橡胶树优良新品种云研76-398选育初报  

Preliminary Report on Breeding of New Rubber Clone Yunyan 76-398

作　　者：刘忠亮[1] 王丽华[1] 宁连云[1] 和丽岗[1] LIU Zhongliang;WANG Lihua;NING Lianyun;HE Ligang(Yunnan Institute of Tropical Crops,Jinghong 666100,China)

机构地区：[1]云南省热带作物科学研究所,云南景洪666100

出　　处：《热带农业科技》2018年第2期1-4,8,共5页Tropical Agricultural Science & Technology

基　　金：国家天然橡胶产业技术体系抗寒育种岗位(CAR-34-GW3)

摘　　要：经过12年的初级系比和19年的高级系比试验观察,橡胶树新品种云研76-398早期生长快,高级系比植后第8年,离地150 cm处平均茎围52.8 cm,为对照RRIM600的117.65%;产量高,高产遗传性状稳定;初级系比年均产干胶3.43 kg/株,为对照RRIM600的173.23%,高级系比年均产干胶4.29 kg/株,为对照RRIM600的130.88%;抗寒力较低,但与对照RRIM600差异不明显;死皮病情重于对照,属速生、高产、不耐寒、不耐刺激品种。The small-scale clone comparative trial and advanced clone comparative trial were conducted for 12 and 19 years,respectively.The results indicated that young Hevea brasiliensis clone Yunyan 76-398 grew rapidly.Its stem girth of 8-year old tree at 150 cm high above the ground averaged in 52.8 cm,which is 17.65%higher than RRIM 600's(CK)in advanced clone trial plot.Yunyan 76-398 individual produced 3.43 kg dry rubber every year,is 73.23%higher than RRIM 600's(CK)in small-scale clone trial plot.In advanced clone trial plot,the average yield of dry rubber is 4.29 kg dry per year,is 30.88%higher than RRIM 600's(CK).Its cold resistance is equivalent with RRIM 600's(CK),but the occurrence of tapping panel dryness seems more serious than control.

关 键 词：橡胶树 品种选育 云研76-398 

分 类 号：S794.1[农业科学—林木遗传育种]