玉米不同株型耐密性的群体生理指标研究

应用生态学报 ›› 2002, Vol. ›› Issue (1): 55-59.

玉米不同株型耐密性的群体生理指标研究

薛吉全¹, 梁宗锁¹, 马国胜¹, 路海东¹, 任建宏²

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

收稿日期:2000-08-14 修回日期:2000-12-11 出版日期:2002-01-15
通讯作者: 薛吉全,男,1964年生,副研究员,主要从事玉米高产栽培生理研究,发表论文30多篇.E-mai:XJQ8127@public.xa.sn.cn
基金资助:
陕西省科委科技攻关项目(96K01G1)

Population physiological indices on density-tolerance of maize in different plant type

XUE Jiquan¹, LIANG Zongsou¹, MA Guosheng¹, LU Haidong¹, REN Jianhong²

1. Northwest Science & Technology University of Agriculture and Forestry, Yangling 712100;
2. Yulin Agricultural and Forestry College of Shaanxi Province, Yulin 719000

Received:2000-08-14 Revised:2000-12-11 Online:2002-01-15

摘要/Abstract

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.

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 CGRwere 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.

中图分类号:

S513

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, (1): 55-59.

XUE Jiquan, LIANG Zongsou, MA Guosheng, LU Haidong, REN Jianhong. Population physiological indices on density-tolerance of maize in different plant type[J]. Chinese Journal of Applied Ecology, 2002, (1): 55-59.

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