新疆农业科学 ›› 2019, Vol. 56 ›› Issue (8): 1428-1437.DOI: 10.6048/j.issn.1001-4330.2019.08.007

• 作物遗传育种·物质资源·分子生物学 • 上一篇    下一篇

早熟陆地棉主要性状配合力及杂种优势分析

刘丽, 孔宪辉, 王旭文, 王娟, 余渝   

  1. 新疆农垦科学院棉花研究所/农业部西北内陆区棉花生物学与遗传育种重点实验室/新疆兵团棉花遗传改良与高产栽培重点实验室,新疆石河子 832000
  • 收稿日期:2019-04-15 出版日期:2019-08-20 发布日期:2019-10-10
  • 通信作者: 余渝(1973-),男,研究员,博士,研究方向为棉花遗传育种,(E-mail)xjyuyu021@sohu.com
  • 作者简介:刘丽(1979-),女,副研究员,博士,研究方向为棉花遗传育种,(E-mail)cottonliuli@sina.com
  • 基金资助:
    国家自然科学基金“陆地棉耐旱种质资源遗传多样性与优异等位变异基因的发掘”(31560410);兵团育种专项新品种选育与种质资源创新(优质、机采杂交棉 )(2016AC027);兵团重点领域创新团队机采棉遗传育种与高效栽培创新团队(2017CB011)

Analysis of the Heterosis and Combining Ability of Main Traits for Early Maturing Upland Cotton

LIU Li, KONG Xian-hui, WANG Xu-wen, WANG Juan, YU Yu   

  1. Northwest Inland Region Key Laboratory of Cotton Biology and Genetic Breeding(Xinjiang), Ministry of Agriculture/ Key Laboratory of Genetic Improvement and High Yield/ Cotton Institute, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi Xinjiang 832000, China
  • Received:2019-04-15 Online:2019-08-20 Published:2019-10-10
  • Correspondence author: YU Yu(1973-), Male, Researcher,Doctor, Research direction: Genetic breeding of cotton,(E-mail)xjyuyu021@sohu.com
  • Supported by:
    Supported by the National Natural Science Foundation of China "Discovery of Genetic Diversity and Excellent Allelic Variant Genes of Drought-tolerant Germ Resources in Upland Cotton (Gossypium hirsutum L.)" (31560410);Earmarked Fund for Breeding Project of XPCC "Breeding of New Varieties and Innovation of Germplasm Resources (High Quality, Machine- picked Hybrid Cotton) (2016AC027); Innovation Team in Key Areas of XPCC "Genetic Breeding and High Efficiency Cultivation Innovation of Machine-picked Cotton (Gossypium hirsutum L.)" (2017CB011)

摘要: 目的】筛选新疆自育的优良亲本及强优势杂交组合,为棉花新品种选育奠定基础。【方法】选用不同来源的早熟陆地棉亲本17个,按照6×11的NCⅡ设计组配不完全双列杂交,得到66个杂交组合,通过随机区组3次重复试验,分析F1产量和纤维品质的杂种优势和配合力。【结果】17个亲本的一般配合力(GCA)和特殊配合力(SCA)存在显著或极显著差异。产量和品质性状广义遗传力和狭义遗传力大多比较低,株高广义遗传力可达74.28%,狭义遗传力达51.5%,其次为衣分和马克隆值。供试组合中以籽棉产量竞争优势、中亲优势和超亲优势最高,平均值分别为5.49%、11.77%和8.97%;与产量密切相关的果枝数、衣分、衣指等性状在中亲优势和超亲优势中都呈明显的正向优势;在竞争优势中,以果枝数、籽棉产量、衣分、百粒重、衣指和马克隆值为正向优势。产量性状GCA高的亲本是B3(23-90),B4(42-34),A4(H1-4),A6(惠远1403),A9(新农早112);品质性状GCA高的亲本是B1(125-1),B3(23-90),A5(H7-143),A8(天云1133)。【结论】通过F1代对株高、衣分和马克隆值等性状的亲本进行选择效果较好;籽棉产量的杂种优势最高;A1×B5(10-101×72-47),A3×B1(48-33×125-1),A4×B1(H1-4×125-1),A8×B1(天云1133×125-1)等组合具有较大利用潜力。

关键词: 陆地棉; 主要性状; 杂种优势; 配合力

Abstract: Objective】 Xinjiang is the largest region with the area of cotton planting in China. This study aims to screen out the excellent parents and high heterotic combination of home-bred in the hope of laying a foundation for the breeding of new cotton varieties in Xinjiang. 【Method】 17 parents of early maturing upland cotton from different sources were selected and 66 hybrid combinations were obtained according to NC II design of the incomplete diallel cross (6×11). The heterosis and combining ability of F1 yield and fiber quality were analyzed by 3 repeated experiments in random block group.【Result】 The result showed that, there were significant or extremely significant differences in general combining ability (GCA) and special combining ability (SCA) of 17 parents. Both broad sense heritability and narrow sense heritability were relatively low, but the broad sense heritability of plant height was up to 74.28%, and the narrow sense heritability was up to 51.5%, followed by the lint percentage and micronaire value. The heterosis of seed cotton yield was an average of 5.49%, 11.77% and 8.97% over competitive control, the mid-parent and high-parent, respectively. The number of fruit branches, lint percent and lint index which were related to yield traits showed obvious positive dominance in mid-parent heterosis and heterobeltiosis. At the same time, the number of fruit branches, cottonseed yield, lint percentage, 100-grain weight, lint index and micronaire value were the positive in competitive advantages. The parent with the best GCA were B3 (23-90), B4 (42-34), A4 (h1-4), A6 (Huiyuan 1403) , A9 (Xinnong early 112) in yield and B1 (125-1), B3 (23-90), A5 (h7-143) , A8 (Tianyun 1133) in quality. 【Conclusion】 It can be seen that the parents with plant height, lint percentage and micronaire value were selected by F1 generation, and the heterosis of seed cotton yield was the highest. From the character of yield and quality it can be concluded that these combinations have great utilization potential, including A1 × B5 (10-101×72-47), A3 × B1 (48-33 ×125-1), A4× B1 (H1-4× 125-1), A8×B1 (Tianyun1133 ×125-1).

Key words: upland cotton; main traits; heterosis; combining ability

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

出版单位:《新疆农业科学》编辑部
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