常温贮藏下新农1号狗牙根种子劣变的研究  

Study on seed deterioration of Xinnong No.1 Bermuda grass stored at room temperature

作　　者：李培英[1] 孙宗玖[1] 阿不来提[1] 张建春[1] 

机构地区：[1]新疆农业大学草业工程学院新疆草地资源与生态自治区重点实验室,新疆乌鲁木齐830052

出　　处：《草业科学》2007年第10期63-67,共5页Pratacultural Science

基　　金：新疆维吾尔自治区资源与生态重点实验室项目(XJDX0201-2005-04);新疆维吾尔自治区教育厅项目(XJEDU2005703);中国科技部农业科技成果转化基金(03EFN216500249)

摘　　要：对常温贮藏下新农1号狗牙根Cynodon dactyloncv.Xinnong No.1种子劣变进行研究,结果表明：随贮藏年限增加,新农1号狗牙根种子的发芽指数（GI）、发芽势（GE）、活力指数（VI）、发芽率（G）、电导率及可溶性糖均表现先逐渐增大,达到最大值时下降的趋势;经相关分析,种子发芽指数、发芽率、活力指数三者间呈显著相关,可以衡量种子的老化程度,而电导率与种子的老化程度相关不显著;综合各项指标,新农1号狗牙根的贮藏年限最好不要超出4年,以2~3年最好。Seed deterioration process of Xinnong No. 1 Bermuda grass （Cynodon dactylon） stored at room temperature was studied. The results showed that with the prolonging of storage, seed germination index,germination potential, vigor index, germination percentage, electric conductivity and soluble sugar increased to the maximum before decrease. Correlation analysis indicated that seed germination index,germination percentage and vigor index were significantly correlative and could be used to indicate seed aging. The electric conductivity had no significant correlation with seed aging. Taking all the indexes into consideration,the seed storage time of Xinnong No. 1 should not exceed 4 years and 2--3 years of storage was the best.

关 键 词：新农1号狗牙根 种子活力 电导率 可溶性糖 

分 类 号：S688.4[农业科学—观赏园艺]