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This article in CS

  1. Vol. 11 No. 2, p. 242-244
    Received: Aug 15, 1970

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Two Major Genes for Time of Flowering and Maturity in Soybeans1

  1. R. L. Bernard2



Two independent gene pairs affecting time of flowering and maturity in soybeans (Glycine max (L.) Merr.) were identified and studied in a common genetic background developed by backcrossing to the commercial variety ‘Clark.’ E1, a gene for lateness linked to pubescence color (T t), was transferred from strain T175, and e2, a gene for earliness, from T245. The late allele at each locus was partially dominant in most combinations. Flowering and maturity dates for the homozygotes based on 2 years data at Urbana, Ill., are summarized below as number of days earlier (−) or later (+) than Clark.

Clark e1 E2 0 0
Clark-E1 E1 E2 +23 +18
Clark-e2 e1 e2 − 7 −14
Clark-E1 e2 E1 E2 + 9 + 1
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