Table 2: Regression equations and coefficients of determination ( ) between leaf area measured by leaf area meter ( , cm2) and that estimated by millimeter graph paper method ( , cm2) for five plant species, ( for each species). Observations were made on attached leaves.

S. no.SpeciesMonth of samplingRegression equation

1Crescentia cujeteAugust 0.998
2Hibiscus rosa-sinensisOctober 0.996
3Morus albaSeptember 0.998
4Populus albaAugust 0.998
5Psidium guajavaSeptember 0.997

All values are significant at .