Potential Impact of Washington State Alfalfa Variety Testing from 1990 to 2013
ISSN 2158-9429
Volume 7, Issue 2 - December 2014
Editor: Linda Chalker-Scott
Abstract
The impact of 37 irrigated alfalfa variety trials spanning from 1990 to 2013 in Washington State was determined by using average potential benefit in yield (APBy), the difference between the mean yield of the top three commercially available varieties and the trial mean and the maximum potential benefit in yield (MPBy), the difference between top to bottom yielding. The average and maximum potential benefit economically for Washington State per year (APBesy) and (MPBesy) was $12.4 and $42.5 million per year and accumulated over years, $273.7 million and $941.2 million in Washington State, respectively. Currently, 52% of the producers make decisions from these trials for a best estimate of impact of $5.0 million per year.
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