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人工老化过程中黄芩种子发芽率、酶活性等变化规律的研究
STUDIES ON THE PHYSIOLOGICAL AND BIOCHEMICAL PATTERNS OF Sosutelaria Baicalensis SEEDS DURING ARTIFICIAL AGING
【摘要】 黄芩种子在高温、高湿模拟条件下人工加速老化1~5d,随着老化时间的延长,其生活力和活力指标均发生明显变化。老化5d后,种子丧失活力,发芽率为0。在老化过程中,电导率随老化程度的增大而呈平行关系;超氧化物歧化酶、过氧化物酶的活性随种子老化程度的增加呈规律性下降,丙二醛含量随老化程度的增加而增加。
【Abstract】 The seeds of Soutellaria baicalensis was exposed to the artificial accelerated aging under 40℃ and 100% relative humidity for 1~5 days. Significant viability and vigor changes were found in the seeds with the extension of accelerated aging time. After 5 days, vigor was determined, the germination percentage declined to 0. In the process of the accelerated aging,electroconductivity appeared to be the paralleled relation with aging degree increases, and the activities of SOD and POD decreased regularly, the content of MDA increased.
【关键词】 药用植物;
黄芩;
种子;
人工老化;
种子活力;
酶活性;
膜透性;
【Key words】 medicinal plant; Soutellaria baicalensi; seed; artificial aging; seed vigor; activity of enzyme; membranous permeability;
【Key words】 medicinal plant; Soutellaria baicalensi; seed; artificial aging; seed vigor; activity of enzyme; membranous permeability;
- 【文献出处】 河北林果研究 ,Hebei Journal of Forestry and Orchard Research , 编辑部邮箱 ,2003年02期
- 【分类号】S567.23
- 【被引频次】37
- 【下载频次】325