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
出处
《农业系统科学与综合研究》
CSCD
北大核心
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 )
