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This article in CS

  1. Vol. 10 No. 4, p. 379-380
     
    Received: Jan 5, 1970
    Published: July, 1970


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doi:10.2135/cropsci1970.0011183X001000040019x

Some Chemical Properties of Hybrid Seed from a Cross Between Gossypium barbadense L. and Gossypium davidsonii Kell1

  1. Joshua A. Lee and
  2. F. H. Smith2

Abstract

Abstract

The diploid species Gossypium davidsonii Kell., has a slightly higher level of lysine in the seed than the tetraploid cultivated species, Gossypium hirsutum L and Gossypium barbadense L. It also has much more gossypol in the seed than either of the cultivated forms. Seed from a cross of G. davidsonii (as male) with a glandless accession of G. barbadense (as female) contained no more lysine than the female parent. Most of the other amino acids were, quantitatively, nearer the female parent than the male, and gossypol level was less than one-third that of G. davidsonii. The data suggest that G. davidsonii will not be of much value for improving the protein composition of cultivated cottons, but might contribute some increase in gossypol where this substance is needed to control bollworms (Heliothis spp.)

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