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Versatile soybeans resist pests and diseases.

Two new soybean breeding lines developed with the Tennessee Agricultural Experiment Station in Knoxville offer high seed yield pius unique resistance to both nematodes and diseases. They resist multiple races of soybean cyst nematode, which costs growers more than $1 billion annually.

JTN-5303 is a traditional cross between Caviness and Anand, while JTN-5503 combines the attributes of Fowler and Manokin. Both yield significantly more than Hartwig, Fowler, and Anand and have nematode resistance comparable to Hartwig's. Their nematode resistance was mainly based on marker-assisted selection. The new lines were also selected for resistance to diseases such as sudden death syndrome, stem canker, and frogeye leaf spot, with moderate resistance to charcoal rot. They both belong to Maturity Group V, which makes them well adapted to production in the Mid-South. Prakash R. Arelli, USDA-ARS Nematology Research Unit, Jackson, Tennessee; phone (731) 425-4741, e-mail
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Author:Arelli, Prakash R.
Publication:Agricultural Research
Article Type:Brief article
Geographic Code:1USA
Date:Apr 1, 2006
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