2024, Vol. 7, Issue 10, Part G

author(s)
AA Khatal, AB Jadhav, KK Dakhore and YE Kadam

abstract
An experiment entitled “Impact of Dry Spell at Different Growth Stages on Morpho-physiology and Yield of Soybean” was conducted during 2023-24 at Research farm AICRPAM, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani during Kharif season. The field experiment was lay out in a randomized block design with three replications. There were eight treatments combinations using a single sowing date 26th SMW and the soybean variety MAUS-158. Among the eight treatments, T1 recorded significantly highest all pre harvest and post-harvest parameters because there was no water stress throughout the growing period therefore the yield also recorded highest (2594.9 kg ha-1). The plant height at the time of harvest was recorded least in T6 and T2 which was less than T1 by 31.4% and 25.8% respectively, The most critical stage of soybean for water stress is flowering and pod formation because of water stress leaf senescence, maximum number of flower abortion, low leaf area, dry matter, least number of pods, low seed yield plant-1 and kg ha-1 was observed. The least numbers of pods, seed yield (g plant-1), seed yield (kg ha-1) was recorded in T7 which was decreased by 64.3%, 51.3% and 71.8% respectively as compared to T1. The NDVI was also recorded, the result showed that stress treatments has NDVI as compared to non-stress treatments during particular phenological stages.