Seed storage capability of wheat produced in different conditions of drought stress and sources of nitrogen fertilization
Article Type:
Research/Original Article (دارای رتبه معتبر)
This research was carried out to evaluate the storage of wheat seed which produced under different conditions of water deficit and application of chemical nitrogen and biological fertilizers as the first factor was water deficit in milky stage, drought stress at dough stage and without stress (control), and nitrogen fertilizer resources in Urea fertilizer 100%, 75%, 50% and 25% of plant requirement with nitroxin and nitragin. The second factor was storage conditions in 7 and 14% seed moisture within 20 and 4 °C storage, and the third factor was the storage period at 50, 100, 150 and 200 days. The results showed that the content of soluble protein and seed vigor index in seeds that received nitroxin and nitragin fertilizers with 25% urea, by increasing the water deficit, from 1.208 to 0.581 mg/g fresh weight and from 1.945 to 0.376 increased relative to 100% urea, respectively. The amount of catalase activity in seeds with drought stress and biofertilizer was higher and its activity increased at higher storage temperatures. In general, if the irrigation of the maternal plant is discontinued at the seed dough stage and the plant is fed with integrated of chemical and biological fertilizers, then the seed produced had more storage capability.
Iranian Journal of Seed Science and Technology, Volume:10 Issue: 2, 2021
15 to 35  
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