In order to investigate the effect of priming on Chickpea seed performance under drought stress, a study was carried out at the Seed Research Laboratory of Razi University, Kermanshah, Iran. The experiment was a facto...In order to investigate the effect of priming on Chickpea seed performance under drought stress, a study was carried out at the Seed Research Laboratory of Razi University, Kermanshah, Iran. The experiment was a factorial with three factors arranged in a completely randomized design with four replications. The first factor was seed priming （control （untreated）, HB-101 （Completely organic herbal extracts, derived from the bark of dark cones）, KNO3 and distilled water）, the second was drought stress levels （0.0, -0.3, -0.6, -0.9, -1.2 MPa） and the third was chickpea cultivars （Arman and Azar）. Results indicated that for both cultivars germination percentage （GP）, mean germination rate （MGR）, radicle length （RL）, plumule length （PL） and seedling dry weight （SDW） were reduced when drought stress level were increased from 0 to -!.2 Mpa, although, the cultivars showed different responses to the increased drought stress level. For all of the traits under study, the best results due to the priming treatments were obtained at the drought stress levels higher than -0.6 or -0.9 MPa. So that, at the -1.2 MPa of drought stress level, GP, MGR, and SDW were increased 53.75, 0.49, and 13.85, respectively by HB -101 when compared with control. However, seeds primed with HB-101 showed better performance than those primed with distilled water and KNO3. In general, this study revealed that seed priming especially with HB-101 improved chickpea seed performance under drought stress condition. However, the improvements were more obvious at the higher levels of drought stress.展开更多
文摘In order to investigate the effect of priming on Chickpea seed performance under drought stress, a study was carried out at the Seed Research Laboratory of Razi University, Kermanshah, Iran. The experiment was a factorial with three factors arranged in a completely randomized design with four replications. The first factor was seed priming （control （untreated）, HB-101 （Completely organic herbal extracts, derived from the bark of dark cones）, KNO3 and distilled water）, the second was drought stress levels （0.0, -0.3, -0.6, -0.9, -1.2 MPa） and the third was chickpea cultivars （Arman and Azar）. Results indicated that for both cultivars germination percentage （GP）, mean germination rate （MGR）, radicle length （RL）, plumule length （PL） and seedling dry weight （SDW） were reduced when drought stress level were increased from 0 to -!.2 Mpa, although, the cultivars showed different responses to the increased drought stress level. For all of the traits under study, the best results due to the priming treatments were obtained at the drought stress levels higher than -0.6 or -0.9 MPa. So that, at the -1.2 MPa of drought stress level, GP, MGR, and SDW were increased 53.75, 0.49, and 13.85, respectively by HB -101 when compared with control. However, seeds primed with HB-101 showed better performance than those primed with distilled water and KNO3. In general, this study revealed that seed priming especially with HB-101 improved chickpea seed performance under drought stress condition. However, the improvements were more obvious at the higher levels of drought stress.
