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Crop Science Abstract -

Adaptation of Soybean Cultivars to Low-Yield Environments1


This article in CS

  1. Vol. 22 No. 3, p. 678-680
    Received: Jan 29, 1981

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  1. A. K. Walker and
  2. R. L. Cooper2



The objective of this research was to determine whether any recently released Maturity Group II soybean [Glycine max (L.) Merr.] cultivars were well adapted to low-yield environments. A regression analysis was conducted on data from the Uniform Group II Northern States Tests in 1978 and 1979. Maturity, height, lodging, and yield data for each of 10 cultivars were regressed onto the environmental mean yield.

Only one cv., ‘Amcor,’ had a regression coefficient for yield which was significantly less than one. It also had the highest mean yield. Thus, Amcor was more adapted to low-yield environments than the other cultivars. Amcor's adaptation to low-yield environments may be attributed to its greater plant height.

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