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期 刊 ：植物遗传资源学报 2012年 13卷 2期

关键词：甘薯；特用；种质资源；鉴定评价；

Keywords:Sweetpotato, Special Utilized, Germplasm Resources, Evaluation,

摘 要 ：为丰富特用型甘薯新品种选育的亲本材料，加大特用型资源材料的鉴定评价是基础，通过对76份国际马铃薯研究中心（CIP）引进的胡萝卜素含量较高的特用型资源材料的鉴定评价，结果如下：筛选到了短蔓资源2份，干物率较对照徐薯18（简称“CK”）高的材料19份，干物率≥30%的材料3份，胡萝卜素含量≥10 mg/100 g鲜样的资源材料有19份，鲜薯产量较CK高的材料1份（440189）；通过抗病鉴定评价获得，抗黑斑病、根腐病、茎线虫病材料分别44份、10份、26份，兼抗两病材料20份，兼抗三病材料5份。

Abstract:It is basis for rich in parent materials on breeding of special utilized sweetpotato new varieties that pay attention to evaluation on special utilized sweetpotato germplasm resources. 76 Special utilized Sweetpotato germplasm with high content of carotene from CIP were evaluated, the results are as follows: 2 accessions with short-vine characteristics, 19 ones with higher dry matter rate than Xushu18 (CK), 3 ones have the dry matter content in excess of 30%, 19 ones have carotene content ≥ 10 mg/100 g fresh weight, the fresh root weight of 440189 is higher than CK. Accessions with resistance to black-rot, root rot, rot-nematode were obtained 44, 10, 26 respectively, and 20 accessions are resistant to any two diseases of black-rot, root rot, rot-nematode, 5 ones are resistant to 3 kinds of disease.

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