甘蔗Co419创新血缘后代的DTOPSIS综合评价

摘要

The method of Dynamic Technique for Order Preference by Similarity to Ideal Solution (DTOPSIS) was used for comprehensive evaluation of 51 sugarcane cultivars including 49 innovation blood progenies produced from Co419 crosses combination, and 2 commercial varieties as CK. The results showed that stalk quantity characters of most progeny were better than that of check varieties, but sugar characters and stalk quality characters were worse than check varieties. 7 progeny were better than Co419 (CK1) in comprehensive evaluation, but inferior than Gll (CK2), and could be selected as core-progeny to go on with crossbreeding. 15 progeny were belter than CK1 in some characters, but a bit inferior than Co419 ( CK1) in comprehensive evaluation, and could be selected as alternatives to observe further.%应用DTOPSIS法对49份甘蔗Co419创新血缘后代材料和2个对照品种进行综合评价.结果表明,创新材料的蔗茎数量性状多优于对照品种,但糖分性状和蔗茎质量性状多次于对照品种.其中7份甘蔗创新材料的综合性状优于亲本对照Co419,但低于品种对照桂糖11,可作为核心后代继续进行杂交利用;另有15份甘蔗创新材料单项性状优良,综合性状稍次于亲本对照Co419,可作为备选材料进一步观察.