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１９９０～１９９２年对新征集到的１４３份云贵甘薯品种资源进行农艺性状、主要抗性及食用品质的评价。将云南省的４７份材料整理归并为２５份，贵州省的９６份材料整理归并为４８份。筛选出一批具有一定经济价值的优良甘薯种质。
From 1990 to 1992, 143 new cultivars of sweet and sweet potato cultivars collected from Yunnan and Guizhou were evaluated for agronomic traits, major resistances and food quality. The 47 materials in Yunnan Province are sorted and consolidated into 25, and the 96 materials in Guizhou Province are sorted and consolidated into 48. Selected a group of good sweet potato germplasm with certain economic value.