棉花纤维质量指数的构建与WGT双标图分析  

Construction of cotton fiber quality index and weighted genotype by trait (WGT) biplot analysis

作　　者：许乃银[1] 王扬 王丹涛 宁贺佳 杨晓妮 乔银桃 XU Nai-Yin;WANG Yang;WANG Dan-Tao;NING He-Jia;YANG Xiao-Ni;QIAO Yin-Tao(Institute of Industrial Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,Jiangsu,China;China Fiber Quality Monitoring Center,Beijing 100007,China)

机构地区：[1]江苏省农业科学院经济作物研究所,江苏南京210014 [2]中国纤维质量监测中心,北京100007

出　　处：《作物学报》2023年第5期1262-1271,共10页Acta Agronomica Sinica

基　　金：中国纤维质量监测中心项目(ZQJ4-2021-040)资助。

摘　　要：棉花纤维质量受到多项纤维性状的共同作用和影响,科学构建纤维综合评价指数有利于客观评价棉花纤维的总体质量水平。本研究采用2019—2021年期间中国纤维质量监测中心在新疆主产棉区的棉纤维质量抽检数据构建了棉纤维质量指数模型,并采用WGT双标图方法对质量指数进行可视化分析和品种分类评价。结果表明,(1)棉纤维综合评价指数的构成因子及权重分别为纤维长度(权重为0.451)、整齐度(0.173)、比强度(0.285)、马克隆值(–0.117)和颜色级(–0.526)。(2)基于纤维品质综合评价指数(CEI)和性状协调指数(TCI)构建了纤维质量指数(FQI),并筛选出新陆中64、新陆早78和中棉113等综合纤维质量表现最好的品种,以及新陆早67、新陆早54、酒棉18号和新陆中78等综合纤维质量表现较差的品种。(3)用WGT双标图实现对纤维品质综合评价指数、性状协调指数和纤维质量指数的可视化分析。(4)采用WGT双标图分析方法将纤维质量监测抽检的52个棉花品种划分为4个特征明显的品种类型,其中, I型品种的纤维综合表现最好;II型品种综合表现较差;III型品种性状协调指数表现最好,其余性状表现差;IV型品种颜色级表现差,其余性状表现较好。本研究在对主产棉区棉花纤维品质指标广泛抽样的基础上采用逐步回归分析的方法构建了纤维综合评价指数,并结合性状协调指数建立了纤维质量指数,同时采用WGT双标图方法实现了可视化分析,可为科学制定中国棉花纤维质量指数提供理论支持,也为其他类似的品种多性状数据分析提供了应用范例。Cotton fiber quality is determined by multiple fiber traits. Construction of a cotton fiber evaluation index is important for comprehensive and objective evaluation of cotton cultivars for their fiber quality. A cotton fiber quality index model was constructed based on the cotton fiber quality monitoring data collected by the China Fiber Quality Monitoring Center in the main cotton producing regions in Xinjiang during 2019–2021, and a weighted genotype by trait(WGT) biplot method was developed for visual evaluation of cotton cultivars for their fiber quality index(FQI) and trait profile. The results showed that(1) The key traits and assigned weights were fiber length(weight = 0.451, the same below), uniformity(0.173), strength(0.285), micronaire value(–0.117) and color grade ordination(–0.526), respectively.(2) The FQI was constructed based on fiber comprehensive evaluation index(CEI) and fiber trait consistency index(TCI), and the cotton cultivars classified as having superior FQI included Xinluzhong 64, Xinluzao 78, and Zhongmian 113, while Xinluzao 67, Xinluzao 54, Jiumian 18, and Xinluzhong were identified as poor in FQI.(3) WGT biplot was developed and used to graphically display the fiber quality comprehensive evaluation index,trait consistency index, and fiber quality index.(4) 52 cotton varieties sampled in the fiber quality monitoring action were clustered into four variety type groups. Cluster I was the best in almost all fiber traits, while cluster II was the worst in most traits.Cluster III showed best performance in fiber trait consistency index, but poor in other traits or indexes. Cluster IV was high in fiber color grade but low in other aspects. The methods and results reported in this research will provide a theoretical support for the construction of nationwide cotton fiber quality index model and serve as a model for other crops kinds.

关 键 词：棉花(Gossypium hirsutum L.) 纤维质量指数 GT双标图 WGT双标图 逐步回归分析 聚类分析 

分 类 号：S562[农业科学—作物学]