Jerry Johnson - Colorado State University Wheat Breeding and ...

COLLABORATIVE ON-­‐FARM TESTS
AND
PLANTING PLANNING & DECISIONS
Jerry J. Johnson
Associate Professor and Extension Specialist -­‐ Crop ProducHon
Department of Soil and Crop Sciences
Colorado State University

VARIETIES PLANTED IN COLORADO IN 2010 AND 2011
Variety % Acreage 2010 % Acreage 2011
Hatcher 27 35
Ripper 13 12
TAM 111 8 10
Bill Brown 3 5
Jagalene 7 2
Prairie Red/TAM 107 7 2
Bond CL 5 4
Winterhawk

2011 COLLABORATIVE ON-­‐FARM TESTS (COFT)
VARIETY PERFORMANCE RANKING COMPARISONS
Ranking 2011 Overall (20) Above Median (10) Below Median (10) North
1 Bill Brown (47.1) Bill Brown (64.6) Hatcher (29.9) Hatche
2 Hatcher (47) Hatcher (64.1) Bill Brown (29.6) Bill Br
3 Snowmass (44.5) TAM 112 (61.9) Ripper (28.8) Snowm
4 Ripper (44.3) Snowmass (61.6) Snowmass (27.4) Winte
5 Winterhawk (43.9) Winterhawk (60.5) Winterhawk (27.3) TAM 1
6 TAM 112 (43.9) Ripper (59.8) TAM 112 (25.9) Ripper

Yield (bu/ac)
90
80
70
60
50
40
30
20
y = 0.9616x + 0.4662
R² = 0.98861
Yield Regression of Ripper on Hatcher
2007-­‐2009, & 2011 COFT Results
(Results from 82 locaHons/years)
10
10 20 30 40 50 60 70 80 90
Hatcher Yield (bu/ac)
Hatcher
Avg. Yield=42.9
Ripper
Avg. Yield=41.8

Yield (bu/ac)
90
80
70
60
50
40
30
20
Regression of Bill Brown on Hatcher
2008, 2009, & 2011 COFT Results
(Results from 60 locaHons/years)
y = 1.0024x -­‐ 0.1575
R² = 0.99168
10
10 20 30 40 50 60 70 80 90
Hatcher Yield (bu/ac)
Bill Brown
Avg. Yield = 41.5
Hatcher
Avg. Yield = 41.6

Yield (bu/ac)
90
80
70
60
50
40
30
20
Regression of Snowmass on Ripper
2010 & 2011 COFT Results
(Results from 39 locaHons/years)
y = 1.1238x -­‐ 4.7209
R² = 0.98104
Snowmass
Avg. Yield = 49.4
10
10 20 30 40 50 60 70 80 90
Ripper Yield (bu/ac)
Ripper
Avg. Yield = 48.1

u/ac
90
80
70
60
50
40
30
20
y = 1.0505x -­‐ 5.7494
R² = 0.98149
Regression of TAM 112 on Hatcher
2011 COFT Results
(Results from 20 locaHons)
10
10 20 30 40 50 60 70 80 90
Hatcher Yield (bu/ac)
Hatcher
Avg. Yield = 47.2
TAM 112
Avg. Yield = 43.9

Yield (bu/ac)
90
80
70
60
50
40
30
20
y = 1.0145x -­‐ 4.1056
R² = 0.97787
Regression of Winterhawk on Hatcher
2011 COFT Results
(Results from 20 locaHons)
Hatcher
Avg. Yield = 47.2
10
10 20 30 40 50 60 70 80 90
Hatcher Yield (bu/ac)
Winterhawk
Avg. Yield = 43.8

VARIETIES PROPOSED FOR 2012 COFT
Ò Byrd
Ò Brawl CL Plus
Ò Snowmass
Ò Hatcher
Ò SeZler CL?
Ò Ripper?

WHEAT PRODUCTION = SOIL ORGANIC MATTER CONTENT
SOM content in 2011 variety trials
Ò Average SOM content was 1.43%
Ò Minimum SOM content was 0.8%
Ò Maximum SOM content was 2.1%
How SOM improves the soil and the environment
Ò Retains more water
Ò Improves erosion control (both wind and water erosion)
Ò Reduces soil temperature
Ò Sequesters carbon (improves farmland stewardship)
Ò Best gia to future generabons
How can you improve SOM content?
Ò No-­‐Till and Reduced Tillage
Ò Manure or sludge applicabons
Ò More residue (stripper header, increase other crop residue)

JERRY’S LIST OF PLANTING CONSIDERATIONS
FOR A GREAT 2012 WHEAT CROP
Ò Control Volunteer Wheat and Weeds
Ò Soil Sample to Determine OpHmum FerHlizer Rates
Ò Find Your Seed of New VarieHes ASAP
Ò Plant Seeds/acre, not Pounds/acre
Ò Get Your PlanHng Equipment Ready, Plan for Unexpected
Ò Take Your Soil Temperature With a Soil Thermometer
É Opbmum Seed-­‐depth Soil Temperature at Planbng is 78 o F
Ò Plant Later Maturity Variety First, Early Maturity Later
Ò Plant Late Enough to Break the Green Bridge
É Reduce probability of RWA and Wheat Streak Mosaic Virus infestabons
Ò Get exercise and walk your fields
É Look for disease and/or insects
É Count and calculate percent emergence
É Evaluate soil moisture
É Evaluate crop for spring ferblizabon

} Colorado Wheat AdministraHve
Commifee
} The Colorado Wheat Research
FoundaHon
} Colorado State University
} Crops TesHng Team
} Jim Hain
} Kierra Jewell
} Sally Sauer
} Wheat Breeding Program
} ScoZ Haley
} John Stromberger
} Emily Heaton
} Rebecca KoZke
} Marc Moragues
} ScoZ Seifert
} Victoria Valdez
ACKNOWLEDGMENTS
} Research Centers
} ARDEC
} Chris Fryrear
} Mark Collins
} Bob Bee
} Central Great Plains Research Center
} Merle Vigil
} Dave Poss
} Delbert Koch
} Paul Campbell
} Plainsman Research Center
} Kevin Larson
} Dennis Thompson
} Deb Harn
} Arkansas Valley Research Center
} Mike Bartolo
} Jeff Davidson

} Russian Wheat Aphid Program
} Frank Peairs
} Jeff Rudolph
} Thia Walker
} Mike Koch
} Terri Randolph
} ScoZ Merrill
} CSU Extension Agronomists
} Bruce Bosley-­‐PlaZe River Area
} Wilma Trujillo-­‐Southeast Area
} Ron Meyer-­‐Golden Plains Area
} Alan Helm-­‐Golden Plains Area
} Colorado FoundaHon Seed
} Brad Erker
} Aaron Brown
ACKNOWLEDGMENTS
} CooperaHng Farmers
} John & Jensen Stulp
} Burl Scherler
} Dennis & MaZ Campbell
} Randy Wilks
} Jim Carlson
} Steve Meakins
} Cooksey Farms
} Ross Hansen
} Cary Wickstrom
} Bill & Steve Andrews
} CO Wheat Producers Involved in the
CollaboraHve On-­‐Farm TesHng Program