北方农业学报 ›› 2024, Vol. 52 ›› Issue (1): 10-15.doi: 10.12190/j.issn.2096-1197.2024.01.02

• 作物栽培·作物遗传育种 • 上一篇    下一篇

海陆杂交长绒棉棉铃、纤维品质性状及相关性分析

陈旭升, 赵亮, 狄佳春   

  1. 江苏省农业科学院 经济作物研究所,江苏 南京 210014
  • 收稿日期:2023-11-15 出版日期:2024-05-17 发布日期:2024-05-17
  • 作者简介:陈旭升(1965—),男,研究员,博士,主要从事棉花遗传育种方面的研究工作。
  • 基金资助:
    国家转基因特色专用棉新品种培育子课题项目(2020ZX08005-005)

Island-upland hybrid long-staple cotton boll traits,fiber quality traits and correlation analysis

CHEN Xusheng, ZHAO Liang, DI Jiachun   

  1. Institute of Industrial Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China
  • Received:2023-11-15 Online:2024-05-17 Published:2024-05-17

摘要: 【目的】明确海陆杂交长绒棉的棉铃、纤维品质性状及相关性,为选育高产海陆杂交长绒棉提供参考依据。【方法】以自主选育的抗虫陆地棉种质系为母本、生产上推广应用的新疆长绒海岛棉品种为父本,配制海陆杂交棉新组合,分析23个海陆杂交棉组合F1代的棉铃、纤维品质性状以及相关性。【结果】23个海陆杂交棉组合F1代单铃重变幅为3.7~5.0 g,单铃重超过4.2 g的组合有12个,变异系数为9.0%;衣分变幅为20.1%~36.7%,衣分超过30.0%的组合有5个,变异系数为10.7%。不同组合F1代纤维长度变幅为34.5~38.5 mm,纤维长度在35.0 mm以上的组合有22个,变异系数为2.6%;纤维比强度变幅为34.8~41.8 cN/tex,纤维比强度超过39.0 cN/tex的组合有9个,变异系数为5.3%;马克隆值变幅为2.8~4.2,马克隆值A级的组合有10个,变异系数为11.8%。海陆杂交棉的单铃重与不孕籽率呈极显著负相关(r=-0.683**)、与每囊粒数呈极显著正相关(r=0.660**)、与每铃囊数呈显著正相关(r=0.495*);海陆杂交棉的纤维整齐度与纤维长度、纤维比强度呈极显著正相关(r=0.578**、r=0.639**),与伸长率呈显著正相关(r=0.506*);衣分与纤维长度呈显著负相关(r=-0.475*)。在23个海陆杂交棉组合中,W042×新海53号、W046×新海54号、W047×新海54号的棉铃性状与纤维品质性状已呈现同步改良。【结论】利用陆地棉与长绒海岛棉的杂交互补优势,可以实现长绒棉产量性状与纤维品质性状的同步改良。

关键词: 海陆杂交长绒棉, 棉铃重, 衣分, 纤维品质, 相关性

Abstract: 【Objective】Understand the cotton boll and fiber quality traits and their correlation of island-upland hybrid long-staple cotton to provide references for breeding high yield island-upland hybrid long-staple cotton.【Methods】New hybrid combinations of island-upland cotton were developed using self-selected insect-resistant upland cotton germplasm line as female parent,and production promoted and applied Xinjiang long-staple island cotton variety as male parent. The cotton boll traits,fiber quality traits and the correlations of the F1 of the 23 island-upland hybrid cotton combinations were analyzed. 【Results】In the 23 island-upland hybrid cotton combinations,the variation range of F1 single boll weight was 3.7-5.0 g. 12 combinations had single boll weight over 4.2 g,with a 9.0% coefficient of variation. The variation range of lint percentage was 20.1%-36.7%. 5 combinations had lint percentage over 30.0%,with a 10.7% coefficient of variation. The variation range for fiber length was 34.5-38.5 mm. 22 combinations had fiber length over 35.0 mm,with a 2.6% coefficient of variation. The variation range of fiber specific strength was 34.8-41.8 cN/tex. 9 combinations had fiber specific strength over 39.0 cN/tex,with a 5.3% coefficient of variation. The variation range of micronaire value was 2.8-4.2. There were 10 combinations with A-level micronaire value and a coefficient of variation of 11.8%. The single boll weight of the island-upland hybrid cotton was extremely significantly(r=-0.683**) negatively correlated with the sterile seed rate,extremely significantly(r=0.660**)positively correlated with seed numbers per capsule and significantly(r=0.495*) positively correlated with capsule numbers per boll. The fiber uniformity of the island-upland hybrid cotton was extremely significantly(r=0.578**,r=0.639**) positively correlated with fiber length and fiber specific strength,and significantly(r=0.506*) positively correlated with elongation rate. Lint percentage was significantly(r=-0.475*) negatively correlated with fiber length. Among 23 island-upland hybrid cotton combinations,W042 × Xinhai No. 53,W046 × Xinhai No. 54 and W047 × Xinhai No. 54 showed simultaneous improvement of cotton boll traits and fiber quality traits.【Conclusion】The simultaneous improvement of yield and fiber quality traits of long-staple cotton can be realized by utilizing the complementary heterosis crossing upland cotton with long-staple island cotton.

Key words: Island-upland hybrid long-staple cotton, Cotton boll weight, Lint percentage, Fiber quality, Correlation

中图分类号: 

  • S562