摘要
赖草(Leymus secalinus)是分布较为广泛的长根茎型禾草之一,在对天然赖草种群进行样方调查的基础上,从构件入手,研究了赖草种群花期根茎、茎、叶及花序构件的数量特征以及能量分配,并进行了相关分析,结果表明:赖草种群花期各构件生物量间的关系表现为根茎>茎>叶>花序;根茎、茎、叶、花序的表型可塑性不大,对于赖草种群来讲其表型特征是稳定的;赖草种群花期各构件间及总生物量间均呈正相关关系,在此基础上建立了赖草种群花期各构件的生物量的关系模型.
Leymus secalimus,a long-rhizome grass,is distributing widely in northwest of China.Based on the quadrat survey of its natural population,we study on the number and energy allocation among modular allocation and make a correlation analysis.The result presented that the biomass of module for flowering Stage of Leymus secalinus is rhizomesstems leafs inflorescence;The characteristic of modular phenotypes are stabilized;The relationships are positive correlationbetween each modules and total biomass of Leymus secalinus population at flowering Stage.On the basis of the above research,the biomass model of Leymus secalinus population at flowering Stage are built up.
出处
《农业科学研究》
2013年第1期8-12,18,共6页
Journal of Agricultural Sciences
关键词
赖草
构件
生物量
模型
Leymus secalinus
module
biomass
model
