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1引言为了满足未来天然橡胶工业的需求,目前的橡胶品种改良计划已将巴西橡胶树的野生种质列为最重要和最基本的种质材料之一。橡胶栽培种质的遗传基础极为狭窄,鉴于拓宽橡胶种质遗传基础的紧迫性及重要性,国际橡胶研究与发展委员会(IRRDB)于1981
1 Introduction In order to meet the future needs of the natural rubber industry, the current rubber variety improvement program has made the wild germplasm of the Brazilian rubber tree one of the most important and basic germplasm collections. The genetic basis of rubber cultivars is extremely narrow. In view of the urgency and importance of broadening the genetic basis of rubber germplasm, the International Committee for Research and Development in Rubber (IRRDB)