Applied and Natural Science Foundation
Its publication:
Journal of Applied and Natural Science
An International Journal | Print ISSN: 0974-9411 | Online ISSN: 2231-5209
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Journal of Applied and Natural Science 8 (1): 140-143 (2016)
A linear model for leaf area measurement to screen potential leaf material for herbal drug in Adhatoda vasica L.
J. V. Thaker, R. P. Kuvad and V. S. Thaker*
Centre for Advanced Studies in Plant Biotechnology and Genetic Engineering, Department of Biosciences, Saurashtra University, Rajkot- 360 005 (Gujarat), INDIA
*Corresponding author. E-mail:
Abstract : Leaf area is an important parameter in physiology and agronomy studies. Linear models for leaf area measurement are developed for plant species as a nondestructive method. The plant Adhatoda vasica L. (a medicinal plant) was selected and the leaves of this plant were used for development of linear model for leaf area using Leaf Area Meter (LAM) software. Planimetric parameters (length, length 2, width and width2) and gravimetric (dry weight and water content) parameters are considered for the development of linear model for this plant species. Single factor ANOVA and linear correlations were worked out using these parameters and leaf area. The plant was showed significant relationship with the parameters studied. The best correlation as represented by regression coefficient (R2) was used and improved R2 is worked out. It is observed that with increase in leaf area, water content is also increased and showed best correlation with the leaf area. Thus water content can be taken as a parameter for developing linear model for leaf area is concluded.

Keywords : Adhatoda vasica L., Gravimetric parameters, Leaf area, Planimetric parameters, Regression coefficient
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