Evaluation of resistance in wheat germplasm to the aphids, Sitobion avenae based on Technique for order Preference by Similarity to Ideal Solution) TOPSIS and cluster methods
African Journal of Agricultural Research
College of Plant Protection, Northwest A and F University, Yangling, Shaanxi 712100, China; College of Agronomy, Henan University of Science and Technology, Luoyang, Henan 471003, China; Department of Crops Services, Ministry of Agriculture and Food Security, Maseru 100, Lesotho, South Africa
Sitobion avenae is the dominant and destructive pest in wheat production regions in China. Therefore, breeders developed new and high resistant varieties to ensure stable yields. In this paper, thirteen comprehensive agronomic characteristics of twenty-two wheat germplasm resources were investigated, and the data for the resources collected in the latest two years were treated with Technique for Order Preference by Similarity to Ideal Solution (TOPSIS method) and cluster analysis. The priority order of alternatives ranks obtained from the TOPSIS method and aphid index analysis is the same. The order of alternatives ranks is as follows: Yumai70>Amigo>186Tm>Xiaoyan22>PI>Donghan1>98-10-35>...>Datang991>Qianjinzao. It was also found that the examined 22 wheat germplasm resources could be agglomerated into four clusters. Five good germplasm, namely 186Tm, Yumai70, AMIGO, Xiaoyan22, 98-10-35, could be used directly or as parents for breeding wheat varieties for resistance to S. avenae. Furthermore, the results showed TOPSIS analysis and cluster analysis are highly consistent with each other. But TOPSIS method is the best comprehensive method for the evaluation of resistance in wheat breeding to the aphids. © 2011 Academic Journals.
Aphididae; Sitobion avenae; Triticum aestivum