首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Dormancy and impotency of cocklebur seeds I. CO2, C2H4 O2 and high temperature
Authors:Katoh  Hajime; Esashi  Yohji
Institution:Department of Biological Science, Tohoku University, Kawauchi Sendai 980, Japan
Abstract:High O2 tensions, CO4, C2H4 and high temperatures were effectivenot only in breaking the dormancy of cocklebur (Xanthium pennsylvanicumWallr.) seeds but also in increasing the germination potentialof the nondormant but small seeds. There were few qualitativedifferences in response to these factors between the dormantand impotent seeds. Unlike CO2, however, enriched O2 and C2H4were stimulative even at the low temperature of 13°C. Germination induced by CO2, C2H4 and high temperature treatmentswas lowered when endogenously evolved C2H4 or CO2 was removed,whereas the effect of O2 enrichment was not affected by theirremoval. CO2 and high temperatures remarkably stimulated C2H4production, whereas O2 enrichment had no such effect. C2H4 productivity was lower in the dormant than non-dormantseeds, suggesting that the after-ripening is characterized byincreasing C2H4 production. (Received August 20, 1974; )
Keywords:
本文献已被 Oxford 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号