Light-Induced Inhibition of Potato Tuber Sprouting

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Science  13 Sep 1963:
Vol. 141, Issue 3585, pp. 1047-1048
DOI: 10.1126/science.141.3585.1047


In freshly harvested Alaska-grown potato tubers there is a"rest period" during which time no sprout growth can be visibly detected. This is followed by a physiological stage of development when sprout growth will occur in the dark but is suppressed by light. Following this is a stage of gradual resumption of growth of light-suppressed sprouts and a lessening of the inhibitory responses in tubers planted at successive lengthening periods of time after harvest.