Effect of priming and aging on Physiological, biochemical traits seed common bean (Phaseolus vulgaris L.)

In order to investigate the effect of priming and aging on Physiological and biochemical constituents of common bean seed a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili in 2020 with 3 replications treatments were aging (control and two levels of 88 and 78% germination) and priming (control, hydro-priming, priming by gibberellin (20 mg / l) and salicylic acid (100 mg / l)). In this experiment. To survey the effect of water potential on the process of water uptake by bean seeds, distilled water was used as water with zero potential. The weight of the treated seeds was measured every 15 minutes, 45 minutes, 1:30 minutes, etc. for 24 hours at 25 °C. The results showed that the highest Mean Daily Germination (MDG), Germination Rate (GR), Germination Coefficient (GC), Seedling Weight Vigor Index (SWVI) and Seedling Length Vigor Index (SLVI), Seedling Length (SL) were obtained by priming treatment with gibberellin and without aging. Aging reduced phytin stores and Water absorption, but increased priming types of measured traits. Also, Aging increased the Daily Germination Speed (DGS) and Allometry Coefficient (AC). In general, using gibberellin pre-treatment strengthened weak bean seeds physiologically and the treatment can be used to increase weak seed vigor.