Abstract

Estimation of above-ground biomass of Adhatoda vasica on a fresh-weight basis has been done, using observed weight ( W 0) as dependent variable and basal radius ( p) of stem just above ground and height ( H) of plant as independent variables, through linear regression techniques. Basal radius indicated an almost linear relationship with weight, while height appeared to be a redundant factor. The best estimates were obtained using the equation W 0= bp 2 × H+ C, though reasonably accurate estimation can be done also through equation W 0= bp+ C, where C is the regression constant. Adhatoda exhibited fairly uniform distribution of moisture content along the height.

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