橡胶树PR107气刺微割排胶影响面胶乳生理分析  

Analysis on Physiological Parameters of Latex in Flow Area on Rubber Tree(Hevea brasiliensis) Clone PR107 by Minicut with Gaseous Stimulation

作　　者：肖再云[1,2,3] 刘实忠[1,3] 校现周[1,3] 

机构地区：[1]中国热带农业科学院橡胶研究所,儋州571737 [2]云南省热带作物科学研究所,景洪666100 [3]海南大学园艺园林学院,儋州571737

出　　处：《林业科学》2010年第9期65-72,共8页Scientia Silvae Sinicae

基　　金：科技部农业科技成果转化资金项目(2008GB23260397)

摘　　要：研究未刺激、乙烯利刺激、乙烯气体刺激胶树微割排胶影响面内不同高度部位胶乳的蔗糖、无机磷、总固形物含量和水势,并比较分析同种处理割胶前后及不同处理间割胶前后胶树胶乳中这些生理参数的差异变化,结果表明:乙烯气体刺激较其他2种处理能够较明显扩大胶树排胶影响面,有利于增加胶树胶乳产量。并提出用开割前和停排后的胶乳干含差来指导割胶生产。Minicut with gaseous ethylene stimulation is a new tapping method which can increase latex yield.To investigate the physiological mechanism,sucrose,phosphorus and total solid content,and its water potential were measured in the latex from flow area of rubber trees by micro-cut with gaseous ethylene,ethephon treatment or without treatment control,respectively.Differences of these physiological parameters were analyzed between before and after tapping in same treatment,as well as among different treatments.The results showed that the gaseous ethylene stimulation significantly promoted latex yield by increasing rubber flow area of trees.It was found that the difference of dry latex content between before tapping and after stopped flow could be used as an indicator in managing tapping production.

关 键 词：橡胶树 微割 排胶影响面 生理参数 

分 类 号：Q945.78[生物学—植物学]