北方农业学报 ›› 2024, Vol. 52 ›› Issue (5): 108-119.doi: 10.12190/j.issn.2096-1197.2024.05.11

• 土壤肥料·农业气象 • 上一篇    下一篇

基于有效积温的抗南方锈病玉米自交系叶长与叶宽动态发育模拟研究

许海涛1, 王迎晖2, 马红珍1, 许波1, 冯晓曦1, 张军刚1, 郭海斌1, 王素奇1   

  1. 1.驻马店市农业科学院/河南省玉米产业技术体系驻马店综合试验站,河南 驻马店 463000;
    2.驻马店市驿城区农产品质量安全检测中心,河南 驻马店 463000
  • 收稿日期:2024-07-15 出版日期:2024-10-20 发布日期:2025-01-14
  • 通讯作者: 王迎晖(1976—),男,高级农艺师,学士,主要从事农业技术推广工作。
  • 作者简介:许海涛(1974—),男,研究员,学士,主要从事玉米遗传育种与栽培技术研究工作。
  • 基金资助:
    河南省科技攻关项目(242102111168); 河南省玉米产业技术体系驻马店综合试验站项目(HARS-23-02-Z6); 驻马店市重大科技专项(ZMDSZDZX2023005)

Simulation research on dynamic development of leaf length and leaf width of maize inbred lines resistant to southern corn rust based on effective accumulated temperature

XU Haitao1, WANG Yinghui2, MA Hongzhen1, XU Bo1, FENG Xiaoxi1, ZHANG Jungang1, GUO Haibin1, WANG Suqi1   

  1. 1. Zhumadian Academy of Agricultral Sciences/Zhumadian Comprehensive Experimental Station of Henan Maize Industrial Technology System,Zhumadian 463000,China;
    2. Yicheng District Agricultural Product Quality and Safety Testing Center of Zhumadain,Zhumadian 463000,China
  • Received:2024-07-15 Online:2024-10-20 Published:2025-01-14

摘要: 【目的】探明基于有效积温的抗南方锈病玉米自交系叶长、叶宽动态发育模型与特征参数,以有效积温作为步长单位,定量描述叶长、叶宽的动态发育过程。【方法】以抗南方锈病玉米自交系H0836、H0841为试验材料,于2023年进行春、夏播田间试验,基于有效积温构建玉米自交系叶长、叶宽动态发育Logistic模型,通过田间实测值对模型进行检验。【结果】春、夏播玉米自交系叶长、叶宽动态发育随有效积温呈“S”形单向递增变化,基于有效积温构建的玉米自交系叶长、叶宽Logistic模型具有较好的实际生物学意义,决定系数R2分别为0.973 7~0.993 3、0.975 5~0.996 8,标准化均方根误差nRMSE分别为3.49%~9.31%、2.10%~7.58%,均小于10%,实测值均匀分布于模拟曲线两侧,且极接近于模拟曲线,达到极好预测水平。春、夏播玉米自交系叶长、叶宽速增期所需有效积温分别为218.16~302.15 ℃·d、150.95~237.07 ℃·d,达到最大生长速率所需积温分别为492.52~533.44 ℃·d、464.51~549.57 ℃·d,速增期平均生长速率分别为0.051 5~0.078 9 cm/(℃·d)和0.004 6~0.006 6 cm/(℃·d)。【结论】基于有效积温构建的抗南方锈病玉米自交系叶长、叶宽动态发育Logistic模型具有较好的预测性与解释性,以及较高的利用价值。

关键词: 抗南方锈病玉米自交系, 叶长, 叶宽, 有效积温, Logistic模型

Abstract: 【Objective】To explore the dynamic development model and characteristic parameters of leaf length and leaf width of maize inbred line resistant to southern corn rust based on effective accumulated temperature,and to quantitatively describe the dynamic development process of leaf length and leaf width by using the effective accumulated temperature as the step unit.【Methods】By using maize inbred lines H0836 and H0841 resistant to southern corn rust as experimental materials,field experiments were conducted of spring sowing and summer sowing in 2023. A Logistic model for the dynamic development of maize inbred line leaf length and leaf width was constructed based on effective accumulated temperature,and the model was tested by field measured values.【Results】The dynamic development of leaf length and leaf width of maize inbred lines planted of spring sowing and summer sowing showed a one-way increasing S-shaped trend with the effective accumulated temperature. The Logistic model of maize inbred line leaf length and leaf width based on effective accumulated temperature had the good practical biological significance,with determination coefficients R2 of 0.973 7-0.993 3 and 0.975 5-0.996 8,respectively,and the standardized root mean square errors nRMSE were 3.49%-9.31% and 2.10%-7.58%,respectively,all less than 10%. The measured values were evenly distributed on both sides of the simulated curve,and were very close to the simulated curve,reaching an excellent predictive level. The effective accumulated temperature required for the rapid increase period of leaf length and leaf width in spring sowing maize and summer sowing maize inbred lines were 218.16-302.15 ℃·d and 150.95-237.07 ℃·d,respectively. The accumulated temperature required to reach the maximum growth rate were 492.52-533.44 ℃·d and 464.51-549.57 ℃·d,respectively. The average growth rate in rapid increase period were 0.051 5-0.078 9 cm/(℃·d) and 0.004 6-0.006 6 cm/(℃·d),respectively.【Conclusion】The Logistic model has good prediction and interpretation for the dynamic development of maize inbred line leaf length and leaf width based on effective accumulated temperature,and has great utilization value.

Key words: Maize inbred line resistant to southern corn rust, Leaf length, Leaf width, Effective accumulated temperature, Logistic model

中图分类号: 

  • S513