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人工加速老化对2个小麦品种发芽和种子生理生化特性的影响
Effect of Artificial Accelerated Aging of 2 Wheat Cultivars on Seed Germination and Physiological and Biochemical Characteristics
【摘要】 为探明小麦种子在种子贮藏过程中的生理生化变化的规律,采用高温高湿人工加速老化的方法,对2个小麦品种的种子在90%相对湿度和45℃条件下进行人工加速老化,处理时间分别为0、1、2 d,结果表明:豫麦57和金豫麦2号种子发芽率在经过老化处理后略有升高、种子活力呈现出先升高后降低的趋势、可溶性糖含量呈现先降低后升高的趋势、丙二醛含量呈现出先升高后降低的趋势。
【Abstract】 To make clear physiological and biochemical changes of wheat seeds in storage,2 varieties of wheat seeds were treated of artificial accelerated aging with high temperature and high humidity,i.e.,seeds were stored in 90% relative humidity and 45℃ for 0,1,2 days.The results showed that seed germination rate of’Yumai 57’and the’Jinyumai 2’increased slightly after aging treatment,seed vigor increased firstly and then decreased,the content of soluble sugar decreased and then increased,the MDA content increased firstly and then decreased.
【Key words】 Wheat seed; Artificial accelerated aging; Germination rate; Seed vigor;
- 【文献出处】 吉林农业科学 ,Journal of Jilin Agricultural Sciences , 编辑部邮箱 ,2012年05期
- 【分类号】S512.1
- 【被引频次】28
- 【下载频次】255