| 橡胶树品种云研77—2、云研77—4早期产胶特点研究 |
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| 引用本文： | 刘忠亮,张海东,李荣,和丽岗.橡胶树品种云研77—2、云研77—4早期产胶特点研究[J].云南热作科技,2012(3):1-4. |
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| 作者姓名： | 刘忠亮 张海东 李荣 和丽岗 |
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| 作者单位： | [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 |
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| 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。
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| 关 键 词： | 橡胶树 云研77—2 云研77—4 产胶特点 |
Studies on Latex Yield Dynamics of Hevea Clones Yunyan77-2 and Yunyan77-4 During Early Period |
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| LIU Zhong-liang,ZHANG Hai-dong,LI Rong,HE Li-gang.Studies on Latex Yield Dynamics of Hevea Clones Yunyan77-2 and Yunyan77-4 During Early Period[J].Journal of Yunnan Tropical Crops Science & Technology,2012(3):1-4. |
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| Authors: | LIU Zhong-liang ZHANG Hai-dong LI Rong HE Li-gang |
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| Institution: | 1. Yunnan Institute of Tropical Crops, Jinghong 666100, China; 2. Dadugang State-Farm of Jinghong, Jinghong 666104, China; 3. Mengxing State-Farm of Mengla, Mengla 666304, China |
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| Abstract: | 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. |
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| Keywords: | Hevea hrasiliensis Yunyan77-2 Yunyan77-4 latex dynamics |
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