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SW MN and Gold Canyon AZ | 1. They have been breeding corn for yield on a large scale alot longer than soybeans.
2. Corn is easier to breed than soybeans, meaning a corn breeder can pollinate alot more corn numbers in a day than soybeans. More numbers mean better chances of finding something better. Corn you can insert the gene needed into every parent and then cross, in soybeans when get the gene into a soybean line you can only cross THAT parent with others to confire resistance. Gene transfer into soybeans is MUCH more difficult 3.To breed soybeans for Cyst nematode you must have both parents expressing the gene, thus that cuts the amount of parent material to breed in half.
4. Iron chlorosis also complicates the breeding process as that is needed in these upper midwest soils on high PH ,high calcium carbonate soils.
5. There are more companies breeding corn than soybeans.
6. More diseases in soybeans.
7.Harry Stine and Bill EBY have worked VERY hard at increasing soybean yields. I would say they have had more influence on yields than anyone else in the industry. Without there work we would be alot lower on yields.
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What is up with soybean yields.
