赵树琪 张华崇 闫振华 黄晓莉 戴宝生 李蔚

摘要：為研究因子分析法在棉花区试中应用可行性，探讨湖北省麦后棉育种发展趋势。以近年参加湖北省区试麦后棉品种为实验材料，利用因子分析法和聚类分析法对14个品种的17个性状进行分析。通过因子分析，提取6个公因子，可解释全部性状信息的92.041%。其中第一、第四公因子为品质因子，第二公因子为生育期因子，第三公因子为株型因子，第五、第六公因子为产量因子。通过计算各品种的因子得分，发现虽然不同品种因子得分有正负差异，但是均为了提高产量或者改善品质。通过聚类分析，发现14个品种可以分为4个类群，第一类群为EZ12，ZSO7，ZSO3品种，这3个品种马克隆值均较低，纤维细度较好;第二类群为GB521，冈棉11号和华棉1543品种，这3个品种早熟性、产量及纤维品质等表现较好，综合性状表现较好;第三类群为荆棉93、晶华棉116、中棉所99001和福隆棉316品种，这4个品种丰产性好，有高产潜力;第四类群为荆PC10、荆棉94、中棉所94A1822和中9705品种，这4个品种早熟性好，株型较好，纤维品质较好。综合评价认为中9705、冈棉11号、ZS03、华棉1543的早熟性好、丰产、优质，是适应在湖北麦后棉推广的品种。湖北省麦后棉育种在关注产量同时，要协调产量与早熟、产量与品质、品质与早熟之间的矛盾，同时重视抗病性、抗逆性等性状。

关键词：湖北省;麦后棉;区试;因子分析;聚类分析

中图分类号：S562.038文献标识码：A文章编号：2095-3143（2021）06-0015-08

DOl：10.3969/j.issn.2095-3143，2021，06.003

Evaluation of New Varieties of After Wheat Cotton in Hubei Province Based on Factor Analysis

Zhao Shugi， Zhang Huachong， Yan Zhenhua， Huang Xiaoli， Dai Baosheng， Li Wei

（Huanggang Academy of Agricultural Sciences. Huanggang， Hubei 438000， China

Abstract： To study the application feasibility of factor analysis method in cotton regional trials， and explore the development trend of after - wheat cotton breeding in Hubei Province. 17 traits of 14 cotton varieties were ana-lyzed by factor analysis and cluster analysis using after - wheat cotton varieties that participated in cotton region test in Hubei province recent years as experimental materials. By factor analysis， six common factors were extracted which could explain 92. 041% o of the information of all characters. The first and fourth common factors were quali-ty factors. The second common factors were growth period factors. The third common factors were plant-type fac-tors， and the fifth and sixth common factors were yield factors. By calculating the factor scores of each variety， it was found that although there were positive and negative differences in the scores of different varieties， the yield or quality could be improved. Through the cluster analysis showed that the 14 cultivars could be divided into four groups. The first group is EZ12， Zs07 and Zs03. The three cultivars had low micronaire values and good fiber fine-ness. The second group is GB521， Gangmian 11 and Huamian 1543， these varieties perform well in early maturity yield and fiber quality， and the comprehensive character performance was better. The third group is Jingmian 93 Jinghua 116， CRI 99001 and Fulong 316. These four cultivars had good yield and high yield potential. The fourth group is Jing PC10， Jingmian 94， CRI 94A1822 and Zhong9705. These varieties had earliness， short stalk and fine quality. In the comprehensive evaluation， Zhong9705， Gangmian 11， Zs03， Huamian 1543 and other varieties with earliness， high yield and fine quality were suitable for promotion in Hubei after-wheat cotton. In the breedin of after-wheat cotton in Hubei province， the contradiction between yield and early maturity， yield and quality quality and early maturity should be coordinated while paying attention to yield. At the same time， the traits such as disease resistance and adversity resistance should be paid attention to.

Key words： Hubei province; After wheat cotton; Regional trial; Factor analysis Cluster analysis

因子分析法是一种用来研究存在于同一系统中多个可观测变量之间相互关系的多元统计分析方法，广泛应用于医疗学1、地质学[2、经济发展学3等领域。……