黄瓜的单个叶片和单株叶面积大小,是品种的重要特性。测定叶面积,对于计算叶面积系数、光合生产率、光能利用率都是不可缺少的。采用求积仪法或方格法,都必须先把叶片的轮廓画在纸上或方格纸上,费时费事,若大量测定叶面积是难以办到的。采用重量法测 Cucumber single leaves and leaf size per plant, is an important feature of the species. Determination of leaf area, for the calculation of leaf area coefficient, photosynthetic productivity, light energy utilization are indispensable. Using the quadrature method or the square grid method, you must first draw the outline of the leaf on paper or squared paper, time-consuming and laborious, if a large number of leaf area measurement is difficult to do. Using gravimetric method