橡胶树热研7-33-97无性系轮换割制产量效应

Rubber Yield of Hevea brasiliensis Müll.Arg.Clone Reyan 7-33-97 under Change-over Tapping System

为了探寻橡胶树新品种热研7-33-97适宜的割胶制度,在充分挖掘橡胶树产胶潜力的同时又能保证胶树的安全。对热研7-33-97进行1/2阴阳线轮换与单阳线割制的比较。通过5年的田间试验观察,结果表明,在3天1刀的情况下,热研7-33-97优良无性系采用1/2阴阳线轮换割胶制度,其产量比单阳线割制增产10.6%,干含提高0.9%,死皮发病率下降0.5%。

In order to find a suitable taping system for rubber Reyan 7-33,97, change over system were studied in Fanjia Farm of Danzhou, Hainan, China. Five years results showed that, under the tapping system of （S/2; S/2U）d 3（m, m） ＋ ET 0.5%-1.0%, the yield and dry rubber content were increased by 10.58% and 0.9% separately, and with 0.5% declines of bark dryness rate.