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一、第二批入选的无性系试验 (一)产量在割胶头5年,所有无性系和所有试验平均每公顷年产量为1474公斤,其中以PB 235最高(1963公斤),56 A/137最低(977公斤)。PB 233、243和RRIM712等无性系也高产,它们的每公顷产量分别为1919公斤、1849公斤和
First, the second batch of selected clones (a) production in the first 5 years of cutting rubber, all clones and all the annual average yield of 1474 kg per hectare, of which PB 235 highest (1963 kg), 56 A / 137 the lowest (977 kg). Clones such as PB 233, 243 and RRIM 712 were also highly productive with a yield of 1919 kg and 1849 kg ha -1