Abstract:

Unit areas for keeping plant types were investigated about rubber holdings with different tapping years of 6 varieties “RY7-33-97”, “PR107”“RRIM600”,GT1,DF93-114 and INA873 under different growing environments in Hainan, Yunnan and Guangdong Provinces of China. The results showed that the proportion of plant keeping types was as following: effective tapping plant (69.5%)>tapping panel dryness and intensity tapping plant (168%)>void plant (6.4%)>stopped tapping plant from wind injury (3.5%), stopped tapping plant from cold injury(20%)>null plant (1.8%). The influencing factor of unit area effective tapping plants under different growing environments and the culture and managing improvement measures were also discussed in this paper.

Key words: rubber tree (Hevea brasiliensis), effective tapping plant, plant holding type, rubber planting type zone, stop tapping plant

摘要：

在海南、云南、广东不同植胶环境下,分别调查了热研7-33-97、PR107和RRIM600、GT1、东方93-114、INA873等橡胶树品种不同割龄胶园单位面积存株情况,结果表明,各胶园单位面积存株类型所占比重依次为：有效割胶株（69.5%）>割线干涸及产量挖潜株株（16.8%）>缺株（6.4%）>风害停割株（3.5%）>寒害停割株（2.0%）>林下株（1.8%）。对不同植胶环境下胶园单位面积有效割株的影响因素以及相应的栽培管理改进措施进行了分析探讨。

关键词: 橡胶树;有效割株;存株类型;植胶类型区;停割株