Efficacy of dry and wet physiological treatments for the maintenance of vigour, viability and yield potential of stored mung bean seeds (vigna radiata (l.). r. wilczek)

Dry dressing treatments in harvest fresh mung bean (Vigna radiata (L.). R. Wilczek) seeds (cv. chaiti) with chemicals (viz., bleaching powder, ferulic acid, Iodinated calcium carbonate, Calcium carbonate), pharmaceutical formulations (viz., aspirin), finely powdered crude plant materials (viz., red chilli powder, amla powder ) and wet treatment (viz., soaking-drying, moist sand conditioning drying and moist sand conditioning soaking drying) effectively controlled the loss of seed deterioration after subsequent storage under ambient conditions. The field performance and productivity of dry and wet treated seeds were also significantly improved than the untreated control. Among the treatment, amla, red chilli powder and ferulic acid have shown better results in extending longevity and increasing field performance and productivity. Physiological and biochemical studies revealed that a significantly reduced leakage of electrolytes and sugar along with lower volatile aldehyde production and higher dehydrogenase enzyme activity by the dry and wet treated seeds than the untreated control after subsequent accelerated ageing. On the basis of the results, pre-storage dry treatments with amla powder @ 2g/kg of seed, red chilli powder @ 1g/kg of seed and ferulic acid @ 500mg/kg of seed may be suggested for improved storability and field performance of mung bean seeds.