Quantification of seed aging on seed germination properties of Wild mustard under Salinity Stress
Aging and salinity stress are main challenges towards of producing a healthy seedling. This research was conducted to investigate the effects of seed aging on the seed germination properties of Wild mustard under salinity stress condition. Experimental treatments were five levels of seed aging 0, 24, 48, 72 and 96 h and different levels of salinity stress 0, 100, 200, 300, 400 and 500 mmol. Seed germination, germination rate and seed vigor were declined at high salinity concentrations. Catalase activity and total seed protein content were decrease due to the aging. Seed protein content (1.4 mg/g fw) declined about 92% and reach to 0.1 mg/g fw after 96h of aging. Catalase activity was decrease due to aging while in contrast, peroxidase activity was higher from 0.04 to 0.11 u/ mg protein after 96 h of aging. It was observed that all fatty acids of wild mustard seed oil were changed at higher aging durations. Behenic acid (C22:0) and Erusic acid (C22:1) were 0.656 and 38.543% in noaged seeds and they increased to 0.751 and 40.186%, respectively.
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