بهبود خصوصیات جوانه‌زنی بذر زوال یافته گیاه دارویی بالنگو (Lallemantia royleana) با استفاده از پیش‌تیمارهای متفاوت

In order to improving germination traits of deterioration Balangou seed (Lallemantia royleana) by using the different pretreatments, a factorial experiment was conducted in a completely randomized design, with 4 replicates. The treatments consisted of three levels of seed deterioration (with average (52%), low (9%) 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 ascorbic acid (100 ppm) and -1.5 MPa osmotic potential that caused to 50 and 44% germination increased in medium deterioration condition and in sever deterioration condition were increased the germination up to 25% and 20%, respectively.