Analysis on age structure of Zoysia japonica(Poaceae) population

编号 zgly0000314667

文献类型 期刊论文

文献题名 Analysis on age structure of Zoysia japonica(Poaceae) population

作者 WANGYan  DAIBao-qing  LIANGYong-jun  MALian-ju 

作者单位 InstituteofAppliedEcology  NaturalPreservingBureauofchangbaiMountain  AcademyofChemistryandLifeScience 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2003,14(1)

页码 64-66

年份 2003 

分类号 Q949.714.2 

关键词 结缕草  年龄结构  数量  世代方法  无性系 

文摘内容 The age-structure of natural population of Zoysia japonica in Xiuyan County of Liaoning Province was studied by generational method.The results showed that the highest tiller age class was three,but 1st age class tillers held dominant position with proportions over 95% in each month during the growing seasons.The 2nd age class and 2rd age class tillers were minority in the population.So Z.japonica population was an expanding population.The zero age class buds on the rhizomes were dominantin buds age structures.The proportion of buds to tillers on quantity in each month was about 30% to 40% and reached the highest at the end of September.The increasing of buds proportion before dormancy guaranteed the quantity of tillers in the next spring.The biomass of 1st age class tillers changed with time.The biomass kept increasing from April to July and reached the highest at the end of July and then decreased。