90份转BT基因抗虫棉品种(系)在新疆早熟棉区的适应性评价  

Evaluation of adaptability of 90 BT transgenic insectresistant cotton varieties(lines)in early cotton areas of Xinjiang

作　　者：李颖 郭文文 李江博 曲延英[1] 陈全家[1] 郑凯[1] LI Ying;GUO Wenwen;LI Jiangbo;QU Yanying;CHEN Quanjia;ZHENG Kai(College of Agricultural Xinjiang Agricultural University/Key Laboratory of Crop Genetic Improvement and Germplasm Innovation,Urumqi 830052,China)

机构地区：[1]新疆农业大学农学院/作物遗传改良与种质创新重点实验室,乌鲁木齐830052

出　　处：《新疆农业科学》2024年第7期1561-1573,共13页Xinjiang Agricultural Sciences

基　　金：早熟抗病棉花新品种设计与培育(2023ZD04041)。

摘　　要：【目的】评价转BT基因抗虫棉品种(系)的适应性与应用价值,为棉花新品种的选育提供适合的亲本。【方法】以90份转BT基因抗虫棉为材料,研究其农艺性状和品质性状的变异情况及相关性,并以主要农艺性状和品质性状对90份转BT基因抗虫棉进行主成分和聚类分析。【结果】供试90份转BT基因抗虫棉品种(系)纤维品质、农艺性状间差异显著,其中44份转BT基因抗虫棉为早熟材料,46份转BT基因抗虫棉为中早熟材料;前5个主成分特征值均大于1,累计贡献率达71.62%,第1主成分与产量有关,第2主成分与纤维品质有关,第3主成分与植株性状有关。90份转BT基因抗虫棉划分为4个类群,第Ⅰ类群籽指性状表现好;第Ⅱ类群断裂比强度、伸长率较好;第Ⅲ类群单株铃数、铃重、衣分较高;第Ⅳ类群纤维品质较好。【结论】筛选出了G21-2、G21-14、G21-1、G21-77等综合性状优异、铃重均在5.00 g以上、衣分在42%以上的转BT基因抗虫棉品种(系)18份。【Objective】Evaluate the adaptability and application value of germplasm resources,and to provide parents for the selection and breeding of new cotton varieties.【Methods】The variation and correlation of agronomic traits and quality traits were studied by using 90 BT transgenic insect-resistant cotton as experimental materials,and principal component analysis and clustering analysis of 90 BT transgenic insect-resistant cotton were carried out with main agronomic traits and quality traits.【Results】The results of the analysis showed that there were significant differences in fiber quality and agronomic traits in the test materials.Among them,44 were converted to BT gene cotton as early maturing materials,and 46 were converted to BT gene cotton as medium and early maturing materials.The first five principal component characteristic values were greater than 1,and the cumulative contribution rate reached 71.62%,the first principal component was related to cotton yield,the second principal component was related to fiber quality,and the third principal component was related to plant traits.90 trans-BT cotton were divided into 4 groups by cluster analysis,and the sub-finger traits of group I showed good performance.Group II,the specific strength and elongation at break were good.Group III had higher boll number,boll weight and clothing score per plant.Group IV's fiber quality was better.【Conclusion】18 parts of G21-2,G21-14,G21-1,G21-77 and other boll weights are selected from 90 transgenic cotton materials,all with a weight of more than 5.00 g,clothing content of more than 42%,and excellent comprehensive properties.

关 键 词：转BT基因抗虫棉 农艺性状 适应性 陆地棉 

分 类 号：S562[农业科学—作物学] S188