2012
Heat units and development stages for soybean
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Contributor/Checkoff:
North Dakota Soybean Council
Category:
Sustainable Production
Keywords:
GeneticsGenomics
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
F. Adnan Akyuz, North Dakota State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
North Dakota Soybean Council
(n/a)
Institution Funded:
North Dakota State University
(n/a)
Brief Project Summary:

The hypothesis of this study is that soybean growth and development after flower initiation has taken place will follow a predictable rate based on heat units. Longer maturing cultivars will reach maturity later (need more heat units) than early maturing cultivars. In North Dakota a number of models for predicting growth and development are operational (wheat, corn, and canola). We anticipate that there is a possibility to develop a predictive model for soybean.

The researchers will determine relationship of heat units needed for critical soybean growth stages and soybean maturity for different maturity groups and will see if a predictive model for anticipated soybean yield can be...

Unique Keywords:
#breeding & genetics
Information And Results
Project Deliverables

Final Project Results

In Carrington in with years with cool growing seasons like 2011, the no-till treatment lagged behind developmentally compared to the tilled systems resulting in lower yield. In normal growing seasons tillage system did not impact soybean yield so reducing tillage is an economically viable way to decrease soybean input costs by $8 to $15 per acre if conditions allow. Barley, corn and wheat were all found to be acceptable previous crops for soybean based on disease incidence and severity found in this study. Com-posted feedlot manure is a favorable alternative fertilizer source for crops grown prior to soybean production by reducing fertilizer costs.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.