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通过对850份甘薯地方种质资源进行抗病鉴定及品质分析,筛选出高干(干率≥30%)的资源材料71份,高干兼抗3种病害资源材料5份,高干兼抗2种病害资源材料23份,高干并抗1种病害的资源材料42份;通过对1981年以来育成的254个品种的亲本类型分析表明:85.8%的育成品种选用国内育成种(品系)作为亲本,18.5%的品种选用国外引进资源作为亲本,只有8.3%和0.78%的品种分别选用国内甘薯地方种和甘薯野生资源作为亲本。
Through the resistance identification and quality analysis of 850 sweet potato germplasm resources, 71 high-dry (dry rate≥30%) resource materials were screened, 5 high-dry and anti-3 disease resource materials, 23 kinds of disease resource materials and 42 kinds of resource materials with high dry and disease resistance. Based on the analysis of the parental types of 254 varieties bred since 1981, 85.8% of the bred varieties used the domestic bred varieties Parents, 18.5% of the species selection of imported resources as the parent, only 8.3% and 0.78% of the varieties were selected domestic sweet potato and sweet potato wild species as the parent.