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一、小麦叶面积系数的测定小麦叶面积系数,是指每亩地的绿色叶面积与土地面积的比值。现介绍两种测定方法: (一)长宽乘积法:选取有代表性的植株20一30株,量出每一叶片的长度(从叶尖到基部)及宽度(中部最宽的部位),然后按下列公式计算。单株叶面积(厘米~2)=样株各叶面积的总和/(样株数×1.2) 叶面积系数=单株叶面积×基本苗数/6666667 注:(1)1.2为调整因子,用来校正叶片长乘宽的面积与实际面积的差距。
First, the determination of wheat leaf area coefficient Wheat leaf area coefficient, refers to the ratio of green leaf area per acre to land area. We introduce two kinds of determination methods: (a) the length and width product method: Select a representative plant 20 to 30 strains, measuring the length of each leaf (from the tip to the base) and the width (the middle of the widest part) Then according to the following formula. Leaf area per plant (cm ~ 2) = Total leaf area per sample / (Sample number × 1.2) Leaf area coefficient = leaf area per plant × number of basic seedlings / 6666667 Notes: (1) 1.2 is the adjustment factor Correction of the blade length and breadth of the area and the actual area of the gap.