Methods of Estimating the Leaf Area of Grasses from Linear Measurements

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Abstract
This paper is concerned only with estimates of leaf area obtained from linear measurements on the leaves. Past investigations on grasses and on other species are briefly reviewed. Various weighted regressions are examined, the object being to obtain a satisfactory estimate of the constant k in the prediction equation A = kLB (L = length of leaf; B = breadth at a point midway along the length; A = area). Sets of data from four different grasses are examined. The formula A = 0·9O5LB is consistent with all these data. The practical use of the technique is discussed.

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