寒地超级稻松粳9号抽穗期冠层特性研究  

Research on canopy characteristics of heading stage about japonica super rice Songjing9 in cold region

作　　者：赵宏伟[1] 高扬[1,2] 刘化龙[1] 杨亮[1] 刚爽[1] 臧家祥[1] 

机构地区：[1]东北农业大学农学院,哈尔滨150030 [2]黑龙江省农垦科学院水稻研究所,黑龙江佳木斯154007

出　　处：《东北农业大学学报》2012年第4期55-61,共7页Journal of Northeast Agricultural University

基　　金：国家科技支撑计划项目(2007BAD65B01);农业部跨越计划项目;黑龙江省科技攻关计划重大项目(GA09B102-1);东北农业大学创新团队项目(CXT001-2-1)

摘　　要：以寒地超级稻品种松粳9号和常规品种松粳6号(对照)为试材,通过密度处理构建不同稻作群体,研究了不同群体条件下超级稻与常规稻抽穗期冠层特性差异以及相互关系。结果表明,随着密度的增加,两品种产量也增加,但是过密条件下产量有所降低。高产群体抽穗期的冠层特征为:主茎具有较大的功能叶叶面积,冠层的透光率协调分布并具有相对较低的消光系数,群体内部上下分布均匀又趋于"头轻脚轻中间强"型的冠层叶面积密度。Difference and correlation in canopy characteristics of heading stage between super rice and conventional rice were studied under different populations which was constructed by the different transplanting densities using Songjing9（super rice varieties in cold region） and Songjing6（conventional varieties and CK） as experimental materials.Results showed that with the increase of transplanting density,grain yield of two varieties increased,while decreased under the conditions of high density.Population characteristics of high yield was that the main stem had large function leaf area,canopy light transmission rate coordination distribution and extinction coefficient was relatively low,groups were distributed coordinately and tended to be that canopy leaf area density was ＂light head and foot with strong central＂ type.

关 键 词：寒地粳稻 插秧密度 冠层结构 

分 类 号：S511[农业科学—作物学]