摘要
对1986年引进的PB235、PB260、PB310、PB217、PB255、PR261、IAN873、RRIM712等8个国外优良品种进行25a的栽培适应性研究。结果表明：1～17割年的干胶产量比对照（RRIM600）高的是PB217，单株产量为3．8kg，为对照（2．8kg）的135．71％，单位面积产量1360．5kg／hm^2，为对照（1137．0kg／hm^2）的119．7％；其余品种均比对照低。25龄树的生势比较结果显示，IAN873、PB217显著优于对照，分别为对照的115．3％、109．4％；其余品种与对照相当或低于对照。IAN873抗辐射型寒害能力强于RRIM600，但较对照GT1低，为中度抗寒品种．PR261抗寒能力强于对照GT1与云研77—4相当，其余6个品种均较对照差。
Eight Hevea brasiliensis Clones i.e. PB235, PB260, PB310, PB217, PB255, PR261, IAN873, and RRIM712 were introduced and an adaptability trial was established in Yunnan in 1986. RRIM600 was set as the control. Data collection of 17 years shows only PB217 produced more dry rubber than the control. The average yield is 3.8 kg/tree/year, or 1 360.5 kg/hm^2/year, which is 135.7%, or 119.7% of the control. The girths of IAN873 and PB217 are significantly longer than the control on the 25th year, which are 115.3% and 109.4% of RRIM600 respectively. The radiation cold resistance ability of IAN873 is higher than RRIM600, but lower than GT1. PR261 shows the best cold resistance ability.
出处
《热带作物学报》
CSCD
2011年第4期575-579,共5页
Chinese Journal of Tropical Crops
基金
国家天然橡胶产业技术体系(No.CARS-31-GW3)
关键词
橡胶树
品种
引种
鉴定
Hevea brasiliensis
Clone
Introduction
Identify
