Impact of physio-biochemical responses on amelioration of short-term storage and management of post-harvest seed quality of greengram (Vigna radiata)
2024
BORUAH, B | DEKA, S D | SHARMA, P | GOGOI, S | SARMAH, B | NATH, P D
The present study was carried out during winter (rabi) and rainy (kharif) seasons of 2021 and 2022 at Assam Agricultural University, Jorhat, Assam to address the significance of maintaining post-harvest seed quality and its management throughout the nation, and to promote the knowledge and create awareness among the farming communities and pulse growers at the national level in terms of the area with high rainfall and high relative humidity. The greengram [Vigna radiata (L.) R. Wilczek] variety (SGC-16) seeds were stored in 4 different types of packaging materials, viz. jute bag, polylined jute bags; HDPE (High Density Polyethylene) interwoven bags; and 700-gauze polythene bags and treated with treatment combination of emamectin benzoate (40 mg/kg) (chemical based); 5 ml/kg neem oil (plant based); 3 g/kg black pepper (recommended practise for the state); and 3 g/kg silica gel (desiccants). With an increase in storage time, a gradual decline in seed quality parameters such as viability, germination, seedling length, seedling dry weight, Seed vigour index-I, Seed vigour index-II, germination index value, field emergence, and chlorophyll content was observed. Variations for biochemical indicators of seed quality were also recorded. The seed germination above Indian Minimum Seed Certification Standard (IMSCS) level was maintained by all treatments up to 120 days of storage. However, emamectin benzoate (40 mg/kg) along with 3 g/kg of silica gel in HDPE interwoven bags found to be best in keeping seed quality standards with lowest lipid peroxidation activity (0.36 g/gm) and highest in seeds stored in jute bag (0.68 g/gm).
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