关键词: 橡胶树;有效割株;存株类型;植胶类型区;停割株

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