%0 Journal Article
%A GUO Shui-liang
%A SHENG Hai-yan
%T ON INFLUENCES OF POPULATION DENSITY OF <em>PLANTAGO VIRGINICA</em> ON ITS MORPHOLOGICAL CHARACTERS
%D 2002
%R 
%J Bulletin of Botanical Research
%P 236-240
%V 22
%N 2
%X The influences of the population density of <em>Plantago virginica</em> 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(Y<sub>1</sub>)、leaf length(Y<sub>2</sub>)、leaf breadth(Y<sub>3</sub>)、fresh weight(Y<sub>4</sub>)、root weight(Y<sub>5</sub>)、spike number(Y<sub>6</sub>)、spike length(Y<sub>7</sub>)、flower number(Y<sub>8</sub>)、spike weight(Y<sub>9</sub>) and spike weight/vegetal weight(Y<sub>10</sub>) followed:Y<sub>1</sub>=22.0428-2.3022lnX, Y<sub>2</sub>=21.4185+2.1828lnX, Y<sub>3</sub>=4.9934-0.5048lnX, Y<sub>4</sub>=0.1567+699.574/X, Y<sub>5</sub>=7.7310X<sup>-0.7606</sup>, Y<sub>6</sub>=0.9019+318.886/X, Y<sub>7</sub>=2.4236+179.425/X, Y<sub>8</sub>=46.3069+6914.07/X, Y<sub>9</sub>=0.1382+15.9598/X and Y<sub>10</sub>=0.047+0.0002X. The density dependences of <em>Plantago virginica</em> and <em>Plantago asiatica</em> were also compared.
%U https://bbr.nefu.edu.cn/EN/abstract/article_2703.shtml