Plant height, leaf number and area, chlorophyll content, soluble protein content, nitrate... By these favourable effects, gibberellic acid and brassinolide treatments produced more number of inflorescences and pods per plant, with better fertility coefficient. genotypes, namely Zimbabwe (exotic) and Varattupallam (indigenous), were taken up for study under field condition for their responses to three foliar sprays of nine growth regulators and nutrients during vegetative, flowering and fruiting stages. The rates of chlorophyll fluorescence, photosynthesis, transpiration and stomatal conductance were high under these treatments. These two treatments produced higher pod and seed yields among the foliar spray treatments. Two Jatropha curcas L. Zimbabwe performed outstandingly well with robust growth, equipped with favorable levels of biochemical and physiological characters Both gibberellic acid and brassinolide treatment enhanced plant height, number of branches, leaf number and leaf area.