sess05 2 vanderzaag – asian seed potato production systems related to the highlands of africa
TRANSCRIPT
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Asian Seed Potato Production SystemsRelated to the Highlands of Africa
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Four Potato Cropping Zones of ChinaMulti‐crop Zone IV is like the Highlands of Africa
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Asian Seed Potato Production SystemsRelated to the Highlands of Africa
Locations: Yunnan, ChinaDalat, Vietnam Mountain Trail, the Philippines
Elevation: 1500 to 3,000 m aslLatitude: 11 to 24 NConstraints: late blight,
bacterial wilt (lower elevations), viruses
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National Program Collaboration with CIPOver the past 30 years
1. Varietal development with LB, BW & Virus resistance
2. Tissue Culture demystified3. Simple, informal, on‐farm Seed Programs
developed
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Farmers doing Tissue Culture and RMT in their homes 1982 in Vietnam
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Professor Wang Jun with tissue culture plants for RMT1986 in Yunnan, China
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Varietal Development
1. Mexican Clones: CFK69.1, B71.240.2, I1085, Utatlan
2. Local Breeding: Mexican clones X CIP LB germplasm
3. Products: Cooperation 88, Igorota …
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C88: late blight & virus resistance, excellent fresh & processed2009 in Southwest China
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Cooperation 88 (C88): yield 35 – 80 T/ha2010 in Southwest China
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Igorota: late blight & virus resistance, excellent fresh & processed 2011 in Mountain Trail, the Philippines
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Tissue Culture in Farmer’s home2010 in Dalat, Vietnam
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RMT program by farmer: 1.5M rooted cuttings sold/year2012 in Dalat, Vietnam
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Rooted cuttings in commercial grower’s field2012 in Dalat, Vietnam
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Rooted cuttings growing in commercial grower’s field2012 in Dalat, Vietnam
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Farmer multiplying tissue culture plants2012 in Mountain Trail, the Philippines
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Igorota: generation 3 seedAugust 2012 in Mountain Trail, the Philippines
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RMT program by farmer: mini tubers sold2012 in Dalat, Vietnam
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AeroponicsSouthwest China
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National government subsidizes 3G basic seed productionChina
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Results & Impact
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Igorota: yield of 40 T/ha during the rainy seasonAugust 2012 in Mountain Trail, the Philippines
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Igorota: growing during the rainy seasonAugust 2012 in Dalat, Vietnam
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Igorota, G6, in commercial grower’s field, bacterial wilt infected plants pulled at first symptoms2012 in Dalat, Vietnam
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C88: processed in large chip factory2010 in Yunnan, China
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C88: sold as a gift to tourists2009 in Southwest China
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Yield Data by Country
Location Average Yield(T/ha)
Variety High Yield Observed (T/ha)
Season
Yunnan 16 C88 80 dry
Dalat 20 Igorota 40 wet
Mountain Trail
20 Igorota 40 wet
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Status of C88 & Igorota in 2012
Variety Area (ha) % of Total
Locations Grown
C88 400,000 40 Southwest China, Myanmar, Vietnam
Igorota 8,400 70 Dalat, Vietnam Mountain Trail, the Philippines
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RMT Farmer building new home … “The house Igorota built!”2012 in Mountain Trail, the Philippines
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Potato Crop with no visual virus infection, but Late Blight!Ethiopian Highlands
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Five Keys to Success1. Potato Crop is a high value business2. Varieties with durable resistance to LB &
viruses by local breeding3. BW management (seed movement from high
to lower elevation & negative selection)4. Initial seed production is supported by the
public sector5. Seed production is a profitable business
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OpportunityForLandless Youth
DemystifyTechnology!