Journal of Biological Sciences1727-30481812-5719Asian Network for Scientific Information10.3923/jbs.2001.951.954D.K. Biswas M.M. Haque A. Hamid M.A. Rahman 102001110A pot experiment was conducted to evaluate the gas exchange, leaf area dynamics
and dry matter accumulation of blackgram varieties namely BARI mash 3 and BINA
mash 1. The two blackgram varieties did not differ statistically in gas exchange
characteristics, leaf area and dry matter accumulation over the growth stages.
Blackgram showed highest photosynthesis rate at flowering stage, might be attributed
due to higher leaf chlorophyll, higher stomatal and mesophyll conductance and lower
intercellular CO2 concentration, but the highest respiration rate was found at pod
filling stage. Leaves of top canopy showed highest gas exchange characteristics
followed by the leaves of middle canopy and then bottom canopy. Diurnally,
photosynthesis increased gradually with increasing intensity of light and peaked at
around noon then decreases. Photosynthesis showed strong correlation with leaf area
and dry matter accumulation of blackgram.]]>Gomez, K.A. and A.A. Gomez,19842nd Edn.,Pages: 704Pages: 704Grantz, D.A., 199013667679Hassan, M.S.,1993Vigna mungo L. Hepper) in relation to morphological and physiological characters.]]>1993Hesketh, J.D., W.L. Ogren, M.E. Hageman, D.B. Peters,198122130Kubota, F. and A. Hamid, 1992Vigna radiata (L.) Wilczek and blackgram (Vigna mungo (L.) Hepper) grown in different light intensities.]]>377180Ma, B.L., M.J. Morrison and H.D. Voldeng, 19953514111414Mitra, S. and M.C. Ghildiyal,1988160303308Rahman, M.M., A.M. Ahad, A.K.M.M. Rahman, A.F.M. Maniruzzaman and K. Khan,1994Vigna mungo (L.) Hepper) under varying levels of population densities and its agronomic appraisal.]]>23155159Srinivason, P.S., R. Chandrababu, N. Natarajaritram and S.S.F. Rangaswamy, 1985Vigna radiata (L.) Wilczek) cultivars.]]>62222224Thornton, R.K. and R.L. Wample, 19806517Watanabe, I. and K. Tabuchi,197242437441Babu, R.C., R. Sadassivan, N. Natarajartnam, S.R.S. Rangasewamy and S.R. Rangaswamy,198572152155Bhagasari, A.S. and R.H. Brown,198626127132Chaudhury, M.A.H.,19921992Islam, M.T., F. Kubota and W. Agata,1993Vigna radiata (L.) Wilczek) leaves to different shading conditions.]]>168189Mahon, J.D. and S.L.A. Hobbs,1987Pisum sativum L.) Plants.]]>1987pp: 385-391pp: 385-391Mahon, J.D.,19903010931098Mahon, J.D.,19822 exchange.]]>62517Lambers, H.,198735505519