不同生境中银胶菊种群数量及其种群形成原因研究  

Study on Population Size and Occurrence Reason of Parthenium hysterophorus in Different Habitats

作　　者：黄永禄[1] 刘晓亮[1] 唐文伟[1] 曾东强[1] 

机构地区：[1]广西大学农药与环境毒理研究所,广西南宁530005

出　　处：《杂草科学》2012年第2期37-39,共3页Weed Science

基　　金：公益性行业(农业)科研专项(编号:201203098)

摘　　要：银胶菊在路边、沟渠边、荒地、林地中发生较普遍,种群数量较大,其种子多集中于表土层。农田、果园中银胶菊发生面积较小,种群数量较少,其种子多集中在表土下1.5～10 cm处。银胶菊种子在土表0～0.5 cm处出苗率较高,而埋深1.5 cm以下,种子不能发芽出土。In such habitats as roadside, ditch, waste land and forest lang, there were denser population of Parthenium hys- terophorus, and the seeds usually gathered in soil surface. However in farming land and orchards, its occurrence area and population were smaller,and the seeds were deeply buried underground 1.5 - 10 cm. Seeds buried in 1.5 - 10 cm topsoil presented a higher emergence rate of seedling. When the seeds buried deeply under 1.5 cm topsoil, the seeds germination was acturally inhibitted.

关 键 词：银胶菊 埋深 种群 

分 类 号：Q948.1[生物学—植物学]