摘要
采用A=KLW(A:叶面积;K:校正系数;L:叶长;W:叶宽)测定叶面积是一种简易方法,一般取K值为0.71。但不同品种叶形不一,采用同-K值误差较大。本方法通过在不同品种内,按叶片长宽比例的不同分组,分别求其K值和占总叶片数中的比率,再求出各个品种的平均K值,比原方法更为准确。
It is a simple way to measure leave area by using A= KLW(A:leave area, K:coefficient of correction, L:leave length, W:leave wide). The value of k was usually chosen to be 0.71. But it is easier to produce errors when the same k is adopted because the shape of different varieties is different. This way can get more exact leave area than the original one by classfying according to the different ratio of leave length to width in different varieties, calculating the value of k as well as the rate of constituting the total leave number and then the average value of k of different varieties.
出处
《草业科学》
CAS
CSCD
北大核心
1990年第3期60-62,共3页
Pratacultural Science
