The effect of seed priming with salicylic acid,polyethylene glycol and hydropriming on improving germination of barley (Hordeum vulgare L.) deteriorated seeds

Seed storage causes deterioration and finally weakening of seed germination characteristics and seedling vigor. Seed priming is a pretreatment before seed planting, which allows the seeds to absorb water in a solution before the radicle emergence. In order to study the effect of seed priming on the reduction of barley seed deterioration, an experiment was conducted at the Campus of Agriculture and Natural Resources, Razi University, Kermanshah, Iran. The experiment was factorial based on completely randomized design with three replications. The experimental factors were three barley cultivars (Nader, Sararood, and Sahand), two seed deterioration levels (deteriorated and not deteriorated seeds) and four seed priming levels (priming with salicylic acid, polyethylene glycol, hydropriming and without priming (control)). Analysis of variance showed that the simple effects of cultivar, seed deterioration, and seed priming, as well as some of their interactions, were significant on seed germination characteristics. Seed deterioration reduced the seed germination and seedling vigor characteristics. Seeds of three barley cultivars had similar reactions to deterioration. The effect of different seed priming treatments for different cultivars was relatively similar, but for the seed deterioration levels showed different effects on the germination characteristics. In general, among different priming treatments, hydropriming had a greater effect on the seed germination properties in barley deteriorated seeds

کلیدواژه ها:

Cultivar ، Seed deterioration ، Seed pretreatment ، Hordeum vulgare