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Science 20 June 1969:
Vol. 164. no. 3886, pp. 1397 - 1398
DOI: 10.1126/science.164.3886.1397
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Articles

Peanuts: Gibberellin Antagonists and Genetically Controlled Differences in Growth Habit

Abraham H. Halevy 1, Amram Ashri 1, and Yoseph Ben-Tal 1

1 Faculty of Agriculture, Hebrew University, Rehovot, Israel

Treatment of peanuts with gibberellin changed the orientation of lateral branches of runners to that of erect ones, and two growth retardants changed those of the erect type to a more horizontal orientation. Little or no difference was found in amounts of endogenous gibberellin in the two types of plants, but amount of native gibberellic acid antagonists was higher in runner plants. Furthermore, runner plants contained a particular gibberellic acid inhibitor not found in erect plants. Applications of various auxins, antiauxins, and a cytokinin had no effect on tropistic growth of the side branches.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)