Leaf Area Estimation of Concord Grape Leaves from Simple Linear Measurements

¹ Rutgers University, Blueberry/Cranberry Research Center, Chatsworth, NJ 08019
² University of Maryland, Western Maryland Research and Education Center, Route 1, Box 49B, Keedysville, MD 21756.

Simple linear measurements of Concord grape leaves were tested for suitability as predictors of actual leaf area. True leaf areas were determined using a Li-Cor^TM leaf area meter and were examined for correlations of linear measurements of leaves and combinations of those measurements. Linear measurements were strongly correlated with actual leaf areas. Both a one- and a two-variable model were found suitable for estimating Concord leaf area: Area = -3.01 + 0.85 (W x L) (R² = 0.9841) or Area = -1.41 + 0.527(W²) + 0.254(L²) (R² = 0.9884) where W = maximum leaf width and L = length of the leaf midvein.

Key words: Concord, Vitis labruscana, leaf area

Submitted on May 12, 1987

This article has been cited by other articles:

				T. Bates Pruning Level Affects Growth and Yield of New York Concord on Two Training Systems Am. J. Enol. Vitic., September 1, 2008; 59(3): 276 - 286. [Abstract] [Full Text] [PDF]

				P. E. Blom and J. M. Tarara Rapid and Nondestructive Estimation of Leaf Area on Field-Grown Concord (Vitis labruscana) Grapevines Am. J. Enol. Vitic., September 1, 2007; 58(3): 393 - 397. [Abstract] [Full Text] [PDF]