Arkansas Extension's 2005 SOYVA program has been approved and released. The Internet-based SOYVA program is the most current version available.

Arkansas soybean growers have many soybean varieties from which to select. Currently a number of determinate (Groups 5 and 6) and indeterminate (Group 4) varieties are considered adapted to Arkansas growing conditions by the state's Extension Service.

Variety selection should consider yield potential and avoidance of environmental, cultural and disease problems. The number of cultural and disease problems that can occur exceeds 100,000 possible combinations.

SOYVA has been developed to select varieties that avoid a set of problems presented for a given field. SOYVA makes specific field recommendations easier.

Factors affecting variety selection in the program include geographic location, soil texture, phytophthora root rot potential, planting dates, soybean cyst and root-knot nematode problems, varietal sensitivity to the herbicide propanil, lodging, soil chloride, and irrigation. SOYVA also considers varietal resistance to frogeye leafspot, stem canker and Sudden Death Syndrome (SDS).

SOYVA selects varieties from the adapted list and presents field-specific variety recommendations sorted into “highly recommended,” “recommended” and “non-recommended” categories.

If a downloadable version is preferred, click the “Download Desktop Version of 2005 SOYVA” link at http://soyva.uaex.edu and follow the instructions given.

For more assistance, e-mail Chris Tingle at ctingle@uaex.edu.