Effect of seed priming with salicylic acid on germinability and seedling vigor fenugreek (Trigonella Foenum-Graecum)

Abstract

In orther to the effects of seed priming with salicylic acid (SA) on germinability and seedling vigor of fenugreek was used three salicylic priming treatments (control, 1700 and 2800 μM) and accelerated aging test for 24 and 48 hours including control with no aging at 95% relative humidity at at 45°C. It was found that aging for 48 hours without priming resulted in significant loss of mean germination percentage, seedling length vigor, seedling weight vigor, germination speed, coefficient of germination speed, mean daily germination, coefficient of germination uniformity, germination vigor, maximum mean daily germination, and germination value. But, when the aged seeds were primed with 2800 μM SA, it significantly improved these parameters so that germination percentage reached to 100% from 41%. In contrast to these germination speed were observed in unprimed aged seeds for 48 hours. Moreover, priming with 2800 μM SA of aged seeds for 48 hours increased their seedling tissue water percentage to 94.48%. Accelerated aging for 48 hours reduced seedling length and weight significantly. The highest seedling length, plumule dry weight and seedling dry weight were observed in seeds treated with 2800 μM SA.