blueberry and strawberry breeding highlightswhatcom.wsu.edu/ag/edu/sfc/documents/sfc2017/2017... ·...
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Blueberry and Strawberry Breeding Highlights
Michael DossettBC Berry Cultivar Development Inc.
Presented by Eric Gerbrandt
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• Develop varieties for processing and fresh markets– Machine-harvestability (#1) improved growth habit (#3)– Firmer fruit (#2)– Span season and concentrated ripening– Shock and Scorch virus resistance/tolerance– Improved tolerance to root rot/water-logged soils– Improved resistance to bacterial and fungal cane diseases
Program Objectives:
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What is Involved in a Blueberry Breeding Program?
• Year 1 - Make crosses, plant seedlings
• Years 3,4 - Evaluate seedlings, make and propagate selections
• Years 6,7 - Begin evaluation of selections
• Year 8 or so - Grower trials
• Years 10-15 – Release cultivar
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Testing blueberry selections for bruising tendency
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0
50
100
150
200
250
300
350
Duke
Cloc
kwor
k
Tops
helf
Blue
Rib
bon
BC 1
508.
12
Libe
rty
BC 9
-2-1
0
Carg
o
BC 1
638.
32
BC 1
509.
1
BC 1
638.
36
Drap
er
Huro
n
BC 1
509.
10
Caly
pso
BC 1
638.
29
BC 1
2-6-
8
BC 1
507.
86
BC 1
507.
68
BC 1
638.
14
Firm
ness
(g fo
rce/
mm
def
lect
ion)
Variety or Selection
Firmness of Recent Blueberry Releases and BC Selections (2016 data)
05-Jul
11-Jul
25-Jul
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First Selections Ready for Grower Trial!
• BC 12-6-35 (cross in 2009, selected in 2013)
• BC 14-40-117 (cross in 2011, selected in 2014)
• BC 14-40-158 (cross in 2011, selected in 2014)
• BC 14-42-1 (cross in 2011, selected in 2014)
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Second Round Selections Ready for Grower Trial!
• BC 12-6-35 (cross in 2009, selected in 2013)
• BC 14-58-265 (cross in 2011, selected in 2014)
• BC 14-58-187 (cross in 2011, selected in 2014)
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BC 12-6-35
• Similar growth habit as Draper - may not produce a particularly large bush
• Flower buds are small and indistinct –may not be fully formed in fall?
• Midseason – probably about same timing as ‘Bluecrop’
• Medium-large berry, dry scar, light blue colour
• Concerns: Yield and vigour
• Phenomenal fruit quality -particularly firmness and shelf-life!
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60
80
100
120
140
160
180
200
Harvest 7 Days 14 Days 21 Days 28 Days 35 Days
Firm
ness
(g/m
m d
efle
ctio
n)
Days in Cold Storage
Firmness After Cold Storage of Hand-harvested Blueberry Fruit
BC 12-6-35
BluecropDraperDuke
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BC 14-40-117• Upright, open bush, very
vigorous grower!• Midseason – probably will
start with ‘Bluecrop’ or slightly later
• Very small scar, light blue colour, good flavour
• Firmer than Draper, but not as firm as 12-6-35
• Need more plants!
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BC 14-40-158• Upright, narrow, vase-shaped bush
• Early-midseason - later than Draper, probably a bit earlier than BC 12-6-35 and BC 14-40-117
• Medium-sized, medium blue colour, very good flavour
• Firmness similar to ‘Duke’ or ‘Draper’
• Sets a lot of flower buds, heavy pruning will be important
• Fruit clusters can be tight - might be a problem for mechanical harvest?
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BC 14-42-1
• Upright, open bush
• Early-midseason – early read is that this will have similar timing to 14-40-158
• Medium-sized, dark blue colour, good flavour - may be processing only because of colour and size?
• Firmness similar to ‘Draper’
• Sets a lot of flower buds, heavy pruning will be important
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Early/Mid-Season Samples (July 28-August 4):BC Selections with Comparisons at Clearbrook
130
150
170
190
210
230
250
270
Frui
t firm
ness
(g fo
rce/
mm
def
lect
ion)
Time post harvest (date)
BC-14-40-117 (Clearbrook)
BC-14-40-14 (Clearbrook)
BC-14-40-158 (Clearbrook)
BC-14-42-47 (Clearbrook)
BC-14-8-76 (Clearbrook)
Bluecrop (Clearbrook)
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Day-neutral Strawberry Activities
• Evaluate selections already in pipeline• Evaluate material from outside of program• Focus on day-neutrals but continue with June-bearers as
needed…– ~3000 seedlings/year– At least one parent in each cross is DN– Selections made in spring, catch both
DN and JB plants, monitor through season– Propagate for further evaluation
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Strawberry Selection in Pipeline• Selection of interest: BC 10-2-1
– Excellent reviews from Quebec grower trials, particularly fruit quality
– Early read in BC is size and yield similar to ‘Albion’
– Compact plant makes fruit visible and picking easy
– Currently in virus cleanup
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BC 1521.12
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BC 1516.3
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BC 1509.31 BC 1513.70
BC 1525.33 BC 1502.46
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Thank You!
• RIDC, BCBC, BCSGA, LMHIA, WRRC, WSC
• Georgia Kliever, Gosia Zdanowicz, Carol Koch, Rob Hildebrandt, ChaimKempler
• Eric Gerbrandt , Carolyn Teasdale, Mark Sweeney, Karina Sakalauskas, Siva Sabaratnam, Tom Baumann, Jason Smith, Mike Makara, Rudi Janzen
• Amanda Herfst, Ariel Brown, Meghan Samoyloff, Katie Galliazzo, Celia Stewart, Mark Schmidt, Aleesha Jones, Joanna Zhu, Angel Chu
• Agriculture and Agri-Food Canada (AAFC)
Anyone else I may have inadvertently left off!