Impact of Pre-Storage Seed Treatments, Packing Materials and Storage Periods on Onion Seed Quality

Abstract

Onion seed cv. Giza 6 " Improved " was treated with priming in salicylic acid, fungicide vitavax and salicylic acid + fungicide vitavax before packing in cloth, aluminum foil and polyethylene bags for 0, 3, 6, 9 and 12 month, after treatment. Seed moisture content %, germination %, seed and seedling vigor traits and fungi infestation% were recorded after each storage period. Seed treatments maintained onion seed quality as measured by; seed germination%, tetrazolium test, seed vigor (germination% after accelerated aging test and electrical conductivity, seedling vigor (seedling length and seedling dry weight) and fungi infection% comparing untreated seeds. Type of seed packing materials significantly affected seed moisture content and quality traits of onion seed. Aluminum foil and polyethylene bags maintained onion seed at low moisture content, fungi infestation, high seed and seedling vigor comparing cloth bags. Prolong storage periods from 0 to 3, 6, 9 and 12 months decreased germination%, viable seed, accelerated aging test%, seedling vigor traits and fungi infestation%. Treating onion seed by salicylic acid solution, fungicide vitavax and salicylic acid solution+ fungicide vitavax before storage in aluminum foil or polyethylene bag maintained onion seed germination %, seed and seedling vigor comparing untreated seed stored in cloth bags. This study suggested that, onion seed should be treated by fungicide vitavax before storage in aluminum foil to maintain onion seed quality during storage and get high field emergence.

Standardization of Pre-Sowing Organic Seed Encrustation Treatments on Seedling Parameters of Chilli (Capsicum Annum L.) Under Ambient Conditions of Storage

“…Roberts (1961) said that seeds stored in ambient conditions loose their viability and vigour very fast due to changes in storage conditions of temperature and relative humidity. Using moisture proof containers to store the seeds can help in maintaining viability of the seeds in the long run (Mersal et al, 2018). For the farming community and the seed industry, comprehensive and relevant knowledge about how to store seeds with least amount of quality losses for at least one or more seasons was extremely helpful.…”