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1961—1987年,PR107、RRIM600、GT1和PB86等4个国外优良无性系在我国推广面积总计达592.28万亩,占全国植胶总面积的68.5％。已开割3的余万亩,平均每年比未经选择的实生树或低产品种增产干胶约10万吨,增加产值6.2亿多元,取得显著的经济和社会效益。现在PR107、RRIM600和GT1仍在各垦区(除广西植胶区外)大规模推广。本文从生长量、产量、树皮结构、光合作用产物分配率、风害、寒害、病害、死皮及胶乳特性等9个方面共21个项目对这4个无性系在我国橡胶垦区的适应性作一个较为全面的评价。
In 1961-1987, four excellent clones of PR107, RRIM600, GT1 and PB86 in China reached a total of 5,922,800 hectares in China, accounting for 68.5% of the total planting area of the country. More than 10,000 mu of cuttings have been made, an average of 100,000 tons of glues per year have been added to produce more than 620 million yuan of non-selected real-life trees or low-yielding varieties, achieving significant economic and social benefits. Now PR107, RRIM600 and GT1 are still in all reclamation areas (except Guangxi rubber planting area) large-scale promotion. In this paper, 21 projects including 9 aspects of growth, yield, bark structure, photosynthesis product distribution rate, wind damage, chilling injury, disease, dead skin and latex properties were used to evaluate the adaptability of these four clones in China’s rubber reclamation areas Make a more comprehensive evaluation.