Tools for Selecting Small Grain Varieties from UCCE Statewide Trials Mark Lundy Assistant CE Specialist UCCE-UC Davis Nicholas George Assistant Project Scientist UC Davis
Tools for Selecting Small Grain Varieties from UCCE Statewide Trials
Mark Lundy Assistant CE Specialist UCCE-UC Davis
Nicholas George Assistant Project Scientist UC Davis
Overall Program Objective: Deliver timely, site-specific crop management information to grain growers throughout the state
Variety selection is a key component of crop management. The variety testing program is a cornerstone of our research & extension program.
PAST <---> PRESENT <---> FUTURE
The region pictured is primarily the state of:
A. California
B. Arizona
C. Nevada
D. Jefferson
E. Drought
Californ
ia
Arizona
Nevada
Jeffe
rson
Drought
0% 0% 0%0%0%
Are you a (mark all that apply)?
A. Grower
B. CCA/PCA
C. Input supplier
D. Researcher
E. Other
Grower
CCA/PCA
Input s
upplier
Resear
cher
Other
0% 0% 0%0%0%
Have you grown or consulted on a small grain crop (excluding rice) in the past 5 years?
A. Yes
B. No
YesNo
0%0%
If you have you grown or consulted on a small grain crop in the past 5 years, was it primarily harvested
for grain or forage?
A. Grain only
B. Forage only
C. Mostly grain
D. Mostly forage
E. A mix of grain and forage
Grain
only
Fora
ge o
nly
Most
ly gr
ain
Most
ly fo
rage
A mix
of g
rain
and fo
rage
0% 0% 0%0%0%
For small grains you have harvested for grain in the past 5 years, what crops have you grown (mark all
that apply)?
A. Wheat
B. Triticale
C. Barley
D. Oats
E. Other
Wheat
Tritica
le
Barley
Oats
Other
0% 0% 0%0%0%
For small grains you have harvested for forage in the past 5 years, what crops have you grown (mark
all that apply)?
A. Wheat
B. Triticale
C. Barley
D. Oats
E. Blend
F. Other
Wheat
Tritica
le
Barley
Oats
Blend
Other
0% 0% 0%0%0%0%
What are your average wheat grain yields?
A. 3000 lbs/acre
B. 4000 lbs/acre
C. 5000 lbs/acre
D. 6000 lbs/acre
E. 7000 lbs/acre
F. 8000 lbs/acre
G. 9000 lbs/acre
3000 lbs/
acre
4000 lbs/
acre
5000 lbs/
acre
6000 lbs/
acre
7000 lbs/
acre
8000 lbs/
acre
9000 lbs/
acre
0% 0% 0% 0%0%0%0%
In which California region/county(ies) do you manage or consult on small grains and/or forage
crops (mark all that apply)?
A. San Joaquin
B. Solano
C. Sacramento
D. Contra Costa
E. Stanislaus
F. Yolo
G. Other
San Jo
aquin
Solano
Sacra
mento
Contra C
osta
Stanisl
ausYolo
Other
0% 0% 0% 0%0%0%0%
What source of information helps you to determine which small grain variety to plant (mark all that
apply)?
A. Personal experience
B. Seed dealer
C. UC Cooperative Extension
D. Conversations with other growers
E. California Wheat Commission
Personal e
xperience
Seed deale
r
UC Coopera
tive Ext
ension
Convers
ations w
ith o
the...
Californ
ia W
heat Com
mi..
.
0% 0% 0%0%0%
Rank the following components in the order of their importance to your variety selection decision
(most important first):
A. Yield
B. Disease resistance
C. Protein
D. Marketability
E. Adaptation to my conditions
Yield
Disease
resis
tance
Prote
in
Mark
etabili
ty
Adaptatio
n to m
y condit.
..
0% 0% 0%0%0%
On what percentage of your small grain acreage do you plant certified seed?
A. 0%
B. 25%
C. 50%
D. 75%
E. 100%
0%25%
50%75%
100%
0% 0% 0%0%0%
Do you typically plant with a contract in place at the start of the season?
A. Usually
B. Sometimes
C. Never
Usually
Sometim
es
Never
0% 0%0%
A solid foundation
Multi-environment trial measuring: Yield Quality Disease prevalence Agronomic traits
Genetics x Environment G = commercial and elite Varieties E = biophysical determinants of crop growth
Crop management is implicitly included as part of the Environmental effect
A solid foundation
Multi-environment trial measuring: Yield Quality Disease prevalence Agronomic traits
PAST <--> PRESENT <---> FUTURE
A solid foundation
Results are compiled in tables:
A solid foundation
Results are compiled in tables:
In the past have you made small grain variety decisions based on information
available on this website? A. Yes
B. No
C. Unsure
YesNo
Unsure
0% 0%0%
A solid foundation
Strengths of past program: Extensive, continuous data
reported in a thorough format
How can we maintain strength while: Gleaning more information from the historical efforts and existing data? Restructuring/augmenting the presentation of the results for users with different needs/objectives from the data?
Current Efforts
New approaches to analysis and presentation of data
Would you be interested in using or learning more about a tool like this for making small grain variety decisions?
A. Yes
B. No
C. Unsure
YesNo
Unsure
0% 0%0%
Current Efforts
New approaches to analysis and presentation of data
Genotype
G x E
• How does variety performance change according to environment?
2016 Durum
UC
Nu
mb
er
Would you be interested in using or learning more about a tool like this for making small grain variety decisions?
A. Yes
B. No
C. Unsure
YesNo
Unsure
0% 0%0%
Looking Ahead
From: Genetics x Environment To: Genetics x Environment x Management
Separate questions: Do variety rankings change as a function of environment?
Do variety rankings change as a function of management? How can we gradually improve our estimates of N & water
management effects on productivity across diverse environments, cropping system goals
Looking Ahead
Increased in-season measurement and real-time information
Looking Ahead
Increased in-season measurement and real-time information
Looking Ahead
Increased in-season measurement and real-time information
For the small grain crop that you predominantly grow/consult on, is irrigation typical?
A. Usually
B. Sometimes
C. Never
Usually
Sometim
es
Never
0% 0%0%
planting/early emergence tillering stem elongation boot/heading flowering grain fill
If you irrigate your small grain crop, select the 2 growth stages that you are most likely to apply water:
A. Planting/early emergence
B. Tillering
C. Stem elongation
D. Boot/heading
E. Flowering
F. Grain fill
Planting/e
arly em
ergence
Tillerin
g
Stem
elo
ngatio
n
Boot/headin
g
Flow
ering
Grain
fill
0% 0% 0%0%0%0%
planting/early emergence tillering stem elongation boot/heading flowering grain fill
When do you typically apply nitrogen?
A. Preplant only
B. Preplant-tillering/stem elongation
C. Preplant-boot/heading
D. Preplant-flowering
E. Never
Prepla
nt only
Prepla
nt-till
ering/s
tem
e...
Prepla
nt-boot/
headin
g
Prepla
nt-flo
werin
g
Never
0% 0% 0%0%0%
How much total N do you typically apply?
A. None
B. 50 lbs/acre
C. 100 lbs/acre
D. 150 lbs/acre
E. 200 lbs/acre
F. 250 lbs/acre
G. 300 lbs/acre
None
50 lbs/
acre
100 lbs/
acre
150 lbs/
acre
200 lbs/
acre
250 lbs/
acre
300 lbs/
acre
0% 0% 0% 0%0%0%0%
Would you be interested in participating in a California Wheat Yield Contest?
A. Yes
B. No
C. Maybe
YesNo
Mayb
e
0% 0%0%
Are increased research and extension efforts specifically related to small grain forages something
you would value?
A. Yes
B. No
C. Maybe
YesNo
Mayb
e
0% 0%0%
Would you be willing to make a voluntary contribution of $2/acre on your forage acres at the end of each season to
fund forage-specific research in California?
A. Yes
B. No
C. Maybe
YesNo
Mayb
e
0% 0%0%
Looking Ahead
People: Davis-based staff
Looking Ahead
People: UCCE Regional Advisors, REC Staff
Acknowledgements
Michael Rodriguez, Taylor Nelsen, Paul Martinez, Peter Murphy, Rozana Moe, Jessica Henriquez, Quinn Levin, Jim Jackson, Fred Stewart, Lalo Banuelos, Francisco Maciel, Darrin Culp, Rob Wilson, Lee Jackson, Josh Hegarty, Phil Mayo, Diane Prato-Mayo, Sam Fraser, and Jorge Dubcovsky
[email protected]; 530-902-7295
Questions/Discussion