江汉大学学报(自然科学版) ›› 2019, Vol. 47 ›› Issue (3): 204-208.doi: 10.16389/j.cnki.cn42-1737/n.2019.03.002

• 豆类植物研究 • 上一篇    下一篇

豇豆播种期与开花期函数模型构建

康杰,张忠武*,孙信成,詹远华,杨连勇,彭元群,陈位平   

  1. 常德市农林科学研究院,湖南 常德 415000
  • 出版日期:2019-06-28 发布日期:2019-05-29
  • 通讯作者: 张忠武
  • 作者简介:康杰(1975—),男,农艺师,研究方向:蔬菜栽培与育种。
  • 基金资助:
    国家现代农业产业技术体系专项项目(CARS-23-G-31)

Function Model Construction of Sowing Date and Flowering Day in Cowpea

KANG Jie,ZHANG Zhongwu*,SUN Xincheng,ZHAN Yuanhua,YANG Lianyong,PENG Yuanqun,CHEN Weiping   

  1. Changde Agriculture and Forestry Science Academy,Changde 415000,Hunan,China
  • Online:2019-06-28 Published:2019-05-29
  • Contact: ZHANG Zhongwu

摘要: 为了便于豇豆生产者掌握豇豆最佳播种期,实现豇豆预期上市,整理了16年来16次‘早生王’豇豆的播种期与开花期数据,并进行相关及回归分析。结果表明:播种期(x)与开花期(y)的相关系数为- 0. 842,达到极显著相关水平;随着播种期推迟,豇豆开花期却缩短;播种期与开花期的关系式可表述为:y = 82. 854 - 12. 619 x + 1. 098 x2 - 0. 032 x3。该回归关系拟合优度极显著,可用于实践中根据播种期估测开花期,或根据上市期推断播种期,以指导豇豆生产。

关键词: 豇豆, 播种期, 开花期, 函数模型

Abstract: To master the suitable sowing date of cowpea for the convenience of the producers and realize the expected marketing of cowpea,we compiled the data of 16 times on the sowing date and flowering day of cowpea in 16 years to conduct their correlation and regression analysis. The results showed that the correlation coefficient of sowing date(x)and flowering day(y)was -0. 842,which reached very significant different level. Meanwhile,as the sowing date delayed,flowering day of cowpea gradually shortened. Furthermore,the model of sowing date and flowering day could be express as the following equation:y = 82. 854 - 12. 619 x + 1. 098 x2 - 0. 032 x3. In practice,the flowering day of cowpea can be estimated based on the sowing date to guide cowpea cultivation,as well as to determine the sowing date for marketing.

Key words: cowpea, sowing date, flowering day, function model

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