Shawn P. Conley, Soybean and Wheat Extension Specialist, Department of Agronomy, University of Wisconsin, Madison
Soybean maturity selection is an important management decision. Maturity group (MG) zones represent regions where a cultivar is best-adapted without implying that MG-specific cultivars cannot be grown elsewhere (Boerma and Specht, 2004). Most recently, Mourtzinis and Conley (2017) redelineated MG zones across the U.S. using 2005-2015 yield variety trial data. In their study, although the zones were generated using a vast amount of information, the results are restricted to the planting date (PD) range of the variety trials.
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