Extension News

2007 Alfalfa Performance Data Available

10/24/2007

AMES, Iowa -- Results of the 2007 Iowa Crop Performance Test for alfalfa are now available online at http://www.agron.iastate.edu/icia. Copies of Iowa State University (ISU) Extension publication 2007 Iowa Crop Performance Tests -- Alfalfa and Other Forages (AG 84) will be available Oct. 29, and may be requested by contacting Iowa Crop Improvement Association (ICIA) at (515) 294-6921 or the ISU Extension Distribution Center at https://www.extension.iastate.edu/store/ or (515) 294-5247.

The 2007 alfalfa tests include entries of commercial varieties conducted at Ames and Nashua. Potato leafhopper tolerance trials were conducted at Ames. Performance data provided with the results include yield in tons per acre, fall dormancy ratings and disease resistances.

No winterkill occurred during the 2006-2007 winter. A late cold weather event in April, with temperatures down to 20 degrees F, greatly reduced yields of all cuttings. Yields ranged from 3.34 to 5.16 at Ames and 4.07 to 6.76 at Nashua. All yields are expressed in tons per acre on a dry matter basis. Results from orchardgrass, perennial ryegrass, reed canarygrass and timothy grass tests are included as well.

ICIA's crop performance testing program is a cooperative effort with the Iowa Agriculture and Home Economics Experiment Station and ISU Extension. The program offers unbiased, third-party information to Iowa growers on commercial seed available for them to grow. Information on the adaptation and performance of hybrids and varieties is currently offered for alfalfa, barley, corn, oat, soybean and wheat.

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Contacts :
Mark Smith, Agronomy, (515) 294-7887, smithma@iastate.edu

Jessica Vogel, Iowa Crop Improvement Association, (515) 294-6921, jlvogel@iastate.edu

Jean McGuire, Extension Communications and Marketing, (515) 294-7033, jmcguire@iastate.edu