Effects of Micro-tapping with Different Concentration of Ethylene on Yield and Physiological Features of Rubber Tree(Hevea brasiliensis) Clone PR107  

橡胶树PR107不同乙烯浓度气刺微割的产量和生理效应（英文）

作　　者：仇键[1] 杨文凤[1] 吴明[1] 魏芳[1] 校现周[1] 罗世巧[1] 

机构地区：[1]农业部橡胶树生物学与遗传资源利用重点实验室/中国热带农业科学院橡胶研究所,海南儋州571737

出　　处：《Agricultural Science & Technology》2015年第5期873-876,935,共5页农业科学与技术（英文版）

基　　金：Supported by Project of National Natural Rubber Industry Technology System of China(CARS-34-GW7);Project of Agricultural Technology Extension and System Construction for Tropical Crops(13RZNJ-43);Fundamental Research Funds of Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences(1630022013023)~~

摘　　要：In this study, the rubber tree clone PR107 was selected as test material,and its yields and physiological features under micro-tapping with different concentrations of ethylene were compared. The results showed that there was no significant correlation between rubber yield and ethylene concentration applied by microtapping on PR107. Too high level of ethylene was not conducive to improvement of rubber yield. When the ethylene concentration for micro-tapping was higher than60%, physical deficiencies appeared in rubber tree PR107, the dry rubber content was reduced, and the yield was unstable. Instead, when the ethylene concentration was lower than 40%, the physiological features of PR107 were steady, the dry rubber content was stable, and the yield was relatively high.以橡胶树PR107为试验材料,比较了不同浓度乙烯气刺微割下的产量和胶乳生理变化。通过对气刺微割中不同乙烯浓度的产量和生理效应的分析,发现橡胶树PR107气刺微割的增产效应与乙烯气体浓度并不成比例,乙烯气体浓度过高达不到增产效果。采用高浓度(超过60%)乙烯刺激割胶,会造成胶树生理亏缺,干含下降,产量不稳定。采用低浓度(<40%)的乙烯刺激割胶,胶树生理性状较平稳,胶乳干含稳定,且可获得较高的产量。

关 键 词：Micro-tapping Physiological features of latex Ethylene concentration Hevea brasiliensis PR107 

分 类 号：S794.1[农业科学—林木遗传育种]