin Schneider INOQ GmbH [email protected]
Desiree Jakobs-Schönwandt
University of Applied Sciences Bielefeld
Dorothée Klemann Leibniz Institute of Plant
Biochemistry [email protected]
Frank Waller Julius-Maximilians-Universität
Würzburg [email protected]
Günter Welz Bayer Crop Science [email protected]
Heiner Terkamp Consultant [email protected]
Helmut Baltruschat Institute of Bioanalytical
Sciences [email protected]
Imke Hutter INOQ GmbH [email protected]
Ingrid Weissenhorn Servaplant [email protected]
Karin Hage-Ahmed Universität für Bodenkultur
Wien [email protected]
Louis Mercy INOQ GmbH [email protected]
Matthias Doëring INOQ GmbH [email protected]
Michael Cordts Biohof Cordts [email protected]
Michael Weiß Fachbereich Biologie, Universität Tübingen
Mira Schaefer Xeroflor [email protected]
Philipp Roedel INOQ GmbH [email protected]
Pius Floris Plant Health Care BV [email protected]
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Session 1: Innovative products and formulations
Carolin Schneider INOQ GmbH, Germany
Welcome and introduction
Imke Hutter INOQ GmbH, Germany
Mycorrhiza and microbial products – an overview on market, products and legislation.
Louis Mercy INOQ GmbH, Germany Innovative mycorrhiza production/products
Karin Hage-Ahmed University of Natural Resources
and Life Sciences Vienna, Austria
Plant strengtheners or bioprotectants: Fusarium oxysporum and mycorrhiza – a model system for multitrophic interactions in soil
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INOQ GmbH
From university to small enterprise
20 years of business with science
Dr. Carolin Schneider
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Organisation and facilities
founded in 1995, now 3 companies
www.inoq.de
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Organisation and facilities:
Group
16,5 ha arable acreage
1.500 m² greenhouse (foil tunnel)
11 sterile working places, climate chambers
laboratory for micro- and molecular biology
40 permanent staff (6 scientists) + seasonal workers
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Working fields: plant production
Commercial micropropagation
Breeding projects
Development of agriculture Medicinal plants
Elite tree species
Fibre plants
Vegetable plants
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Working fields: PGPM
Symbiotic microorganisms production
Production of 200.000 litres MP per year (AMF, EMF, ErMF)
Customers: fertilizer + substrate industry, garden and landscaping,
plant production
Services
Investigation of soil and root samples
Molecular methods
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Research focuses
PGPM: isolation, in-vitro propagation, selection of highly effective
strains for industrial scale, formulation (encapsulation, seed coating…)
Mycorrhiza and PGPM interactions with plants: Physiology, markers
and predictive tools, strategies for mastering colonization and
beneficial effects on plant performance in greenhouse and field
production
Development of new innovative products for garden and landscaping,
plant production and agriculture
Methods for quality control of products
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Recent projects
ROOTOPOWER Empowering root-targeted strategies to minimize abiotic stress impacts
on horticultural crops (EU, 2012-2015)
Recombinant Glomalin: Production, isolation, characterization and application as
biotechnical resource (National: ZIM 2011-2013)
The use of ericoid mycorrhiza in commercial garden and landscaping (National: ZIM
2010-2013)
Improvement of water use efficiency of crop plants via mycorrhiza fungi (National: BMBF
2010-2012)
Product- and production safety of high intensive plant production WeGa (National: BMBF
2011-2016)
Native Plants and Mycorrhizal Fungi in Wind Erosion Control in the Kailash-Manasarovar
Region Tibet, China (Switzerland: Veluxstiftung 2007-2010)
COST Action FA1103: Endophytes in Biotechnology and Agriculture
A functional marker of commercial AMF isolates for sustainable agriculture (EU:
Marie-Curie IAPP 20110-2014)
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A functional marker of commercial AMF
isolates for sustainable agriculture
Marie Curie Actions: Industry-Academia Partnerships
and Pathways (IAPP)
2010-2014
University of Évora, Portugal
Prof. Dr. Birgit Arnholdt-Schmitt
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Quality control parameters
effectiveness?
AMF quantity?
contaminants?
strain characteristics?
Parameter Quality
defined inoculation
defined effectiveness
free of pathogens
defined strain
characteristics
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A functional marker of commercial AMF
isolates for sustainable agriculture
Can AOX genes serve as a marker for effectivity of
commercial AMF (arbuscular mycorrhizal fungi) inocula?
Is there a functional relationship between the marker and the
effectiveness?
Inoq: Molecular biology
Innovative production methods
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• Science
• Mobility
• Intersectorial
• Intercultural
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Workshop: Innovative mycorrhiza production
Mycorrhiza and microbial products –
an overview on market, products and legislation
Imke Hutter, 2.12.2014, Schnega
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Mycorrhiza and microbial products: definition
Type of MOs used in products:
Mycorrhiza, filamentous fungi, bacteria
Originating from:
soil, rhizosphere, plant (endophytes)
3B rule of bioeffectors:
Bioprotectants, biofertilizers, biostimulants
Influences:
Market, Price, Legislation
Partida-Martínez and Heil (2011) The microbe-free plant: fact or artifact? Front Plant Sci. 2011; 2: 100.
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Mycorrhiza and microbial products: market
Bioeffectors worldwide (2011): 6 billion €
Region Product % Billion €
World Bioprotectant 18 1,2
Biofertilizer 68 4
Biostimulant 13 0,8
Europe Bioprotectant 22 0,26
Biofertilizer 47 0,56
Biostimulant 31 0,37
Prof. Manfred Raupp, http://dpg.phytomedizin.org/de/die-dpg/regelmaessige-tagungen-mit-
dpg-beteiligung/plant-protection-and-plant-health-in-europe/presentations-ppphe-2014/
2025: 5 billion €
Syngenta, ABIM, 2014
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Mycorrhiza and microbial products: market
Region % billion €
Asia 35 1,4
Europe 15 5,6
USA 5 0,2
ROW 45 1,8
Biofertilizer worldwide (2011): 4 billion €
Prof. Manfred Raupp, http://dpg.phytomedizin.org/de/die-dpg/regelmaessige-tagungen-mit-
dpg-beteiligung/plant-protection-and-plant-health-in-europe/presentations-ppphe-2014/
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Mycorrhiza and microbial products: market
Parameter Bioprotectant Biofertilizer Biostimulants
Market trend > 10 % p.a. 1-3 % - 20 bis + 20 %
Market maturity High Low Low-high
R & D High medium Medium-high
Size companies Large Middle Small
Number companies Very low Low High
Strategy International National regional
Prof. Manfred Raupp, http://dpg.phytomedizin.org/de/die-dpg/regelmaessige-tagungen-mit-
dpg-beteiligung/plant-protection-and-plant-health-in-europe/presentations-ppphe-2014/
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Mycorrhiza and microbial products: market
Parameter Bioprotectant Biofertilizer Biostimulants
Patents/Data available High Medium Low
Research costs high Medium low-high
Agricultural use Easy Medium Knowledge
complicated
Profit margin > 50 % Ca. 50 % < 50 %
Consumer image Bad-good Medium-
good
Tonic: very good
Microorganisms: bad-
good
Prof. Manfred Raupp, http://dpg.phytomedizin.org/de/die-dpg/regelmaessige-tagungen-mit-
dpg-beteiligung/plant-protection-and-plant-health-in-europe/presentations-ppphe-2014/
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Mycorrhiza and microbial products: products
Number of companies: 25
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Mycorrhiza and microbial products: products
Mode of production
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Mycorrhiza and microbial products: products
Mode of production
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Mycorrhiza and microbial products: products
Number of propagules:
• 1 Mio/200 g
• 1 Mio/100 mg
• 220/cm³
• >150 Spores/g
• Up to 5000 per teaspoon
• >2000/cm³
• 50 spores/g
• 3780 viable propagules per pound
• 60.000 per lb
• 30.000 to 60.000/ounce
• 1.450.000 spores/g
• 40-100 spores/g
• Not specified
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Mycorrhiza and microbial products: products
Field of application:
• Arable crops, maize, corn, sunflower, potatoes, soy, grain, clover, wine, fruit,
horticulture
• Agriculture, forestry, horticulture, fruit growing, market gardening, turf grass
• Research
• Gardening, agriculture, horticulture, roof planting
• Perennial crops (fruit trees, olive, grapevine, citrus, tropical fruits, palm
trees) horticulture, ornamentals, turf: lawns, golf courses, sports fields,
public parks
• Not specified
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Mycorrhiza and microbial products: products
User‘s guide
16 companies provide information on usage on their website
2 companies provide information on request
Rest does not specify
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Mycorrhiza and microbial products: products
€€€€€€€ per plant or hectare???
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Mycorrhiza and microbial products: legislation
German Fertilisers Act + regulation (EC 2003/2003)
- Fertilizer (mineral, organic)
– soil improvers (Bodenhilfsstoffe)
– plant growth improver (Pflanzenhilfsmittel)
-> no registration, responsibility of BMEL
German Plant Protection Act + regulation (EC 1107/2009)
– plant protection products
– plant strengtheners
-> registration via BVL, €€€€
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Mycorrhiza and microbial products: legislation
Regulation EC 2003/2003
• only for mineral fertilisers
• not for organic material (compost, manure etc.)
• Microorganisms are not regulated in EC 2003/2003
but
• regulation for mutual recognition (EC 764/2008)
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Mycorrhiza and microbial products: legislation
EC intends revision to harmonize the legislation of all fertilizer materials
-> discussion whether to put microorganisms in „biostimulants“
Definition of Biostimulants vary greatly, f. e.:
• substance applied to plants or soils to regulate…crop‘s physiologicalprocesses, thus making them more efficient. …act on plant physiology…to improve vigour, yields, quality…. (EBIC)
• …with the exception of nutrients and pesticides, which, whenapplied….modify physiological processes of plants…potential benefit togrowth, development and/or stress response (du Jardin, EC)
• a plant biostimulant is a substance or microorganism…..(ArcadiaInternational for the EC)
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Mycorrhiza and microbial products: legislation
Intended use = / ≠ mode of action
Plant growth promotion can lead to stress tolerance or even induced resistance
Recently discussed definition does not justify to include in PPP nor Fertilizer
New Group, Sub Group??
Data requirements for registration must be clearOrganizational requirements (f. e. where to apply for registration)
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Mycorrhiza and microbial products: legislation
Critical points:
� Users will purchase economically worthwhile Bio-Effectors
- present price situation is favourable for their use,
� Manufacturers are mainly SMEs with < 100 employees, not
in the position to finance toxicity studies,
� If prices rise the Bio-Effector Market will be dramatically
reduced,
� Providers‘ Associations work and propose
recommendations for future registration
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Mycorrhiza and microbial products: Who?
IBMA: International Biocontrol Manufacturers‘ Association
EBIC: European Biostimulants Industry Council
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� Directive 2009/128/EC: Establishment of a
framework to achieve a sustainable use of pesticides
by reducing the risks and impacts of pesticide use on
human health and the environment and promoting
the use of integrated pest management and of
alternative approaches or techniques such as non-
chemical alternatives to pesticides.
Mycorrhiza and microbial products: Why?
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Mycorrhiza and microbial products: Why?
The demand and the consumption of
phosphate fertilizers increase.
Moreover, fertilizer prices are highly volatile.
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Mycorrhiza and microbial products: Why?
Thank you for your attention!
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Innovative mycorrhiza production and products
Louis Mercy
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500 µm
Mycorrhizal Root Fragment
Extraradical mycelium and spores
� Mycorrhizal root fragments
� Living Hyphae
� Spores
Vesicles
Arbuscular Mycorrhizal Fungi (AMF)
Arbuscule
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AMF are Obligate biotroph: they can not complete their life cycle withouta plant host
Arbuscular Mycorrhizal Fungi (AMF)Life cycle
Germinating spore
Mycorrhizal Colonization
Asymbiotic phase
Symbiotic phase
Sporulation
Mycorrhizal Contact
Appressorium
Dormant spore
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Arbuscular Mycorrhizal Fungi (AMF)A solution for plant performance, but ….
AMF can improve plant performance (more than 50 years of research)
Why it is not used commonly?
� AMF is still not well known and understood
� AMF are not used always properly
� Mycorrhizal products are often expensive
� Mycorrhizal benefits are not always guaranteed
� Quality of mycorrhizal products are heterogenous
� Enduser awareness
� Physico-chemical soil properties (case of Phosphorus)
Vosatka et al., 2008; Ijdo et al., 2011; Malusa et al., 2011; Smith & Smith, 2010, 2011
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Mycorrhizal productsQuality control
What is quality for mycorrhizal product?� Ability to generate mycorrhiza and positive effect on plant performances
1- Must contains living AMF propagules able to generate colonization2- Eliciting potential ?
AMF propagules?
Viable propagules?
Richness?
MPN
Ink staining
vital staining
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Mix inSoil
Layer Precolonized Plants
- +Foliar application
Ability to generate mycorrhiza?Eliciting potential ?
Example with commercial product
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How to ideally apply mycorrhizal inoculum?
AMF need to establish a contact with plant root
� Application in soil (mixing/layer) or in hole before planting
� Use of preinoculated plant before transplanting
� Seed coating (importance of formulation)
� Irrigation system (suitable if propagules can reach plant root –Filter/sunlight!)
X Not on leaves or on compact soil/vegetation surface !
Mycorrhizal productsApplication methodologies
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1 ppm P 10 ppm P 50 ppm P 100 ppm P 300 ppm P
Phosphorus influences mycorrhizal development and Mycorrhizal Growth Responses (MGR)
Arbuscular Mycorrhizal Fungi (AMF)Understand its behaviour: the phosphorus problem
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%F% : Frequency of mycorrhiza
M% : Intensity of mycorrhizal development in root
Potato in vitro plantletsinoculated with Rhizophagus irregularis
Ink staining after8 weeks culture
MGR
P
Class C
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Mycorrhizal productionsEx vitro and In vitro
Step 1: Inoculation with 4-10%starter inoculum
45 cm
Production process for ex-vitro mycorrhizal inoculum at INOQ
Step 2: Plant growth 4-6 months
Step 3: Quality controland enrichment
DNA scan and root analyses
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Mycorrhizal productionsEx vitro and In vitro
Step 1: Inoculation with spore or gel plug
Production process for in-vitro mycorrhizal inoculum at INOQ
Step 2: AMF development 4 months
Step 3: Quality controland enrichment
Root Organ Culture (ROC)
Half-closed Arbuscular Mycorrhizal –
Plant (HAM-P)
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Mycorrhizal productionEx vitro VS In vitro: Pros and Cons
ex-vitro VS In vitro
+ All AMF species are virtually able to grow
+ Enrichment process (root fragments) allows more efficient for AMF colonization after long term storage
+ Easy to mix and integrate into formulation
+ presence of PGPM
- Not suitable for irrigation system
- Carrier material and non-soluble substrate
- Contamination risks
- Need space
+ Produced under sterility = no contaminant
+ Quality easy fo follow, Easy tracability
+ Produce easy-to-concentrate inoculum
+ Suitable for irrigation system (with caution regarding filters)
- Few AMF species are able to grow under in vitro systems
- Spores produced are smaller and less able to survive
- Only Rhizophagus irregularis is available on the market currently: problem of biodiversity substitution in high mycorrhizal soils potential,
Glasshouse In vitro system(need specific equipment, available at
INOQ)
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Mycorrhizal productsEx vitro VS In vitro
Ex vitro inoculum is more efficient…
To generate mycorrhizal colonization To generate positive mycorrhizal growth response
Ex vitro VS In vitro product potential?
Calvet et al., 2013
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Innovative Mycorrhiza Production and Products
Our experiences at INOQ
Mycorrhizal Physiology/Genetic
The necessity to see the plant and microbiom as a Holobiont
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Mycorrhizal performanceEx vitro VS In vitro
Ex vitroInoculation with crude inoculumRhizophagus irregularis QS 69(6600 propagules per plant)
In vitroInoculation with in vitro sporesRhizophagus irregularis QS 69(10 mature and viable spores)
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Same response on mycorrhizal colonization
But differential response on MGR
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Mycorrhizalrate (%)
Plant FW(g)
8 weeks after inoculation
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0102030405060708090
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M M + Elicitor(soil)
Innovative mycorrhizal inoculum productionFrom greenhouse trials...
Solanum tuberosum inoculated with 100 in vitro sporesR. irregularis (B22-5) ± Eliciting
Mycorrhizal rate (%) Spore number (U/L)
Spore size (µm) Spore viability (%)
Stem
a a
a a
b
b
b b
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0
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Trifolium Sorghum Hordeum
Innovative mycorrhizal inoculum productionFrom greenhouse trials...
Eliciting with various AMF species
Eliciting with various plant species
Colonization rate (M%)
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Rhizophagusirregularis Strain A
Rhizophagusirregularis Strain B
Rhizophagusirregularis Strain C
Rhizophagusirregularis Strain D
Rhizophagusintraradices
Funneliformismosseae
Colonization rate (M%)
M
M + Elicitor (soil)
Oberved also on:
Zea mays, Glycine max,Plantago lanceolataTagetes patula Solanum lycopersicum
b bb b
b b
a
a aa
a a
ba
b
a
b
a
Solanum tuberosuminoculated with 10 in vitro spores
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Innovative mycorrhizal inoculum productionFrom greenhouse trials...
Eliciting on various Phosphorus concentrations
Colonization rate F% M plants
F% M plants + Elicitor (leaves)
M% M plants
M% M plants + Elicitor (leaves)
b
a
b
a
b
a
a
b a
b
a
b
a
b
a
a
F% : Frequency of mycorrhiza (% of impact on root)
Solanum tuberosum inoculated with 300 in vitro spores R. irregularis (QS 69)
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Innovative mycorrhizal inoculum production... to Technology Transfer
Interest of elicitation during mycorrhizal production
Case A: Crude inoculum + Elicitation in soil
Case B: In vitro spore + Elicitation in soil
Inoculation with 1400 in vitrospores / 10L
2013 2014
4%
10%
% increase in mycorrhizal propagules
2013 2014Inoculation with crude inoculum500 P/L
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2013 2014
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2013 2014
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Innovative mycorrhizal inoculum performance... to Technology Transfer
NM M M + Elicitor A(Leaf)
M + Elicitor B(Soil)
x 1,41 x1,5 x1,65
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Control Elicitor A Elicitor B
Growth
Biomass x 3,1 x 3,64 x 3,7
Colonization rate (M%)
Solanum tuberosum inoculated with R. irregularis (4% crude inoculum)
8 WAIP: 4 ppm
%
c
a
b
Interest of Elicitor association in mycorrhizal product
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Implementation of mycorrhiza or other endophytes in crop soil needs a sum of knowledges and techniques. This means an implementation of strong stakeholder partnerships for integration of needs and expectations.
Mycorrhizal
producer
Research team
Farmer
Industry
Innovative mycorrhizal performanceTogether
Thanks for your attention !
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Arbuscular Mycorrhizal Fungi (AMF)AMF: A tool for ecosystem services
Bioregulators
Biofertilizers
BioprotectionNM + Phytophtora INRA Dijon
The 3B mycorrhizal rule
Optimize plant nutrition and water uptake
Increase survival and resistance against biotic and abiotic stresses
M + Phytophtora
Stimulate plant growth and rooting
Impact of AMF on overstressed plants
M + ABANM + ABA
INOQ
INRA Dijon
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1
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed05.12.2014 1
Plant strengtheners or bioprotectants: Fusarium oxysporum and mycorrhiza – a
model system for biocontrol
Karin Hage-Ahmed
University of Natural Resources and Life Sciences ViennaDepartment of Crop SciencesDivision of Plant Protection
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Content
Fusarium oxysporum and its formae speciales
Biology
Host range
Control
Model system AMF and Fusarium oxysporum
Arbuscular mycorrhizal fungi in disease control
Experimental settings
Results
Discussion
05.12.2014 2
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2
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Fusarium oxysporumand its formae speciales
Fusarium oxysporum causes wilt diseases in a widerange of economically important crops.
05.12.2014 3
Foto: D. J. Vakalounakis
F. oxysporum f.sp. radicis-cucumerinum
Drooping, wilting, chlorosis, vasculardiscoloration andstunting.
F. oxysporum f.sp. lycopersici
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Fusarium oxysporumand its formae speciales
Generally formae speciales are highly host specific
Plant species – cultivars
Pathogenic and nonpathogenic members are morphologicallyindistinguishable
Are host specific but can be nonpathogenic colonizers of roots of non-host plants -> survival
120 formae speciales: Fruit and vegetable crops: tomato, cucumber, lettuce, melon, watermelon etc.
Ornamentals: carnation, gladiolus, lily, tulip, cyclamen etc.
Field crops: cotton, tobacco, banana, sugarcane etc.
05.12.2014 4
Frequently reports ofnew formae speciales!!!
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3
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Fusarium oxysporumand its formae speciales
05.12.2014 5
Microconidia, macroconidia,
chlamydospores (root exudates)
Plant debris, soil, propagationmaterial
Control:
resistant cultivars
soil and substrate disinfestation
healthy seeds and transplants
biological controlA…ChlamydosporesB…Microconidia
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 6
Whipps, 2004
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4
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Arbuscular mycorrhizal fungi
Bidirectional nutrient transfer
plant-derived C → fungus
phosphorus, nitrogen, copper, zinc → plant
Nutritional benefits
Bio-protective effects (greenhouseexperiments → field?)
05.12.2014 7
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Arbuscular mycorrhizal fungi
Control of soil-borne diseases:
Fusarium oxysporum
Verticillium dahliae
Phytophthora spp.
Sclerotium cepivorum
Rhizoctonia solani
Pectobacteriumcarotovorum ssp.carotovorum
etc.
05.12.2014 8
Control of foliar diseases ?
→ Increase of infection, necroticlesions, conidial production(powdery mildews, downy mildews, Botrytis cinerea)
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5
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Arbuscular mycorrhizal fungi
05.12.2014 9
Modes of action in disease control (Whipps, 2004):
Direct competition or inhibition
Enhanced or altered plant growth, nutrition and morphology
Biochemical changes associated with plant defencemechanisms and induced resistance
Development of an antagonistic microbiota of bacteria and fungi
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 10
Fusarium oxysporumf. sp. lycopersici (Fol)
AMF
Tomato in intercropping settings
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6
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
Experimental set-up I
05.12.2014 11
Dual culture Treatments
Tomato/tomato1 Control
Tomato/leek Fol (Fusarium oxysporum f. sp. lycopersici 007)
Tomato/cucumber AMF2
Tomato/basil AMF+Fol
Tomato/fennel
1 cv. Kremser Perle2AMF inoculum consisted of 6 different Glomus species (Glomusetunicatum, G. microagregatum, G. intraradices, G. claroidium , G. mosseae and G. geosporum)
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 12
Hage-Ahmed et al., 2013
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7
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 13
ANOVA, Bonferroni‘s test (P<0.05)Hage-Ahmed et al., 2013
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 14
Dual culture Disease severity (%)
Fol AMF+Fol
Tomato/tomato 16.2±2.1 A a 14.32±3.8 A a
Tomato/leek 14.3±3.4 B a 4.4±1.5 A a
Tomato/cucumber 15.8±3.9 A a 7.0±2.2 A a
Tomato/basil 14.2±2.9 B a 5.3±1.7 A a
Tomato/fennel 14.0±2.8 A a 6.9±2.0 A a
Fol disease severity (%) in the different plant combinations (mean ± S.E.).
Different letters indicate significant differences, small letters among columns (Kruskal-Wallis test, P < 0.05), capital letters among rows (Mann-Whitney U test, P < 0.05).
Hage-Ahmed et al., 2013
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8
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
Experimental set-up II
Plant material
Solanum lycopersicum L.cv. Tiny Tim
Cucumis sativus L. cv. Aztec F1
Treatments
Control
Fol (Fusarium oxysporum f. sp. lycopersici)
AMF
AMF + Fol
05.12.2014 15
Root exudation
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
Collection of root exudatesafter 6 weeks
05.12.2014 16
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9
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 17
Control Fol AMF AMF+Fol
Root weights [g] 1.87 ± 0.18 ab1 1.24 ± 0.17 a 2.06 ± 0.18 b 1.39 ± 0.14 a
Shoot weights [g] 3.08 ± 0.33 a 2.51 ± 0.29 a 3.53 ± 0.25 a 2.67 ± 0.24 a
Disease incidence
[%]
- 10.40 ± 2.71 a - 5.60 ± 2.40 a
AM colonization
rate [%]
- - 6.10 ± 0.90 a 6.90 ± 1.30 a
Leaf P
concentration [mg
g-1 dry weight]
2.45 ± 0.24 a 3.00 ± 0.17 a 3.00 ± 0.18 a 2.80 ± 0.07 a
1 Different letters indicate significant differences (ANOVA, P <0.05, Tukey’s test).
Hage-Ahmed et al., 2013
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Model system –Fusarium oxysporum and arbuscular mycorrhiza
05.12.2014 18
ANOVA, P <0.05, Tukey’s test
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10
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed05.12.2014 19
ANOVA, P <0.05, Tukey’s test
Model system –Fusarium oxysporum and arbuscular mycorrhiza
Hage-Ahmed et al., 2013
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Conclusions
AMF colonization, Fol infection rates and bioprotectiveeffects of AMF are intercropping partner dependent(leek, basil)
Use of AMF-plant feedback effects for „intelligent“ intercropping
AMF alter glucose (↑) and malate (↓) levels
chlorogenic acid (AMF+Fol ↑), mycorrhiza inducedresistance???
05.12.2014 20
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11
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed
Discussion
Biocontrol with AMF – Does it have a future or is itsomething we get on top? Efficacy?
What role do agricultural weeds play?
Do the alterations in the root exudation influence otherrhizosphere inhabitants/antagonists? Other biocontrolagents? Cocktail?
Efficacy testing?
05.12.2014 21
University of Natural Resources and Life Sciences, ViennaDepartment of Crop Sciences
Innovative mycorrhiza production, Schnega, 2014 - Karin Hage-Ahmed05.12.2014 22
Thanks to:Siegrid Steinkellner , Andreas Voglgruber, Franz Hadacek, Vladimir Chobot, Horst Vierheilig, Sabine Daxböck-Horvath, Hans Jung, Hans Krammer, Anna Moyses, Susanne Reichert, Agnes Strauss, Alexandra Horner, Elisabeth Koschier, Sascha Weilguni
P20923-B17
Thank you for your attention!
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Session 2: Round table on the needs of nurseries, farmers and inoculum producers, cost-efficient prices, results on the field
Mira Schaefer Niedersächsische Rasenkulturen NIRA GmbH & Co. KG, Germany
Usage of mycorrhizal fungi in the vegetation-mats-production for extensive roof greening
Ingrid Weissenhorn Servaplant BV, Netherlands
Innovations needed for practical use of mycorrhiza
Michael Cordts Biolandhof Cordts, Germany
Use of beneficial organisms in organic farming – first results
Discussion
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Usage of Mycorrhizal fungi in vegetation-mats-production for extensiv roof greening
Dipl. Ing. hort. (FH) Mira Schaefer Niedersächsische Rasenkulturen
NIRA GmbH & Co. KG 27243 Groß Ippener
Schnega 02.12.2014
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Niedersächsische Rasenkulturen NIRA GmbH & Co. KG
• Located in the North-West of Germany
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• Sods since 1972 (2014: 130 ha)
• Vegetation-mats since 1982 (2014: 30 ha)
• 15 employees
Production
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Use of mycorrhizal fungi at NIRA GmbH & Co. KG
• 2006 tried the first time in Sods and Sedum-mats production
Main-question: Impact on Sedum and sods?
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Production Stages Sedum-mats
• Outdoor production
• Carrier
• Substrate (xeroterr)
• Sedum-shoots
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Tested methods (2006)
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1. Spreading Mycorrhiza on the already
arranged field
- Usage of a gritter - labor-extensive - exact amound (100ml/m²)
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2. Mixing Mycorrhiza with the substrate
before using it on the fields
- Exact dosage very difficult - Labor-intensive
-> Not practice-oriented enough for NIRA Gmbh & Co. KG
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And the results 2006 were…
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Results (Method 1+2)
With mycorrhizal fungi 100ml/m²
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Results 2006
No visual differenz between Method 1 and 2 - Visual effect on following Sedum species:
- S. spurium - S. kamtschatikum - S. lydium - S. reflexum
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Results
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Results 2006
- Closer population - Faster growth - Greener and more energetic habit Also weeds grew faster
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Results 2006, NIRA GmbH & Co. KG
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Conclution
- Usage of mycorrhizal fungi on our fields - 100-60 ml/m²
- INOQ-Sprint (windy conditions) - INOQ Agri R
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A look in the future and questions
Plans and ideas of NIRA GmbH & Co. KG - Try of mycorrhiza in dry and wet seeding - First tests on the impact on Sedum-seeding - Impact on sphagnum moss
Questions: - Does mycorhizzal fungis have an impact on the roots of sedum-plants - The Price is always an issue
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Thank you
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www.servaplant.nl innovatie voor duurzaam groen
Ingrid Weissenhorn and Claudia Külling Servaplant BV, Netherlands [email protected] Schnega, 02-12-2014
Innovations needed for practical use of mycorrhiza
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www.servaplant.nl innovatie voor duurzaam groen
drs. Claudia Külling
dr. Ingrid Weissenhorn
• Analysis (soil, leaf, root) • Consultancy • Supply (mycorrhiza, ....
About us
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www.servaplant.nl innovatie voor duurzaam groen
Our customers
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www.servaplant.nl innovatie voor duurzaam groen
Experience with mycorrhiza application
The “first generation” mycorrhiza products in many situations do not (fully) meet the demands of the user. Effectiveness – price / benefit • Change the demands / growing system of the user • Improve / adapt the effectiveness of mycorrhizal products
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www.servaplant.nl innovatie voor duurzaam groen
Colonizing roots faster Daphne odora ‘Aureomarginata’
start IU/cm3 weeks root col.
26-07-10 1,5 28 0% 21-05-11 1,5 50 8% 14-05-11 3 44 39% garden 36%
Choisya ternata
start IU/cm3 weeks root col. 03-06-10 1,5 20
36 11% 51%
06-04-11 1,5 12 22
1% 9%
21-05-11 3 6 16
0% 42%
• higher dosage – lower inoculum price • fresh, vegetative inoculum – spore-based inoculum
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www.servaplant.nl innovatie voor duurzaam groen
More effective through bioactivation
Mycorrhiza Chitin Root colonization after 4 months
- - 5% + - 25% + + 35%
Ericoid Mycorrhiza mixed through the peat substrate
Cranberry cuttings
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www.servaplant.nl innovatie voor duurzaam groen
More effective through synergism
0
5
10
15
20
25
30
35
Control 33Myc 16Tri 23Myc + Tri 0
% mortality after 6 month due to Cryptocline cyclaminis (no fungicides used)
Dual inoculation of Cyclamen with Glomus spp. and Trichoderma harzianum (Dubsky et al. 2002)
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www.servaplant.nl innovatie voor duurzaam groen
Suitable for artificial growing systems?
• Peat • Rockwool • Fertigation • ....
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www.servaplant.nl innovatie voor duurzaam groen
More effective under field conditions
• Maize, cold temperatures in spring, P-deficieny • Organic farming, new EU restrictions on fertilisation with
anorganic P-fertilizers • Mycorrhiza strains effective at colder temperatures?
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www.servaplant.nl innovatie voor duurzaam groen
Taylor-made inocula • Elaeagnus without Frankia • Elaeagnus with compatible Frankia
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www.servaplant.nl innovatie voor duurzaam groen
Summary of innovations needed
Innovative Mycorrhizal Inocula • Colonizing roots faster • More effective through bioactive substances and
synergism with other beneficial microbes • Suitable for artificial growing systems • More effective under field conditions • Taylor-made
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www.servaplant.nl innovatie voor duurzaam groen
Thank you!
www.servaplant.nl
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Hackfruchtanbau mit Mykorrhiza
Michael Cordts, Schnega
(Bioland-Betrieb)
1
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Biolandhof Cordts
• Landwirtschaftlicher Familienbetrieb
bei Schnega im Landkreis Lüchow – Dannenberg
• Acker- und Grünland 154 Hektar
• Wald 56 Hektar
• Mutterkuhherde 20 Tiere
• Freilandhähnchen 500 Tiere
– 2 Mastdurchgänge / Direktvermarktung
2
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Umstellungsgedanken
• Vor ca. 4 Jahren haben wir begonnen uns mit der Umstellung auf den biologischen Anbau auseinanderzusetzen. Bedingt durch:
– Konventioneller Anbau Stärkekartoffeln Silomaissilage als Lieferant (Biogasanlage) Getreide (Roggen) – Große Hähnchen-Ställe bei uns in der Gegend – Maismonokultur – Austausch mit einem Bioland-Betrieb im Nachbardorf. – Biooffensive der Landwirtschaftskammer (Herr Markus Mücke) und die Umstellung ist bei uns gereift.
3
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Körnermais / Sojabohne
• Beim Mais hohe organische Masse, die dem Boden wieder zugeführt wird
• Passt auf unsere Böden
• Keine Winterfrucht
• Leguminose im Betrieb
4
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Nährstoffversorgung (NStickstoff+PPhosphat)
• Mais N = hoch + P = normal
• Getreide N = normal + P = normal
• Sojabohne N = kein + P = normal (Mais und sonstige Kulturen)
– Dungkooperation mit Legehennenhalter
– Champost und eigenen abgelagerten Rindermist
(Sojabohne)
– Nur reinen Kompost
(RAL-Gütesicherung + Fibl gelistet)
zugelassen für den Ökolandbau Kreislaufgedanken 5
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Soja und Körnermais
6
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Weitere Aussichten / bzw. Anbauverhältnisse
• Speise-Kartoffeln in der Fruchtfolge
• Körnermais + Soja etwas reduzieren
• Dinkel anstelle von Triticale
• Versuche mit Mykorrhiza Pilzen
(Mais + Soja + Kartoffeln)
7
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Mykorrhiza und ökologische Landwirtschaft
• - Nährstoffversorgung /Pflanzenverfügbarkeit
• ( Phosphat / Nitrat – Ammonium)
• - Stresssituationen
• - Krankheitserreger
• - Praxistauglich im Ackerbau
8
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Sandige Böden
• Verschiedene Formen
Welche passt zu meinem Betrieb bzw. zu
meinen Kulturen ?
• Fruchtfolge
Pflanzen die keine Mykorrhiza ausbilden
Lupine ?
• Humusgehalt
Fördernd ?
9
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Krankheiten/Abwehrsystem
• - Fusarien/Pilzbrand im Mais
• - Fusarien/Roste beim Getreide
• - Mehltau
• - Krautfäule in Kartoffeln
10
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Praxis
• Saatgut beizen/impfen ?
• Dungstreuer ?
• Microgranulatstreuer ?
• Ausbringmenge / ha ist relevant
11
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Vielen Dank für Ihre Aufmerksamkeit!
12
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