Effects of Gibberellic Acid on Dormant Seeds and Subsequent Crops of Pigeonpeas (Cajanus cajan)

Abstract

Seed of the commercial pigeonpea varieties Kaki, Saragateado, and Florido were soaked overnight in solutions of gibberellic acid containing 0, 20, 30, 40, and 50 p.p.m., in order to determine the effect of the acid on plant height, flowering period, and yield of this crop. The following results were obtained: 1. There were no significant differences in plant height between the three commercial varieties that could be attributed to the gibberellic acid treatments. 2. Varieties differed in their flowering periods, but this could not be attributed to the gibberellic acid treatments, as such differences are of genetic origin. 3. Gibberellic acid had no effect on the yield of green peas.