橡胶树热垦628品种区域试验结果

以橡胶树胶木兼用型品种作为选育种的目标，通过对海南、云南、广东3个区域试验点适应性试种的热垦628的系统观测，结果表明，热垦628生长快，优于速生品种IAN873；抗平流型寒害强，优于或相当于抗寒品种GT1，比云研77—4及IAN873略差；抗风性好，优于或相当于抗风品种PR107；白粉病抗性好，优于GT1，炭疽病的发病率较低，抗至中感；试开割时干含较高，产量优于PR107及GT1，整体表现出了速生、产量高、抗逆性好的特性及良好的适应性，是具很大推广应用价值的胶木兼优品种。

Report on Regional Trial of Hevea brasiliensis Clone Reken 628

Aiming to breed latex/timber clones, systematical observation on Reken 628 in regional trial located in Hainan, Yunna＇n and Guangdong province revealed that Reken 628 grew fast than fast growing clone IAN873,and Reken628 which followed by YITC 77-4 and IAN873 exhibited better advective cold resistance than cold-hardy clone GTi.Meanwhile this clone had both better tolerance to wind injury and powdery mildew than wind resistance clone PR107 and GT1 respectively, and had a medium tolerance to rubber tree anthracnose. Its yield had performed better than PR107 and GT1 with a high dry rubber content during test tapping and open cut production. In a word, Reken 628 showed characteristics of fast-growing ,high-yielding, good resistance and fine adaptability in regional trials, which deserved to enlarge its application and popularization.