【摘要】 对3份扁蓿豆种子在老化过程中的种子活力与生理特性的变化规律进行了研究。结果表明,扁蓿豆种子的发芽势、发芽率、发芽指数、活力指数和简易活力指数,均随老化时间的延长整体上呈下降趋势;扁蓿豆种子老化6 min后,其生活力比对照高;种子浸出液电导率、丙二醛(MDA)含量和可溶性含糖量均随老化时间的延长而升高,与种子的各项活力指标呈负相关(P<0.05);来自乌兰察布市四子王旗的扁蓿豆材料生理指标与各项活力指标的相关性均达极显著水平。更多还原

【Abstract】 To study the hange of physiological character and seed vigor of 3 block of Medicago ruthenica during artificial aging course.Ger-mination potential,germination ratio,germination index,vigor index and Simple vigor index declined along with seeds aging time、Various vigor index of Medicago ruthenica seeds rose than marker,aging for 6 minutes. Conductance rate of leachate,malonyldialdehyed(MDA) content and soluble sugar content increased with aging time and was negatively correlated with various vigor indexes of seeds(P<0.05).The physiol-ogical character of Medicago ruthenica obtained from si zi wang qi was negatively correlated with various vigor indexes of seeds(P<0.01).更多还原