Table 1: 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 thirty-three plant species, ( for each species). Observations were made on detached leaves.

S. no. Species Month of sampling Regression equation 1 Albizia lebbeck September 0.933 Albizia lebbeck September 0.859 Albizia lebbeck October 0.986 2 Anacardium occidentale August 0.995 Anacardium occidentale September 0.991 3 Anthocephalus cadamba September 0.997 4 Artocarpus heterophyllus October 0.998 Artocarpus heterophyllus October 0.993 5 Artocarpus lakoocha August 0.977 6 Bombax ceiba August 0.993 Bombax ceiba October 0.996 7 Buchanania lanzan August 0.998 8 Butea monosperma August 0.953 Butea monosperma October 0.998 9 Cassia fistula August 0.992 Cassia fistula September 0.997 10 Crescentia cujete September 0.998 Crescentia cujete August 0.995 11 Diospyros melanoxylon October 0.997 12 Eucalyptus globulus September 0.991 13 Ficus benghalensis September 0.997 14 Ficus carica August 0.994 15 Ficus religiosa September 0.997 Ficus religiosa October 0.997 Ficus religiosa October 0.998 16 Hibiscus rosa-sinensis October 0.995 17 Holoptelea integrifolia August 0.998 Holoptelea integrifolia October 0.998 18 Litchi chinensis August 0.995 Litchi chinensis August 0.996 Litchi chinensis October 0.993 19 Madhuca indica August 0.995 Madhuca indica October 0.998 20 Mangifera indica August 0.998 Mangifera indica October 0.996 Mangifera indica October 0.998 21 Melia azadirachta August 0.977 Melia azadirachta September 0.969 22 Morus alba August 0.996 Morus alba September 0.998 23 Polyalthia longifolia August 0.998 Polyalthia longifolia August 0.998 Polyalthia longifolia September 0.993 24 Populus alba August 0.993 25 Psidium guajava September 0.994 Psidium guajava September 0.997 26 Sapindus emarginatus August 0.997 Sapindus emarginatus September 0.989 Sapindus emarginatus September 0.997 Sapindus emarginatus September 0.998 Sapindus emarginatus August 0.992 27 Shorea robusta August 0.997 Shorea robusta October 0.998 28 Sporadic pinata August 0.995 Sporadic pinata October 0.996 29 Sterculia colorata October 0.998 Sterculia colorata August 0.998 30 Syzygium jambolanum September 0.996 Syzygium jambolanum September 0.997 Syzygium jambolanum October 0.998 31 Tectona grandis September 0.998 32 Terminalia chebula October 0.998 33 Terminalia tomentosa August 0.997 Terminalia tomentosa October 0.992

All values are significant at .