اثر اسید سالیسیلیک بر ترمیم پذیری بذر زوال یافته سویا

Soybean is worthy legume that it has multi important aspects in food, feed and pharmaceutical applications. One of the problem of soybean production is seed deterioration and unavailable to high vigour on planting time. In oder to investigate of salicylic acid effect on improvement of deteriorated seed of Glycine max (L.) a series of experiments were conducted using a completely randomized design with four replications. Treatments included; non deteriorated seed and natural aged seed (had kept in 25 °C for 5 years) that were treated by 0, 0.1, 0.5 and 0.9 mM concentration of salicylic acid (14 hours), seed was kept in accelerated aging conditions (40 °C and relative humidity of 100% for 24, 42 and 72 hours) then treated by 0, 0.1, 0.5 and 0.9 mM concentration of salicylic acid (14 hours) and seed that at first was treated by 0, 0.1, 0.5 and 0.9 mM concentration of salicylic acid (14 hours) and then kept in accelerated aging conditions for 24, 42 and 72 hours. Percentage and rate of germination, vigour index of 1, 2 and electrical conductivity (EC) were evaluated. The results showed that if salicylic acid was used before aging, it will be more effective than when it’s used after aging. The concentration of 0.5 mM concentration of salicylic had the most positive effect on germination indices but 0.9 mM concentration of salicylic acid had inhibitory effect on germination indices. 0.5 and 0.9 mM concentration had same effect on EC and on improvement of deteriorated seed.