Studies on effect of seed hydration value of various soybean varieties with respect to soil types and moisture regimes
Author(s): Papita H Gourkhede, Dhanashri D Baraptre and Madan S Pendke
Abstract: The laboratory experiment was conducted in laboratory conditions during 2020-21 in Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani entitled “Studies on effect of seed hydration value of various soybean varieties with respect to soil types and moisture regimes” to evaluate the response of different soybean varieties in three soil types to three different soil moistures in laboratory conditions. This experiment was laid out in Factorial Completely Randomized Design with combinations of 72 treatments and three replications. This study was carried out in Petri plates with eight soybean varieties viz. MAUS-71, MAUS-158, MAUS-162, MAUS-612, JS-335, JS-9305, KDS-344 and KDS-726 at three moisture levels of 50%, 75% and 100% field capacities in three soil types i.e., Vertisols, Inceptisols and Entisols soils. The observations were taken at regular interval of time of 6 hours from sowing up to 96 hours. The results obtained from investigation indicated that various parameters like seed germination percentage and seed hydration value was influenced due to different soil moistures (field capacities) in different types of soils. Amongst all eight varieties, highest germination percentage was noted in MAUS-162 followed by MAUS-71 in three soil types and lowest germination percentage was recorded in JS-9305. In all three soil types, the highest seed hydration was recorded in MAUS-162 followed by KDS-726 and lowest seed hydration was noted in KDS-344 and MAUS-158 at three different moisture levels. Generally, varieties which showed low seed hydration value have low germination percentage but it is not applicable to all varieties as some seeds have thin seed coat while some have thick seed coat which affects the germination percentage of soybean. Amongst all three soil types, Vertisols and Inceptisols soil showed early and better germination for different varieties of soybean seeds. Also, better germination was observed in75% and 100% soil moistures. Among all eight soybean varieties, MAUS-158 and KDS-344 showed low seed hydration value than other varieties so they can be suitable for rainfed conditions. From investigation it was found that variety MAUS-162 was superior over all other varieties as it showed better germination percentage as well as highest seed hydration value.
