Jornal de Fisiologia e Patologia Vegetal

Effect of Boron on the Nitrogen Metabolism in Sweet Sorghum (Sorghum bicolor L.)

Sujeet Jadhav

Boron is an important trace element required for the different physiological functions in plants. Boron is involved in nitrogen, carbohydrate metabolism in plants. Nitrogen activity has been increased due to adequate boron supply in plants. The experiment was carried out on two varieties of sweet sorghum (Sorghum bicolor L). Sweet sorghum is an important staple food in semi-arid areas. Pot culture technique was conducted triplicate for this experiment. The study was carried to analyze the relation between nitrogen uptake and allied enzyme activity due to different concentrations of boron. In the present investigation the effect of different boron concentrations like 0 ppm (Control), 10 ppm, 50 ppm and 100 ppm on sweet sorghum var. RSSV-9 and Madhura have been studied. The data was collected after the full growth of the plant. The results are showing that total nitrogen and nitrate content is increased due to boron treatment. The enzymes involved in nitrogen metabolism like Nitrate Reductase (NR) activity and Nitrite Reductase activity (NiR) have also been increased due to boron treatment. The results are suggesting that adequate boron supply to the sweet sorghum may increase nitrogen metabolism in sweet sorghum. The objective of the experiment is to identify the correct dose of boron for nitrogen metabolism in sweet sorghum. The correct dose of boron is helpful to understand the interaction with nitrogen which is an effective method to improve the sustainability and productivity of sweet sorghum.