华北农学报 ›› 2008, Vol. 23 ›› Issue (1): 149-153. doi: 10.7668/hbnxb.2008.01.033

所属专题: 玉米

• 论文 • 上一篇    下一篇

密度对不同株型玉米群体结构的调控效应

郭江1,2, 郭新宇3, 郭程瑾1, 张凤路1, 赵春江3, 肖凯1   

  1. 1. 河北农业大学 农学院,河北 保定 071001;
    2. 河北北方学院,河北 张家口 075131;
    3. 北京市农林科学院,北京 100089
  • 收稿日期:2007-12-08 出版日期:2008-02-28
  • 通讯作者: 肖凯(1963-),男,河北秦皇岛人,教授,博士生导师,主要从事作物栽培及生理的研究工作。
  • 作者简介:郭江(1978-),男,河北张家口人,硕士,主要从事作物栽培的研究工作。
  • 基金资助:
    国家粮食丰产科技工程项目资助(2006BAD02A08)

The Effects of Density on Population Structure of Maize with Different Plant Types

GUO Jiang1,2, GUO Xin-yu3, GUO Cheng-jin1, ZHANG Feng-lu1, ZHAO Chun-jiang3, XIAO Kai1   

  1. 1. College of Agronomy, Hebei Agricultural University, Baoding 071001, China;
    2. Northern College of Hebei, Zhangjiakou 075131, China;
    3. Agriculture and Forestry Academy of Beijing, Beijing 100089, China
  • Received:2007-12-08 Published:2008-02-28

摘要: 不同供试品种的茎叶夹角与株型特征密切相关,随着株型紧凑型增强,该参数值增大;在生育后期,不同株型玉米品种LAI各密度下大体表现为GY115较高,ND108次之,ZD958较低。随着密度增加,各品种LAI增大,紧凑型ZD958植株下位叶片的衰老速率相对减慢。供试品种群体中、下部1 d内各测定时期光截获的数量随密度增加明显减少,不同株型品种相比减小的幅度依数值大小依次为GY115,ND108和ZD958。随密度增大单株干物重降低,但以ZD958降低幅度较小,ND108次之,GY115较大。不同株型品种产量对密度的反应不同,获得高产的适宜密度存在明显差异。

关键词: 玉米, 株型, 密度, 群体结构, 群体光分布, 产量性状

Abstract: The angles between stem and leaf was correlated with the plant type properties in maize,and increasedwith the plant type being changed to erecting.At later growth stage,the leaf area index(LAI)under different densities intested cultivars showed to be the highest in GY115,then in ND108,and the lowest in ZD958. ZD958,the cultivar witherecting plant type,had relativly low senescent rate in the lower leaves. The photon perception amount at mid2part andlower part of population were decreased obviously in one day,but that in ZD958 was significant higher than ND108,andthe latter was also significant higher than GY115. The dry weight per plant was decreased also with the increase of densi2ty,but the decrease percentage showed to be the lowest in ZD958,then in ND108 and the highest in GY115. It was foundthat the yields in different plant type cultivars had different responses to densities,and the suitable densities for the high2est yield changed a lot with the plant types.

Key words: Maize, Plant type, Density, Population structure, Photo distribution in population, Y ield traits

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引用本文

郭江, 郭新宇, 郭程瑾, 张凤路, 赵春江, 肖凯. 密度对不同株型玉米群体结构的调控效应[J]. 华北农学报, 2008, 23(1): 149-153. doi: 10.7668/hbnxb.2008.01.033.

GUO Jiang, GUO Xin-yu, GUO Cheng-jin, ZHANG Feng-lu, ZHAO Chun-jiang, XIAO Kai. The Effects of Density on Population Structure of Maize with Different Plant Types[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 149-153. doi: 10.7668/hbnxb.2008.01.033.

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