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大穗型高产小麦群体的光照特征和生理特性研究
引用本文:赵会杰,郭天财,刘华山,朱云集,夏国军,王永华,罗毅.大穗型高产小麦群体的光照特征和生理特性研究[J].河南农业大学学报,1999,33(2):101-105,155.
作者姓名:赵会杰  郭天财  刘华山  朱云集  夏国军  王永华  罗毅
作者单位:1. 河南农业大学农学院,河南,郑州,450002
2. 河南农业大学国家小麦工程技术研究中心,河南,郑州,450002
基金项目:国家“九五”重中之重科技攻关项目!95-001-02
摘    要:研究结果表明,随着种植密度增大,大穗型品种的群体成穗数有所增加,但单株成穗数,穗粒数和千粒重明显降低。使得种植密度过高时产量下降。其主要原因是高密度下麦苗素质变差,叶面积指数过大,群体光环境亚化,光合能力降低,衰老进程加快。

关 键 词:小麦  大穗型  群体  光照  生理特性

Influence of density on light distribution and some physiological characteristics in wheat canopy with heavy-ear cultivars
ZHAO Hui - jie, GUO Tian -cai , LIU Had - shan et al.Influence of density on light distribution and some physiological characteristics in wheat canopy with heavy-ear cultivars[J].Journal of Henan Agricultural University,1999,33(2):101-105,155.
Authors:ZHAO Hui - jie  GUO Tian -cai  LIU Had - shan
Abstract:The results of experiment with two heavy - ear cultivars indicated that,with the increase of density, the ear number per unit field field -area increased to some extent, but the ear number per plant, the seednumber per ear and the single grain weight decreased remarkably. The failure to obtain high yield when the population was too dense was due mainly to the inferior quality of seedling, the deterioration of light condition, the decline in Photosynthetic capacity and the acceleration of aging process.
Keywords:wheat  heavy-ear cultivar  canopy  light distribution  physiological characteristics
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