向日葵叶片叶绿素和比叶重及其产量研究  

Study on sunflower chlorophyll and the specific leaf weight

作　　者：徐惠风[1] 刘兴土[1] 金研铭[2] 张建华[2] 徐克章[2] 

机构地区：[1]中国科学院东北地理与农业生态研究所,长春130012 [2]吉林农业大学农学院,长春130118

出　　处：《农业系统科学与综合研究》2003年第2期97-100,共4页System Sciemces and Comprehensive Studies In Agriculture

基　　金：国家"十五"科技攻关项目 (2 0 0 1BA 5 0 8B0 5 )

摘　　要：研究了 5个不同品种向日葵叶片的叶绿素和比叶重 ,其结果表明 :向日葵叶片比叶重自苗期到成熟期呈持续增加的变化 ;叶绿素总量 (a +b)是单峰曲线变化 ,在盛花期达到最高峰。叶绿素a/b值是从苗期开始下降 ,在始花期达到最低值然后上升 ,在终花期达到最高峰。叶绿素直接影响光合物质的积累、性状形态的建成。比叶重与性状的形态建成相关性不显著。图 2 ,表5 ,参 11。Studies on chlorophyll and the specific leaf weight of five different varieties of sunflower show that :from seedling stage to mature period,the change of the specific leaf weight is continuously incre asing;the total of chlorophyll(a+b)is a single peak curve and reaches its peak at full bloom stage; a/b begins to decrease from seedling stage,reaches its lowest lever at the beginning of bloom stage,then begins to increase and reaches its peak at the end of bloom stage

关 键 词：向日葵 叶片 叶绿素 比叶重 产量 

分 类 号：S565.5[农业科学—作物学]