北美车前(Plantago virginica)种群密度制约的统计分析

植物研究 ›› 2002, Vol. 22 ›› Issue (2): 236-240.

北美车前(Plantago virginica)种群密度制约的统计分析

郭水良, 盛海燕

浙江师范大学生命与环境科学学院, 金华 321004

收稿日期:2001-11-05 出版日期:2002-06-15 发布日期:2016-06-14
作者简介:郭水良(1964-),男,研究员,博士,主要从事植物系统分类学、生态学、资源植物学和环境科学的教学科研工作。
基金资助:
教育部"高等学校骨干教师资助计划"的经费资助。

ON INFLUENCES OF POPULATION DENSITY OF PLANTAGO VIRGINICA ON ITS MORPHOLOGICAL CHARACTERS

GUO Shui-liang, SHENG Hai-yan

College of Life and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004

Received:2001-11-05 Online:2002-06-15 Published:2016-06-14

摘要/Abstract

摘要： 本文调查了北美车前(Plantago virginica)种群密度对植株形态参数的影响。统计表明:北美车前营养生长期间,种群密度对形态参数的影响不大,在生殖生长期间,各形态参数受到种群密度较大的制约,单株叶数(Y₁)、叶长(Y₂)、叶宽(Y₃)、鲜重(Y₄)、根重(Y₅)、花穗数(Y₆)、花穗长(Y₇)、花数(Y₈)、花序重(Y₉)和花穗重/营养体(Y₁₀)与种群密度(X)存在如下关系:Y₁=22.0428-2.3022lnX、Y₂=21.4185+2.183lnX、Y₃=4.9934-0.5048lnX、Y₄=0.1567+699.574/X、Y₅=7.7310X^-0.7606、Y₆=0.9019+318.886/X、Y₇=2.4236+179.425/X、Y₈=46.3069+6914.07/X、Y₉=0.1382+15.9598/X和Y₁₀=0.047+0.0002X。文章还比较了北美车前与车前(Plantago virginica)在繁殖期的密度制约作用特点。

关键词: 北美车前, 密度制约, 形态参数

Abstract: The influences of the population density of Plantago virginica on its morphological parameters were investigated at modular level. The results showed that the correlations between the morphological parameters and the population density in the vegetal period were not obvious, while those in the reproductive period were obvious. In the reproductive period, the relationships of the population density(X) with the leaf number(Y₁)、leaf length(Y₂)、leaf breadth(Y₃)、fresh weight(Y₄)、root weight(Y₅)、spike number(Y₆)、spike length(Y₇)、flower number(Y₈)、spike weight(Y₉) and spike weight/vegetal weight(Y₁₀) followed:Y₁=22.0428-2.3022lnX, Y₂=21.4185+2.1828lnX, Y₃=4.9934-0.5048lnX, Y₄=0.1567+699.574/X, Y₅=7.7310X^-0.7606, Y₆=0.9019+318.886/X, Y₇=2.4236+179.425/X, Y₈=46.3069+6914.07/X, Y₉=0.1382+15.9598/X and Y₁₀=0.047+0.0002X. The density dependences of Plantago virginica and Plantago asiatica were also compared.

Key words: Plantago virginica, density dependence, morphological parameters

郭水良, 盛海燕. 北美车前(Plantago virginica)种群密度制约的统计分析[J]. 植物研究, 2002, 22(2): 236-240.

GUO Shui-liang, SHENG Hai-yan. ON INFLUENCES OF POPULATION DENSITY OF PLANTAGO VIRGINICA ON ITS MORPHOLOGICAL CHARACTERS[J]. Bulletin of Botanical Research, 2002, 22(2): 236-240.

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