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Changes in Sugars, Starch, RNA, Protein, and Lipid‐soluble Phosphate in Leaves of Cotton Plants at Low Temperatures 1
Author(s) -
Guinn Gene
Publication year - 1971
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1971.0011183x001100020028x
Subject(s) - starch , biology , gossypium hirsutum , hardening (computing) , phosphate , cold hardening , gossypium , botany , carbohydrate , horticulture , agronomy , food science , biochemistry , chemistry , organic chemistry , layer (electronics)
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.