Kapila, R.K.Kashyap, Rohan2023-03-042023-03-042023-02-09https://krishikosh.egranth.ac.in/handle/1/5810194786Study on seed storability was carried out by packing the seeds of four soybean varieties i.e., Shivalik, Hara Soya, Palam Soya and Him Soya of Himachal Pradesh in three different packaging materials viz., Polylined Jute bags, High Density Polyethylene (HDPE) bags and Jute bags and storing them under ambient conditions (March 2021 to July 2022) following completely randomized design in three replications. The experimental material was also planted in the field during kharif 2021 following RBD in three replications to evaluate the varieties for 11 agro-morphological traits. Data recorded after bimonthly intervals over a period of 16 months revealed that most of the seed quality parameters viz., per cent germination, rate of germination, field emergence, seedling length, seedling dry weight and seed vigour indices I and II gradually declined, whereas electrical conductivity witnessed an increasing trend with the advancement of storage period. Variety Him Soya performed poorly under storage and was classified as having short seed storability (12 months), whereas Shivalik exhibited seed germination above IMSCS even after 16 months of storage and was classified as having comparatively long seed storability. Remaining 2 varieties exhibited moderate seed longevity (14 months). Among packaging material, soybean seeds stored in Jute bags performed poorly having comparatively short seed storability (12 months), whereas Polylined Jute bags maintained soybean seed germination above IMSCS even after 16 months of storage. In High Density Polyethylene bags (HDPE), soybean seeds exhibited moderate seed longevity (14 months). All four varieties were also characterized for DUS traits, which revealed 11 out of a total of 21 descriptors to be more informative in classification and identification of the four varieties under study. Field evaluation revealed that the mean sum of squares due to genotypes were significant for all agro-morphological traits studied except for harvest index. Variety Shivalik was the best performing variety for yield and related attributes. This study clearly indicated the effect of genotype and packaging material on seed longevity in soybean under ambient storage.EnglishThesis