湖北农业科学 ›› 2020, Vol. 59 ›› Issue (12): 17-21.doi: 10.14088/j.cnki.issn0439-8114.2020.12.004

• 育种·栽培 • 上一篇    下一篇

不同氮肥梯度下甜玉米株高和茎粗变化规律研究

张善炫, 黄影华, 张华杰, 周丽燕, 赵丽君, 夏丽莎, 洪瑞霞, 陈秋玉, 陈青春   

  1. 仲恺农业工程学院农业与生物学院, 广州 510225
  • 收稿日期:2019-08-17 发布日期:2020-08-26
  • 通讯作者: 陈青春,男,江苏连云港人,副教授,博士,主要从事作物精确管理与资源高效利用的研究,(电话)15818115414(电子信箱)chenqingchun0414@163.com。
  • 作者简介:张善炫(1993-),男,广东茂名人,在读本科生,农学专业,(电话)13602894614(电子信箱)1184696795@qq.com
  • 基金资助:
    广东省教育厅青年创新人才项目(2016KQNCX078); 广东省农业厅乡村振兴战略专项(2018LM2165); 大学生创新训练项目(201811347006); 广东省鲜食玉米遗传育种工程中心项目(粤科产学研[2016]176号)

Study on the variation of plant height and stem thickness of sweet corn under different nitrogen fertilizer levels

ZHANG Shan-xuan, HUANG Ying-hua,ZHANG Hua-jie, ZHOU Li-yan, ZHAO Li-jun, XIA Li-sha,HONG Rui-xia,CHEN Qiu-yu, CHEN Qing-chun   

  1. College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
  • Received:2019-08-17 Published:2020-08-26

摘要: 为明确不同氮肥梯度对甜玉米株高和茎粗的影响,于仲恺农业工程学院作物研究所梅田村基地开展早晚造甜玉米6个氮肥梯度小区试验,测量不同生育期的株高和茎粗。结果表明,甜玉米植株株高和茎粗均随其生育期推进而增加,并于灌浆期达到最大值;两造的自然株高和生理株高与氮肥量均呈极显著正相关关系;早造茎粗与氮肥量呈显著正相关,晚造茎粗与氮肥量呈正相关;不同生育期内,两造茎粗与自然株高或生理株高都呈正相关,其中早造的茎粗与自然株高或生理株高呈显著正相关,晚造的茎粗与自然株高或生理株高呈正相关。

关键词: 甜玉米, 氮肥, 株高, 茎粗

Abstract: In order to clarify the effects of different nitrogen fertilizer levels on plant height and stem diameter of sweet corn, six nitrogen fertilizer levels plot experiments were carried out in Meitian village base of Crop Research Institute of Zhongkai University of Agriculture and Engineering for the early-cropping and late-cropping. The plant height and stem diameter of sweet corn at different growth stages were measured. The results showed that plant height and stem diameter of sweet corn increased with the advance of its growth period, and reached the maximum at the filling stage. There was a significant positive correlation between stem diameter and nitrogen fertilizer; There was a significant positive correlation between early stem diameter and nitrogen fertilizer; Late stem diameter was positively correlated with nitrogen fertilizer; In different growth stages, stem diameter was positively correlated with natural plant height or physiological plant height, and early stem diameter was positively correlated with natural plant height or physiological plant height. Late-growing stem diameter was positively correlated with natural plant height or physiological plant height.

Key words: sweet corn, nitrogen fertilizer, plant height, stem thickness

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