Dr. RAVI HUNJEBHARAMARAJ BADIGER2018-01-232018-01-232014-11http://krishikosh.egranth.ac.in/handle/1/5810039774The field experiments were conducted at Water and Land Management Institute (WALMI), Dharwad while, storage and molecular studies were conducted at Seed Quality and Research Laboratory, National Seed Project, University of Agricultural Sciences, Dharwad during 2012-13 and 2013-14. Foliar application of chemicals exhibited significant variation on seed yield and quality components of different soybean genotypes. FeSO4 @ 0.50% foliar application recorded higher seed yield (22.49 q/ha), seed germination (92.0%) and seedling vigour index-I (2878) compared to control. Among the genotypes, JS-335 exhibited significantly higher seed yield (23.45 q/ha) compared to other genotypes. Seed lots revealed significant variation on seed yield, quality and storability during pulsed electromagnetic field treatments on soybean cv. JS-93-05. Fresh seed lot recorded higher seed yield (21.70 q/ha), seed germination (91.5%) and seedling vigour index-I (3035) compared to revalidated seed lot Whereas, pulsed electromagnetic field treatment 50 Hz (F4) recorded significantly higher seed yield (22.63 q/ha), seed germination (92.5%) and seedling vigour index- I (3127) compared to control . At the end of 12 month storage period 50 Hz (F4) pulsed electromagnetic field treatment recorded the higher seed germination (49.2%) and seedling vigour index-I (716) in contrast to control Among the varieties stored, Kalitur (71.3%) and Birsa soya (70.0%) recorded germination percentage above minimum seed certification standard (70%) up to ten months of storage period compared to other varieties. Molecular screening with SSR marker revealed that, primer Satt 316 gave distinct banding pattern between good and poor longevity genotypes. From the present investigation, Kalitur, Birsa soya and JS-9305 genotypes were recognized as better storer.ennullThesis