华北地区夏玉米灌浆期叶片光响应空间变化特征  

Spatial variation characteristics of leaf light response during the grain filling period of summer maize in North China

作　　者：杨丛 周青云 刘佳 廖净雯 李若欣 Yang Cong;Zhou Qingyun;Liu Jia;Liao Jingwen;Li Ruoxin(College of Water Conservancy Engineering,Tianjin Agricultural University,Tianjin 300392,China)

机构地区：[1]天津农学院水利工程学院,天津300392

出　　处：《天津农学院学报》2023年第6期69-75,共7页Journal of Tianjin Agricultural University

基　　金：国家自然科学基金(51609170);国家级大学生创新创业训练计划项目(202010061024)。

摘　　要：为了解华北地区夏玉米灌浆期叶片光响应空间变化特征,以华北地区夏玉米为研究对象,通过田间试验观测了夏玉米灌浆期不同叶位、叶片不同部位的光响应曲线,重点分析了华北地区夏玉米灌浆期叶片光合特性指标的空间变化特征。结果表明:夏玉米灌浆期不同叶位、叶片不同部位的光合特性对光合有效辐射的响应存在明显的差异,光响应模型模拟获得的光合参数在植株空间分布上差异显著。研究结果可为改善华北地区夏玉米灌浆期生长发育环境提供参考。In order to understand the spatial variation characteristics of leaf light response during the grain-filling stage of summer maize in North China,taking summer maize in North China as the research object,the light response curves of different leaf positions and different parts of the leaf during the grain filling period of summer maize were observed through field experiments.The results showed that there were significant differences in the response of photosynthetic characteristics to photosynthetically active radiation in different leaf positions and different parts of leaves during the grain filling stage of summer maize,and the photosynthetic parameters obtained by the light response model were significantly different in the spatial distribution of plants.The research results can provide reference for improving the growth and development environment of summer maize during grain-filling period in North China.

关 键 词：夏玉米 灌浆期 光响应 不同叶位 叶片不同部位 

分 类 号：S513[农业科学—作物学]