不同育苗容器对黑荆树幼苗生长的影响  

Effects of Different Stock-grown Containers on Growth of Black Wattle (Acacia mearnsii) Seedling

作　　者：李纪元[1] 高传璧[1] 郑芳楫[1] 任华东[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所

出　　处：《林业科学研究》1993年第1期100-104,共5页Forest Research

摘　　要：黑荆树苗期生产迅速,主根发达但侧根和须根较少。在雨水较少的季节造林,裸根苗不易成活。目前,大面积造林仍以聚乙烯容器苗为主。这种容器苗的主根往往穿破薄膜袋底,起苗时容易被拉断且根土松散分离。这是影响造林成活率的主要因素。近年有报道,采用不同规格的纸容器已培育出珍稀乡土树种——桉树和相思属树种壮苗并用于造林。另外,Seedling height, collar diameter, root growth capacity, net accumulation and distribution of dry biomass, and water-content in different medium layer are related to the material, structure and volume of a seedling container. The paper container adhibitted by a thinner polythene film has the features of faster water penetration and lower capacity of water conservation as compared to the normal polythene container. The paper container specially for crops has a smaller volume and its medium goes dry easily because of faster penetration. Seedling grown in paper container for root growth capacity is similar to that grown in polythene container, but for seedling height, collar diametre and accumulation of net dry biomass, the former is superior to the latter. The inversive triangle type occurred in distribution pattern of net dry biomass of seedling grown in paper container ranked from leaf-stem-root, which improves seedling growth, and the dumbbell type in that of seedling grown in polythene container, which inhibites seedling growth of the above-ground part. The paper container could be considered as one of the new type container which is suitable to raise vigorous black wattle stocks.

关 键 词：黑荆树 容器育苗 生长反应 

分 类 号：S793.605[农业科学—林木遗传育种]