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  1. Vol. 10 No. 4, p. 326-329
     
    Received: Feb 2, 1970
    Published: July, 1970


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doi:10.2135/cropsci1970.0011183X001000040002x

Effect of Temperature on Self-fertility and In Vitro Pollen Growth Characteristics of Selected Alfalfa Clones1

  1. Charles Straley and
  2. Bill Melton2

Abstract

Abstract

Eight alfalfa clones, Medicago sativa L., were evaluated for self-fertility and pollen growth characteristics under four temperature regimes (16, 21, 27, and 32 C). Highly significant differences were found among clones and among temperatures. Highly significant clone ✕ temperature interactions were found for self-fertility, in vitro pollen germination, and in vitro pollen tube elongation. Pollen germination and tube elongation were not correlated with self-fertility with one exception, self-fertility and pollen germination at 16 C.

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