冰草种子发育过程中活力变化的研究  

Vigour changes during seed development of Agropyron cristatum

作　　者：陈志宏[1] 韩建国[1] 秦歌菊[1] 毛培胜[1] 白春霞[1] 倪小琴[1] 

机构地区：[1]中国农业大学草地研究所农业部草地植被恢复与重建重点开放实验室,北京100094

出　　处：《草业学报》2004年第2期94-98,共5页Acta Prataculturae Sinica

基　　金：农业部948项目(202099);高等学校博士点专项科研基金资助课题(2000001906)内容。

摘　　要：在冰草(Agropyroncristatum)种子发育过程中,随着种子的发育成熟,种子含水量逐渐下降,种子的干物质不断增加,直到盛花期后第30天达到生理成熟,含水量降到25.04%,干重达到最大为1.754mg/粒。采用7种活力测定方法的研究结果表明,随着种子的发育成熟,种子活力不断增加,在盛花期后第35天,种子活力达到最高水平。Seed moisture content gradually decreased and seed dry matter increased during the seed development of Agropyron cristatum . Seed physiological maturity was achieved 30 days after peak anthesis with seed moisture content reduced to about 25.04% and dry matter reaching about 1.754 mg/seed. Seven test methods were used to study seed vigour of A. cristatum during seed development. Seed vigour continually increased with seed development, reaching maximum vigour 35 days after peak anthesis.

关 键 词：冰草 种子发育 活力变化 

分 类 号：S54[农业科学—作物学]