Xinjiang Agricultural Sciences ›› 2023, Vol. 60 ›› Issue (2): 261-271.DOI: 10.6048/j.issn.1001-4330.2023.02.001

• Crop Genetics and Breeding·Cultivation Physiology·Germplasm Resources·Physiology and Biochemistry • Previous Articles     Next Articles

Heterosis Performance and Their Parental Combining Ability Analysis of F1 and F2 Hybrids of Upland Cotton at Seedling Stage

CHEN Liangliang(), ZHANG Meng, GUO Liping, QI Tingxiang, ZHANG Xuexian, TANG Huini, WANG Hailin, QIAO Xiuqin, WU Jianyong, XING Chaozhu()   

  1. State Key Laboratory of Cotton Biology/Key Laboratory of Cotton Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs / Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang Henan 455000, China
  • Received:2022-07-25 Online:2023-02-20 Published:2023-03-31
  • Correspondence author: XING Chaozhu(1967-),male,Researcher, Doctor, Research direction: The principle and utilization of cotton heterosis, (E-mail) chaozhuxing@126.com
  • Supported by:
    Central Public-interest Scientific Institution Basal Research Fund(1610162021015);National Natural Science Foundation of China(31871679);Tianshan Youth Program(2018Q010);National Key R&D Project of China(2016YFD0101400)

陆地棉杂交组合F1、F2苗期优势表现及亲本配合力分析

陈亮亮(), 张梦, 郭立平, 戚廷香, 张学贤, 唐会妮, 王海林, 乔秀琴, 吴建勇, 邢朝柱()   

  1. 中国农业科学院棉花研究所/棉花生物学国家重点实验室/农业农村部棉花生物学与遗传育种重点实验室,河南安阳 455000
  • 通讯作者: 邢朝柱(1967-),男,安徽无为人,研究员,博士生导师,研究方向为棉花遗传育种,(E-mail)chaozhuxing@126.com
  • 作者简介:陈亮亮(1996-),女,甘肃天水人,硕士研究生,研究方向为棉花遗传育种,(E-mail)cll12111721@163.com
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金(1610162021015);国家自然科学基金(31871679);天山青年计划(2018Q010);国家重点研发计划“棉花杂种优势利用技术与强优势杂交种创制”(2016YFD0101400)

Abstract:

【Objective】 The purpose of this study is to provide theoretical foundation for the selection of superior parents, hybrid combinations and F2 of cotton product application. 【Method】 Eight parents from areas of Yellow River, Yangtze River and Northwest Inland were divided into two groups of 5 or 3 respectively, and made crosses according to NCⅡ design of the incomplete diallel cross (5×3); The plant height, leaf seedling SPAD values, and photosynthesis parameters of the parental, F1, F2 and control varieties were determined under field environmental conditions. 【Result】 The results showed that, both broad sense heritability and narrow sense hetriability in plant height, SPAD, photosynthetic parameter were relatively high and some traits of F2 heritability was higher than that of F1 in seeding stage. Every trait of the parent with best general combining ability(GCA) were P1(Zhong 901), P2(ZB), P6(DT) and P7(Z98) in seeding stage. The hybrid F1 and F2 which showed better special combining ability in each character at seedling stage were combination 2(Zhong901×Z98), combination 5(ZB×Z98) and combination 7(SJ48×DT). The 15 hybrid combinations F1 and F2 showed different competitive advantages in seeding stage compared with the contol, and some combinations showed significant differences. Mostly combinations of F1 and F2 showed positive heterosis advantage with competitive advantage, the mid-parent and high-parent in plant height, SPAD value, net photosynthetic rate and stomatal conductance, but in others traits, F1 and F2 combinations showed negative heterosis advantage with mid-parent and high-parent. 【Conclusion】 In this study, based on breeding practice of hybrid cotton varieties, the heterosis performance and combining ability in different generations of traits at seedling stage are systematically analyzed. It is found that the hybrid combination composed of the male parent P7 (Z98) group performs better than other combinations in the seedling stage traits and has a greater utilization potential.

Key words: upland cotton; hybrids; seeding stage; heterosis performance; combining ability

摘要:

【目的】 筛选优异亲本和强优势杂交组合选育,为棉花F2生产应用提供理论依据。【方法】 以8个核背景不同的陆地棉材料为亲本,采用5×3的NC Ⅱ遗传交配设计,在大田环境条件下,测定亲本、F1、F2和对照品种苗期株高、叶片SPAD值和光合作用参数。【结果】 株高、SPAD值和净光合速率的广义遗传力和狭义遗传力较高,部分性状的F2遗传力高于F1。苗期各性状一般配合力好的亲本为P1(中901)、P2(ZB)、P6(大桃)和P7(Z98);杂交组合F1和F2在苗期性状(株高、SPAD值、净光合速率、气孔导度、胞间CO2浓度、蒸腾速率)中特殊配合力表现较好的为组合2(中901×Z98)、组合5(ZB×Z98)、组合7(SJ48×DT)。15个杂交组合的F1和F2在苗期各性状中较对照表现出不同的竞争优势,部分组合具有显著性差异;多数杂交组合的F1和F2在株高、SPAD值、净光合速率和气孔导度表现出正向中亲优势和超亲优势,而大多数组合F1和F2的胞间CO2浓度和蒸腾速率表现出明显的负向中亲优势和超亲优势。【结论】 在苗期性状中由父本P7(Z98)组配的杂交组合在后代表现较好,具有较大的利用潜力。

关键词: 陆地棉, 杂交种, 苗期, 优势表现, 配合力

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