volume 20 issue 4 (december 2000) : 234-237
LEAF AREA ESTIMATION OF FLEMINGIA SEMIALATA ROXB. BY UNEAR REGRESSION
1Division of Lac Production
Indian Lac Research Institute, Ranchi-834 OlD. India
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Agricultural Science Digest
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volume 20 issue 4 (december 2000) : 234-237
LEAF AREA ESTIMATION OF FLEMINGIA SEMIALATA ROXB. BY UNEAR REGRESSION
1Division of Lac Production
Indian Lac Research Institute, Ranchi-834 OlD. India
ABSTRACT
With a view to device simple and convenient method for nondestructive estimation of
leaf area with high accuracy, correlation and regression analysis was conducted by taking
actual leaf area by graphical method as dependent and' 10 easily accessible leaf parameters as
independent variable and also by calculating correction factors. The result indicated that all
the 10 independent variables have highly significant positive correlation, contributing significantly
to the variation recorded in the dependent variable. considering coefficient of determination
obtained in each case it can also be said that the petiole length (Xl) Cilone may
explain, towards the lower side, 61.38% while the total calculated leaf area (sum L x B of
three leaflets), to the higher side, may explC'in 99.4% of variation in the adual leaf area.
Comparative efficiency of correction factor and four most efficient RE derived for easily
accessible parameters, clearly indicated the least deviation from the actual area and estimated
area in case of RE for calculated leaf aera where as the highest in case of RE for the third
leaflet. length. Thus, two separate RE for estimation of leaf area for a single leaf and for
Ii!rger leaves sample have been proposed and discussed.
leaf area with high accuracy, correlation and regression analysis was conducted by taking
actual leaf area by graphical method as dependent and' 10 easily accessible leaf parameters as
independent variable and also by calculating correction factors. The result indicated that all
the 10 independent variables have highly significant positive correlation, contributing significantly
to the variation recorded in the dependent variable. considering coefficient of determination
obtained in each case it can also be said that the petiole length (Xl) Cilone may
explain, towards the lower side, 61.38% while the total calculated leaf area (sum L x B of
three leaflets), to the higher side, may explC'in 99.4% of variation in the adual leaf area.
Comparative efficiency of correction factor and four most efficient RE derived for easily
accessible parameters, clearly indicated the least deviation from the actual area and estimated
area in case of RE for calculated leaf aera where as the highest in case of RE for the third
leaflet. length. Thus, two separate RE for estimation of leaf area for a single leaf and for
Ii!rger leaves sample have been proposed and discussed.
KEYWORDS
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In this Article
APC
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Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
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Published In
Agricultural Science Digest