橡胶树品种云研77-2、云研77-4早期产胶特点研究  

Studies on Latex Yield Dynamics of Hevea Clones Yunyan77-2 and Yunyan77-4 During Early Period

作　　者：刘忠亮[1] 张海东 李荣 和丽岗[1] 

机构地区：[1]云南省热带作物科学研究所,云南景洪666100 [2]景洪市大渡岗农场,云南景洪666104 [3]勐腊县勐醒农场,云南勐腊666304

出　　处：《热带农业科技》2012年第3期1-4,共4页Tropical Agricultural Science & Technology

摘　　要：对橡胶树高产抗寒新品种云研77-2、云研77-4早期(1-7割年)产量特性研究结果:开割后产量逐年大幅上升,产量水平高于对照品种GT1,在第4割年开始乙烯利刺激割胶后,产量大幅下降,低于对照;云研77-4产量变化幅度最大,云研77-2次之,对照GT1变幅不明显,表现出云研77-2、云研77-4早期高产,产量增幅大和不耐乙烯利刺激的产胶特点;对乙烯利刺激不同的耐受力是橡胶树品种重要的产胶特点之一。Two new rubber clones were studied to find out their latex dynamics during early tapping period （in the years of 1 to 7 after tapping）. It reveals that latex yield of both clones Yunyan77-2 and Yunyan77-4 getting increase greatly in the first three years after tapping, which is obviously higher than control. Then there is a yield decrease drastically when stimulants begin on the tree from the fourth year. During the early tapping years, clone Yunyan77-4 shows great change in latex yield, Yunyan77-2 is in sequence. Control GT1 shows no clear change. This indicated that the two recommended clones have high latex yield in the early period but have poor performance to ethylene.

关 键 词：橡胶树 云研77—2 云研77—4 产胶特点 

分 类 号：S794.1[农业科学—林木遗传育种]