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玉米不同株型耐密性的群体生理指标研究
引用本文:薛吉全,梁宗锁,马国胜,路海东,任建宏.玉米不同株型耐密性的群体生理指标研究[J].应用生态学报,2002,13(1):55-59.
作者姓名:薛吉全  梁宗锁  马国胜  路海东  任建宏
作者单位:1. 西北农林科技大学,杨凌,712100
2. 陕西榆林农业高等专科学校,榆林,719000
基金项目:陕西省科委科技攻关项目 ( 96K0 1 G1)
摘    要:以紧凑型和平展型玉米不同株型的玉米品种为主要研究对象,利用作物生长分析法,系统研究了不同株型玉米品种群体内光分布,物质生产诸因素(LAI、NAR和CGR)和群体库源特征等群体生理指标与品种耐密性的关系,结果表明,群体内光分布合理与否是衡量品种耐密性的重要指标,叶面积系数(LAI)、净同化率(NAR)和作物生长率(CGR)的动态发展规律是反映耐密性的重要指标,叶面积系数(LAI)、净同化率(NAR)和作物生长率(CGR)的动态发展规律是反映耐密性的本质特征,群体库源关系协调与否是鉴定品种耐密性的一个综合指标。

关 键 词:玉米  株型  耐密性  透光率  群体库源特征  生理指标
文章编号:1001-9332(2002)01-0055-05
修稿时间:2000年8月14日

Popuation physiological indices on density-tolerance of maize in different plant type.
XUE Jiquan ,LIANG Zongsou ,MA Guosheng ,LU Haidong and REN Jianhong.Popuation physiological indices on density-tolerance of maize in different plant type.[J].Chinese Journal of Applied Ecology,2002,13(1):55-59.
Authors:XUE Jiquan  LIANG Zongsou  MA Guosheng  LU Haidong and REN Jianhong
Institution:Northwest Science & Technology, University of Agriculture and Forestry, Yangling 712100.
Abstract:Taken maize in two plant types of compact-type and flat-type as research object,the relationships between density-tolerance and light distribution in population,indices of productivity(LAI,NAR,and CGR),and population sink-source were studied synthetically by means of crop growth analysis method.The results showed that light distribution in population was the chief index to measure density-tolerance of different maize varieties.The kinetic rules of LAI,NAR,and CGR were the basic feature reflecting density-tolerance.The correspondent relationship in population sink-source was a comprehensive index to appraise density-tolerance of different maize varieties
Keywords:Maize  Plant type  Density-tolerance  Light pervious percentage  Population sink-source  
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