新疆农业科学 ›› 2018, Vol. 55 ›› Issue (11): 1961-1967.DOI: 10.6048/j.issn.1001-4330.2018.11.001

• 作物遗传育种·种质资源·分子生物学 •    下一篇

早熟陆地棉主要株型性状与产量的相关性

马晓梅1, 赵淑琴2, 董承光1, 周小凤1, 王新1, 李保成1   

  1. 1.农业部西北内陆区棉花生物学与遗传育种重点实验室/新疆农垦科学院棉花研究所 ,新疆石河子 832000;
    2.新疆维吾尔自治区种子管理总站,乌鲁木齐 830006
  • 收稿日期:2018-09-19 发布日期:2019-02-22
  • 通信作者: 李保成(1961-),男,研究员,研究方向为棉花栽培育种,E-mail:xjlbc@sohu.com
  • 作者简介:马晓梅(1978-),女,四川绵竹人,副研究员,硕士,研究方向为棉花育种,E-mail:maxm_09@sina.com
  • 基金资助:
    兵团重大专项“适宜机采的不同生态区棉花品种筛选与评价”(2016AA001-1);兵团育种专项“早熟机采棉新品种选育”(2016AC027)

Correlation Analyses between the Main Plant Ideotype Traits and the Yield of Early-Maturing Upland Cotton

MA Xiao-mei1, ZHAO Shu-qing2, DONG Chen-guang1, ZHOU Xiao-feng1, WANG Xin1, LI Bao-cheng1   

  1. 1.Key Laboratory of Cotton Biology and Genetic Breeding in Northwest Inland Region, Ministry of Agriculture/ Cotton Research Institute, Xinjiang Academy of Agricultural and Land Reclamation Sciences, Shihezi Xinjiang 832000,China;
    2. General Seed Management Station of Xinjiang Uygur Autonomous Region,Urumqi 830006,China
  • Received:2018-09-19 Published:2019-02-22
  • Correspondence author: LI Bao-cheng(1961-), male,native place; Henan, Researcher, research field cotton cultivation technology and.breeding, E-mail:xjlbc@sohu.com
  • Supported by:
    The Major R & D Project of Xinjiang Production and Construction Corps "Screening and Evaluation of Cotton Varieties Suitable for Mechanical Harvesting in Different Ecological Areas"(2016AA001-1); The Breeding Special Project of XPCC "Breeding of Early-Maturity and Mechanical Harvest Cotton Varieties"(2016AC027)

摘要: 【目的】分析早熟陆地棉主要株型性状与产量的相关性,为新疆早熟陆地棉品种选育提供科学依据。【方法】采用SPSS 19.0软件,对早熟陆地棉品种的籽棉产量与株型性状进行相关性分析、通径分析和逐步回归分析。通过对产量与株型性状的逐步回归分析,得出产量与株型性状之间的最优回归模型。【结果】对早熟陆地棉籽棉产量有直接作用且有极显著影响的因子(P<0.01),依次是:株高(X1)、铃数(X4)、始节位(X2),对产量(Y)的直接相关系数分别为:0.322 1、0.298 1、-0.216 2;果枝数(X3)对Y值直接作用较小,系数为0.082 04,通过其他因子对Y值的间接作用较大,简单相关系数为0.403,相关性极显著(P<0.01)。早熟陆地棉株型性状(Xi)对产量(Y)的最优回归方程:Y=173.898+2.279 X1-17.632 X2+21.795 X4。估测值与实测值之间的相关程度为0.527,决定系数R2为0.278。【结论】株高、铃数、果枝始节位对产量性状有直接作用,且作用显著;而果枝台数对产量有间接作用,且作用显著。

关键词: 早熟陆地棉; 产量; 株型; 相关性分析; 通径分析; 逐步回归分析

Abstract: 【Objective】 The purpose of this project is to provide selection basis and guidance information for early-maturing upland cotton varieties breeding in Xinjiang. 【Method】The correlation analysis, path analysis and stepwise regression analysis of seed cotton yield and plant ideotype traits of early maturity upland cotton varieties were carried out by SPSS19.0 software. Based on stepwise regression analysis of yield and plant ideotype traits, the optimal regression model between yield and plant ideotype traits was established.【Result】The results indicated that the plant height (X1),the boll number (X4) and the initial fruit branch node (X2) showed significant correlations with the seed cotton yield at the 0.01 level (P<0.01). The phenotypic correlations were 0.322,1,0.298,1 and -0.216,2,respectively. The fruit branches(X3) showed effects on the seed cotton yield indirectly by assisting other characters. The phenotypic correlations were 0.403. The optimal regression model of the plant ideotype traits (Xi) and seed cotton yield (Y) was established by the stepwise regression as Y=173.898+2.279 X1-17.632 X2+21.795 X4, The correlation between the estimated value and the measured value was 0. 527, and the coefficient of determination R2 was 0.278. 【Conclusion】Plant height,boll number and the initial node of fruit branch showed significant correlations with the seed cotton yield, while the number of fruit branches has an indirect effect on the yield, and the effect was significant.

Key words: early-maturing upland cotton; yield; the plant type traits; correlation analysis; path analysis; stepwise regression analysis

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

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