Effect of gibberellic acid on carbonic anhydrase, photosynthesis, growth and yield of mustard

Abstract

The plants of mustard (Brassica juncea L.) were treated with 0, 25 and 50 μM gibberellic acid (GA3) at three fully developed leaf stage (30 d after sowing). Effect of GA3 on carbonic anhydrase activity, photosynthetic rate, leaf area index and dry mass was studied at 50, 70 and 90 d after sowing. At harvest 1000 seed mass, pod number and seed yield were recorded. GA3 treatment (50 μM) enhanced all the characteristics studied.