Impact of foliar application of growth promoters (KNap and GA3) and Nutrients on ZEA MAYS

Abstract

Foliar application of potassium naphthenate, gibberellic acid and nutrients made separately, or in combination with nutrients caused significant increase in various growth indices (except height and leaf number) and yield of Zea mays ( var. ganga ) over the control. The promoters proved to be superior to the nutrient solution. Of the two promoters, in general, gibberellic acid acted better with increasing concentration. Potassium naphthenate appeared to be much effective only at 2000 ppm. However, better results were not obtained when the promoters were applied with nutrients. Nevertheless, lower dose of gibberellic acid coupled with nutrients proved to be effective.