摘要
This research investigated the effects of priming with water for 24 hours and hormone-priming with different concentrations of gibberellic acid (GA3) (50, 100, 150 mg L-1) for 24 hours and hydro and hormone priming techniques either alone or in combination on the germination, growth and biochemical properties of borage seedlings under cadmium stress conditions. The results showed that cadmium stress reduces seed germination and seedling growth indices. Seed priming led to a significant increase in the germination percentage and rate, seedling dry weight and length, seedling vigor indices, as well as the catalase and peroxidase activity of borage seedlings under both cadmium stress and non-stress conditions. Among the priming treatments, the combination of hydro and hormone priming showed the greatest effects on the improvement of germination and seedling growth under cadmium conditions, significantly greater than those achieved with the individual uses of hydro or hormone priming. At all levels of cadmium stress, utilization of combined hydro and hormone priming led to a 0.9 to 11.53-fold, and 0.95 to 2.63-fold increase in seedling dry weight as compared with the control treatment and individual use of hydro or hormone priming, respectively. The highest activity of catalase and peroxidase enzymes in borage seedlings was obtained from seeds primed with the combination of hydro priming with 150 mg L-1 GA3, which was significantly higher than those of the other treatments. Generally, at all levels of cadmium stress, combined hydro and hormone (specially 150 mg L-1 GA3) priming had the most positive effects on seed germination, growth and biochemical properties of borage seedlings.
摘要译文
本研究研究了用水灌注24小时和用不同浓度的甘油酸（Ga 3）（50,15,150mg L-1）的激素灌注24小时，单独或组合的氢气和激素引发技术镉胁迫条件下琉璃苣幼苗的发芽，生长和生化特性。结果表明，镉胁迫降低了种子萌发和幼苗生长指标。种子引发导致猪胁迫和非应力条件下的萌发百分比和速率，幼苗干重和长度，幼苗活力和长度，幼苗活力指数以及过氧化酶和过氧化物酶活性。在引发处理中，水解和激素引发的组合对镉条件下的萌发和幼苗生长的改善显示出最大的影响，显着大于随着水电或激素引发的各种用途所达到的培养基。在各种水平的镉胁迫下，与对照处理和单独使用水电或激素引发相比，幼苗干重的增加0.9〜11.53倍，同比增加0.9至11.53倍，增加0.95至2.63倍。 。从用150mg L-1 Ga 3的水合灌注组合的种子获得硼砂幼苗中的最高活性和过氧化物酶的最高活性，其显着高于其他治疗的种子。通常，在各种水平的镉胁迫下，组合的Hydro和激素（特别是150mg L-1 Ga 3）灌注对琉璃苣幼苗的种子萌发，生长和生化特性具有最正效作用。
Sheikhzadeh; Parisa[1];Zare; Nasser[1];Mahmoudi; Fatemeh[1]. The synergistic effects of hydro and hormone priming on seed germination, antioxidant activity and cadmium tolerance...[J]. Acta Botanica Croatica, 2021,80(1): 18-28