Effect of antioxidant foliar application and harvesting stages on seed morphometry of soybean (Glycine max (L) Merr.)
Author(s): Neeraj Nath Parihar and MT Bhingarde
Abstract: The present study was carried out under the field and laboratory conditions at Post Graduate Institute Research Farm and Seed Technology Research Unit, Department of Agricultural Botany, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar (M.S.) during kharif season 2017 and 2018. Two varieties of soybean viz., V1 - KDS-726, and V2 - KDS-344 were used for the study. The foliar spray with antioxidants viz., T1- Ascorbic acid (100 ppm), T2- Salicylic acid (100 ppm), T3- Humic acid (2000 ppm), T4- Pyridoxine (100 ppm), T5- Salicylic acid (100 ppm) + Ascorbic acid (100 ppm) along with T0- Control. The crop was harvested at three harvesting stages viz., H1- at physiological maturity, H2- 5th days after physiological maturity and H3- 10th days after physiological maturity. The harvested seeds were stored up to 360 days of storage. The field and laboratory experiment was conducted in Split Factorial Design with three replications. seed morphometry characteristics viz., length of seed (7.861 mm), width of seed (6.551 mm), area of seed (36.172 mm2), seed diameter (5.383 mm), seed perimeter (30.356 mm) and seed roundness (93.972) were recorded in variety KDS-726 (V1) irrespective of foliar application of antioxidants and harvesting stages. The interaction of the soybean variety KDS-726 with foliar application of ascorbic acid @100 ppm and harvested at physiological maturity, found superior for seed morphometry characteristics viz., length of seed (7.989 mm), width of seed (6.679 mm), area of seed (38.742 mm2), seed diameter (5.675 mm), seed perimeter (31.501 mm) and seed roundness (95.041) as compared with other interactions.
