“…It helps the researchers to understand and establish the inter-relationship among the growth of plants, production, irrigation requirement and leaf area. Meanwhile, it also effects the pesticide application rate on the plant canopy in the form of spray deposition, ground loss, drift, penetration of spray droplet and uniformity of distribution (Warman et al, 1981;Matthews, 1993;Ade, et al, 2007) [1][2][3] . Therefore, a fast and accurate measurement of the leaf area (LA) is required.…”