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Crop Science Abstract -

An Indirect Method for Estimating Turfgrass Leaf Area Index1


This article in CS

  1. Vol. 27 No. 6, p. 1298-1301
    Received: Mar 5, 1987

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  1. D. M. Kopec,
  2. J. M. Norman,
  3. R. C. Shearman and
  4. M. P. Peterson2



Turfgrass leaf area index (LAI) determinations are time consuming, labor intensive, and usually destructive. A system was devised in this study to measure LAI with a nondestructive method. Leaf area index was estimated indirectly based on canopy attenuation of light that was transmitted from a source placed at the base of the turf canopy. This methods essentially the reverse of a procedure used for measuring sunnfleck distribution. The correlation between LAI using the indirect method and LAI measured by use of a leaf area meter was r = 0.93. Leaf area index determinations were made without destroying experimental units. This nondestructive method allows turfgrass canopy growth estimation over time using the same experimental units.

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