橡胶树胶木兼优无性系生长量与产量的测定与分析

对中国热带农业科学院橡胶研究所引进的胶木兼优品系和自育的新型无性系及高产对照品种RRIM600组成的15个试材从生长量和产胶量性状进行比较分析和初步评价.结果表明:15个无性系在不同月份的干胶含量和割次干胶产量分别存在极显著或显著差异,不同无性系的割次干胶产量和月产干胶量均存在较大差异,大部分材料间生长量、胶乳产量和干胶含量差异未达显著性水平,生长量与产胶量无显著性相关.而且,热试8、热试7、热试10和热研2-73这4个无性系表现出良好的胶木兼优特性.

Determination and Analysis of Growth and Yield on Latex-Timber Combined Hevea Clones

A trial containing 15 Hevea clones was comparatively analyzed and preliminarily evaluated in Rubber Research Institute of Chinese Academy of Tropical Agriculture Sciences(RRIC-CATAS).The 15 test materials were composed of both introduced and selectively bred by RRIC.The commercial clone RRIM 600 was set as control.The results showed that dry rubber content and dry rubber yield per tapping of the 15 clones in different months varied from significantly to extremely significantly.Per tapping and per month production of dry rubber of the 15 clones differed greatly.Growth,latex yield and dry rubber content of most of these clones were not significantly different.Correlation between growth and rubber yield was not significant.Four clones i.e.,TSF8,TSF7,TSF10 and CATAS2-73 exhibited good latex-timber combined character.