橡胶树RRIM600不同乙烯浓度气刺微割的干胶产量和生理效应  

Effects on Yeild and Physiological Features of Micro-tapping on Rubber Tree(Hevea brasiliensis) Clone RRIM600 with Different Stimulation Concentration of Ethylene

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

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

出　　处：《热带作物学报》2014年第8期1487-1491,共5页Chinese Journal of Tropical Crops

基　　金：国家天然橡胶产业技术体系项目(No.CARS-34-GW7);中国热带农业科学院橡胶研究所基本科研业务费专项(No.1630022013023)

摘　　要：研究橡胶树RIMM600不同浓度乙烯气刺微割系列实验,结果表明:气刺微割的干胶含量与乙烯浓度呈显著负相关(R=0.962,p=0.009),但干胶增产效应与乙烯浓度并不成比例(R=0.300,p=0.624)。胶乳中蔗糖(R=0.870)和镁离子(R=0.676)含量的变化与乙烯浓度呈一定的相关性,而无机磷和硫醇含量的变化与乙烯浓度无明显相关性。综合比较不同浓度乙烯气刺微割的干胶产量和生理参数,初步认为:40%乙烯气刺微割的干胶产量高,生理状况平稳,是一种适用于橡胶树RIMM600的气刺微割的乙烯浓度。The series of experiment involv ed micro-tapping on rubber tree clone RRIM600 with different concentration of ethylene （ETC）. The results showed that the dry rubber content （DRC）of micro-tapping had significantly negative correlations with the ETC（R=0.962, p=0.009）, but no correlation was observed between the increasing yield and the ETC. The decline of sucrose（SUC, R=0.870, p=0.055） and magnesium（Mg2＋, R=0.676, p=0.210）were also related to ETC, while the changes in thiols（R-SH）and phosphorus（Pi）contents in latex didn＇t have a bearing on ETC. Based on the dry rubber yields and physiological parameters of micro-tapping with different ETC, our preliminary view is that, 40% ethylene applied in micro-tapping on RRIM600 gave higher yield and good physiological status implying physical fitness of laticifer cell, would be a practical ETC for micro-tapping on rubber tree clone RRIM600.

关 键 词：橡胶树 RIMM600 气刺微割 胶乳生理 乙烯浓度 

分 类 号：S794.1[农业科学—林木遗传育种]