تاثیر پیش‌تیمارهای متفاوت بر بهبود خصوصیات جوانه‌زنی بذر زوال یافته کتان‌روغنی (توده بذرک قرمز)

Deterioration of seeds during storage is a major cause of damage to the seed. To study the effect of different pre treatments on improving germination traits of deterioration flax seed Urmia mass of red flax (Linum usitatissimum L.), a factorial experiment was conducted in a completely randomized design, with 4 replicates. The treatments consisted of three levels of seed deterioration (with average (32%), low (8%) and very low germination (4%), respectively, due to the moisture content of seeds / storage temperature (9/35, 13/25 , 17/15) as the first factor and the second factor was pre seed treatment in seven levels (untreated seeds (control), soaking the seeds in water, osmopriming with poly ethylene glycol (osmotic potential -1.5 MPa) and potassium chloride 2%, 50 mg.l-1 of gibberellin, vitamin ascorbic acid (100 ppm) and hydropriming (with moisture). The results showed that the interaction of seed deterioration and priming for germination percentage, germination rate, mean germination time, and vigor index was significant at the one percent level. The best pretreatment for improved germination traits of deterioration seeds were Osmopriming by -1.5 MPa osmotic potential and ascorbic acid (100 ppm), that caused to 50 and 44% germination increase in medium deterioration condition respectively.