Impact of Different Potassium (K) Application on Oil Content of Brassica under Field Condition

Abstract

Pakistan is confronting a chronic scarcity of domestic edible oil requirements and Brassica, a second largest contributor after cottonseed to the indigenous edible oil production, can play a vital role in saving the huge amount of hard earned foreign exchange of Pakistan. One of the major issues with brassica oil seed production is the water requirement of the brassica crop. To address the problem, field experiment was conducted to evaluate the effect of potassium and water stress levels on canola (Brassica napus) under field conditions. Seed weight (4.86 g), grain yield (2335.1 kg ha^-1), biological yield (8398.7 kg ha^-1) and harvest index (27.73 %) were recorded with increase in potassium level up to 120 kg ha^-1 and with full irrigation. Maximum oil content (49.9%) were observed in the plants treated with full irrigation of 120 kg K ha^-1.

Keywords: Brassica, Potassium,Oil Content, Variety, Irrigation, Water Stress, Biological Yield, Hravest Index.