2.  Site specific hybrid planting (SSHP)  G X E Interaction  Hybrid Characteristics  Regional Hybrid Performance  Constructing a field  Field Layout/ History  Future of SSHP, Requirements and Challenges

3. Environment 1 Environment 2

4.  Hybrid G X E Interaction  Wide scale testing during breeding/cultivar advancement  Phenotyping  Always changing

5.  Yield  Maturity  Disease  Drought  Fertility  Population  Flex  Many More  Hybrid must be complementary to the environment

6.  Regional= dealer/network area  G X E  Regional Yield Trials  Evaluate Hybrid X across many different conditions  Mass amount of data  Evaluation of potential lines

7.  Field has a unique layout  Select a pool of potential hybrids  DK 56-78: High yield potential, low stress tolerance  DK 54-85: Mod yield potential, good stress tolerance  Designate clear management zones  Sand hills, high yield, gray leaf spot, etc…

8.  Analyze past yield history carefully  Hybrid A in 2011 is not equal to Hybrid B in 2012  Maintain close maturities  Start with simple layout

9. Deep Sand w/ low water holding potential. Loam w/ moderate water holding potential and potential for high and moderate yields Clay w/ high water holding potential with high to moderate yield potential

10. Hybrid A: high stress tolerance, ability to flex in good moisture and low population Hybrid B: ability to sustain yield in moderate population with periods of stress Hybrid C: ability for high yields, high population and higher disease pressure

11.  New Planter  Multiple bins  Mass amount of yield data  Phenotyping data  More complex overtime

12.  Who gets data?  Adoption of technology  Seed distribution  Phenotyping  Quality of regional data  Hybrid and environmental change