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为了进一步探讨橡胶三合树抗寒怀能和生长特性,我们于今年三月二十一日起至四月六日止,往湛江垦区北部的新华、新时代、建设、红峰、黎明、东升、红阳、团结、红旗等九个农场,对橡胶三合树越冬寒害作了一次调查,据所掌握的资料,抗寒性能表现较强的组合有93～114/GT_1,化59～2/GT_1,化38～6/GT_1,93～114/PR107四个组合.生长较快的组合有93～114/兰科2,93～114/广潭29～2,同时也看到一些抗寒性能较差的组合:GT_1/RRIM600,GT_1/AV255等组合.通过调查我们对三合树组合主干的选择和树冠搭配一问题有比较正确的认识,具体情况总结如下:
In order to further explore the cold hardiness and growth characteristics of the rubber tree, we will conduct the research on Xinhua, New Era, Construction, Hongfeng, Dawn, Dongsheng in the northern part of Zhanjiang Reclamation from March 21 to April 6 , Hongyang, United, Hongqi and other nine farms, made a survey on the overwintering chilling injury of rubber trimming trees. According to the available data, the combinations with strong cold resistance performance were 93-114 / GT 1, 59-2 / GT_1, 38 ~ 6 / GT_1, 93 ~ 114 / PR107 four combinations.Compared with fast growing 93 ~ 114 / Orchid 2,93 ~ 114 / Guangtan 29 ~ 2, also saw some cold hardiness Poorer combinations: GT_1 / RRIM600, GT_1 / AV255, etc. Through investigation, we have a more correct understanding of the selection of the trunk of the triplet and the matching of the canopy with the following conclusions: