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This article in CS

  1. Vol. 11 No. 2, p. 262-265
     
    Received: Sept 21, 1970


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doi:10.2135/cropsci1971.0011183X001100020028x

Changes in Sugars, Starch, RNA, Protein, and Lipid-soluble Phosphate in Leaves of Cotton Plants at Low Temperatures1

  1. Gene Guinn2

Abstract

Abstract

Cotton plants (Gossypium hirsutum L., cv ‘Westburn’) were severely injured when chilled at 5 C without prior hardening. Exposure to hardening temperatures of 15 C day and 10 C night prevented subsequent injury at 5 C. Sugars and starch increased during exposure to hardening temperatures, but RNA, protein, and lipid-soluble phosphate decreased. Except for increases hi sugars, these changes in cotton during exposure to hardening temperatures are opposite changes which have been reported in plants that can be hardened to withstand subzero temperatures.

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