Chilling injury and changes in adenosine triphosphate of cotton seedlings |
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| Authors: | Stewart J M Guinn G |
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| Affiliation: | Crops Research Division, Agricultural Research Service, United States Department of Agriculture, and Department of Botany and Plant Pathology, Oklahoma State University, Stillwater, Oklahoma 74074. |
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| Abstract: | Young Gossypium hirsutum L. seedlings chilled at 5° showed a continual decrease in ATP concentration with time of chilling. Chilled plants returned to optimum conditions were able to restore the initial ATP concentration when chilled only 1 day, but not when chilled 2 days. The decrease in ATP with chilling was prevented by hardening the seedlings at 15° for 2 days (14-hr-day-length) immediately before chilling. The ATP level of hardened plants was higher than of unhardened plants. When hardened plants were chilled at 5°, the ATP level increased in the leaves but decreased in the roots. |
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