The each leaf area of perennial ryegrass are more obviously influenced by the seasonal change.
黑麦草的单叶面积受季节影响较大。
Seeing from the whole evaluation period, the average green degree of Kentucky bluegrass is higher than that of tall fescue and perennial ryegrass.
从整个评定时期看，草地早熟禾的平均绿度比高羊茅和多年生黑麦草高。
The turnover of lamina tissue of perennial ryegrass was systematically studied through cutting experiment by the application of the theory and methods of the tissue turnover.
本研究应用组织转化的理论和方法，通过周割试验对多年生黑麦草叶片组织的转化进行较为深入的研究。
The turnover of lamina tissue of perennial ryegrass was systematically studied through cutting experiment by the application of the theory and methods of the tissue turnover.
本研究应用组织转化的理论和方法，通过周割试验对多年生黑麦草叶片组织的转化进行较为深入的研究。
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