摘要
对17个玉米自交系四个主要生育时期的叶片色素含量和比值、比叶重及其与光合速率关系的分析表明：（1）自交系间叶绿素含量和比叶重差异较大，比值chla／b和car／chl差异较小；（2）大喇叭口期之后主要叶片的叶绿素含量历经缓增和快速下降的过程，chla／b和car／chl相对稳定，仅分别在开花期和完熟期略有升高的趋势；（3）叶绿素含量与光合速率以及car／chl与叶绿素含量分别呈显著的正、负相关关系。在探讨光合速率和叶绿素含量关系的基础上将17个自交系分为6组。并对自交系的色素特点与高光合速率的关系进行了讨论。
The content and ratio of pigment, specific leaf area and photosynthesis efficiencies of 17 corn inbred lines were examined during late periods of growth and development.The results were as follow: 1. The process of pigment decreasing was slowly at first and then quickly, the chla/b and car/chl (Carotenoid/Chlorophyll) were relatively steady and arrived high value in flowering and dough stage respectively. 2. The content of chloropyll and specific leaf area were markedly different but chla/b and car/chl were not different among 17 inbred lines; 3. The content of chlorophyll and photosynthetic rate was positive correlated but car/chl was negative one. The 17 inbred lines were divided into 5 kinds of types by photosynthetic rate and content of chlorophyll. The relationship between feature of inbred lines in high photosynthesis and pigment was discussed in this paper.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1998年第1期83-87,共5页
Journal of China Agricultural University
基金
博士后基金
攀登计划专题项目
关键词
玉米
自交系
叶片色素
光合速率
Maize
Inbred lines
Leaf pigment
Photosynthesis
