Tuberization in potato at high temperatures: response of physiologically young plants to disbudding and growth inhibitors |
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| Authors: | C M Menzel |
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| Institution: | (1) Botany Department, University of Queensland, St. Lucia, 4067 Brisbane, Queensland, Australia;(2) Present address: Maroochy Horticultural Research Station, Queensland Department of Primary Industries, Sunshine Coast Mail Centre, P. O. Box 5083, 4560, Queensland, Nambour, Australia |
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| Abstract: | Summary In physiologically young plants (Solanum tuberosum L., cv. Sebago), abscisic acid (ABA) and chlorethyltrimethylammonium chloride (CCC) promoted tuberization at day/night temperatures
of 32°/18°C, but not at 32°/28°C, in contrast to earlier experiments with physiologically old plants. Disbudding promoted
tuberization at both temperatures. These results suggest that physiologically young plants have a greater capacity for increased
gibberelling synthesis in the buds at high temperatures. |
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| Keywords: | Solanum tuberosum L gibberellin abscisic acid CCC |
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