期刊
GRASSLAND SCIENCE
卷 56, 期 3, 页码 127-133出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1744-697X.2010.00184.x
关键词
Grid-point plate; image analysis; multiple regression analysis; performance trial; vegetation cover
Clover biomass and its percentage are both important measurements for performance trials of clover cultivars in binary mixtures with grass species. In the present study we developed multiple regression equations for estimating clover biomass and its percentage composition in binary mixtures of white clover (Trifolium repens L., three cultivars and one breeding line) and timothy (Phleum pratense L.). Plant height, cover, cover x plant height and dry matter ratio of white clover and cutting time were considered as potential explanatory variables for the regression equation. White clover cover was measured using a grid-point plate overlaid on a digital image of vegetation photographed from the top. The technique is considered to be useful for estimating herbage biomass and its percentage of white clover in a mixture with the grass because of high accuracy and precision in estimation and reduced time and labor requirements.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据