优良品种热研8-79在云南勐腊农场试种初报  

Preliminary Trial Report on Superior Clone of Reyan 8-79 at Mengla State Farm of Yunnan Province

作　　者：高新生[1] 李维国[1] 和丽岗 张晓飞[1] 黄肖[1] 叶德林 

机构地区：[1]中国热带农业科学院橡胶研究所,海南儋州571737 [2]云南热带作物科学研究所,云南景洪666100 [3]云南勐腊农场农林水综合服务中心,云南勐腊666300

出　　处：《热带农业科学》2015年第12期35-40,共6页Chinese Journal of Tropical Agriculture

基　　金：中国热带农业科学院橡胶研究所基本科研业务费(No.1630022013001);中国热带农业科学院本级基本科研业务费(No.1630022014020);海南省星火产业带项目(No.HNXH201421)

摘　　要：对引种在勐腊农场的热研8-79试种区进行11 a的系统鉴定。结果表明:热研8-79前期生长快,年增粗达8.23 cm,优于对照;而开割后4 a的年均茎围生长4.27 cm,仍高于对照品种,且材积较高,树皮生长较快。首年一次性开割率高,早熟且单产高,第4割年即达到3.94 kg,年均株产2.16 kg,大幅高于对照品种;干含水平与PR107相当。白粉病抗性中等,但对该区域发生的阵风抗性较差,开割后与对照相比,死皮率略偏高。热研8-79在该试区整体上呈现出早熟、高产、生长较快的特性,表现出良好的适应性。鉴于热研8-79在云南勐腊农场良好的试种表现,建议在景洪地区与之相似植胶环境条件的I类植胶区扩大试种规模。Systematical observation had been carried on Reyan 8-79 during the past 11 years, and the results showed that Reyan 8-79 grew faster than the control before tapping which its girth increment can reach 8.23 cm per year, and its timber volume and bark girth grew fast either. Its initial tapping rate was high, dry rubber yield reached 3.94 kg per year in the 4^th tapping year, and its mean yield reach 2.16 kg per year per tree, which are both higher than the control clones, dry rubber content was equivalent to clone PR107. Reyan 8-79 have medium resistance to powdery mildew and relatively poor resistance to strong gust of wind, incidence of TPD was relatively higher than the control. In a word, Reyan 8-79 of Mengla trial site embodied excellent characteristics of grow-fasting, high-yielding and early maturing, therefore, this clone was suggested to enlarge its planting area in similar planting environment of Yunnan province.

关 键 词：橡胶树 优良品种 热研8-79 区域试种 

分 类 号：S794.1[农业科学—林木遗传育种]