S_（3307）对苇状羊茅的生理效应研究初报  

Preliminary study on fescue physiological response to S_(3307)

作　　者：刘嘉蓉[1] 钮友民[1] 钟玮 

机构地区：[1]杭州植物园

出　　处：《浙江林业科技》1996年第5期51-55,共5页Journal of Zhejiang Forestry Science and Technology

摘　　要：苇状羊茅（Ｆｅｓｔｕｃａａｒｕｎｄｉｎａｃｅａｃｖ·＇Ｔｅｍｐｏ＇）种子经Ｓ３３０７，浸种４ｈ，发芽势、发芽率和发芽指数均下降，以４０×１０－６Ｓ３３０７处理的下降幅度最大；Ｓ３３０７浸种对苇状羊茅株高抑制极显著，但可以提高根冠比值和叶绿素含量，并减缓相对合水量在干旱胁迫时的下降速度。Seeds of fescue(Festuca arundinacea cv.'Tempo')soaked in S3307 at [0,5,10,20,40(×10-6)] for 4h,the germination energy,germination.percentage and germination index lowered with increased S3307 rate.Reduction of these germination parameters were especially pronouced at S3307 40×10-6.All seedling height was significantly inhibited with S3307 treatments.In addition,S3307 treatment promoted chlorophyll content of shoot and root/crown ratio.Under drought stress,the decline of relative water content could be retarded by S3307 treatment.

关 键 词：S3307 苇状羊茅 生理效应 植物生长延缓剂 

分 类 号：S688.401[农业科学—观赏园艺]