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甘蔗生产性亲本的评价是提高甘蔗新品种选育效率的关键环节,尤其是对创新性亲本的评价更为重要。文章采用灰色接近度分法、DTOPSIS分析法,对41份云瑞系列生产性创新亲本进行综合评价,结果表明:两种方法的评估值排序均超过对照种新台糖22号(ROC22,CK1)、粤糖93-159(YT93-159,CK2)的材料有27份,其中排在前8位的材料是:云瑞10-449、云瑞10-1040、云瑞10-619、云瑞10-297、云瑞10-147、云瑞10-1052、云瑞10-495、云瑞10-527,这些材料应是重点利用的亲本材料;综合评估值排序小于ROC22、大于粤糖93-159的材料有12份,其中云瑞10-595在DTOPSIS排序中未超过粤糖93-159,在灰色接近度排序中超过粤糖93-159,这些材料可作为进一步观察的材料;2种方法的综合评估值排序均小于对照种ROC22、粤糖93-159的材料有2份,可考虑淘汰。2种分析方法中排序相同和相差1位的材料共有34份,占43份参试材料(含2对照)的79.1%,排序基本一致,其中,灰色接近度的区分度是0.1304,DTOPSIS的区分度是0.6098。综合评估结果与材料表现基本一致。
The evaluation of sugarcane productive parents is a key step to improve the breeding efficiency of new sugarcane varieties, especially for the evaluation of innovative parents. In this paper, we use gray proximity method and DTOPSIS method to evaluate 41 innovation-producing parents of Yunrui Series. The results showed that the evaluation methods of both methods surpass ROC22 and CK1, There are 27 materials of YT93-159 and CK2, of which the top 8 materials are: Yunrui 10-449, Yunrui 10-1040, Yunrui 10-619 and Yunrui 10- 297, Yunrui 10-147, Yunrui 10-1052, Yunrui 10-495, Yunrui 10-527, these materials should be the key utilization of the parent material; comprehensive evaluation of the value of less than ROC22, greater than the 93-159 There are 12 materials in this study. Among them, Yunrui 10-595 did not exceed 93-159 in the DTOPSIS rankings, and 93-159 in the gray proximity rankings. These materials could be used as materials for further observation. The combination of the two methods Evaluation of the value of the order are less than the control species ROC22, Guangdong Sugar 93-159 material has 2, can be considered eliminated. There were 34 samples with the same rank and 1 rank difference in the two methods, accounting for 79.1% of the 43 reference materials (including 2 controls), and the rankings were basically the same. Among them, the discrimination degree of gray proximity was 0.1304, and the distinction of DTOPSIS The degree is 0.6098. The results of the comprehensive assessment and the material performance are basically the same.