%0 Journal Article
%A Mohammad Athar
%T Seasonal Patterns of Nitrogen-Fixing Ability (C2H2 Reduction) and Hydrogen Uptake by Actinorhizal Nodules of 
Casuarina equisetifolia Linn.
%D 1996
%J Taiwania
%V 41
%N 3
%P 208-214
%U https://taiwania.ntu.edu.tw/abstract/350
%X Casuarina equisetifolia is an actinorhizal tree being introduced in agroforestry systems of Pakistan. A study was conducted to observe the seasonal changes in nodular nitrogenase activity (C2H2 reduction) and uptake hydrogenase activity of C. equisetifolia. Nodules showed significant (P SYMBOL 163  f 'Symbol' 0.05) seasonal variation in the nitrogenase and hydrogenase activities which were highest during June (13.52  SYMBOL 109  f 'Symbol' moles C2H4 . g-1 fresh nodule wt. hr-1 and 2.55  SYMBOL 109  f 'Symbol' moles H2  consumed g-1 fresh nodule wt. hr-1, respectively) and lowest during December (0.55  SYMBOL 109  f 'Symbol' moles C2H4 . g-1 fresh nodule wt. hr-1 and 0.23  SYMBOL 109  f 'Symbol' moles H2 consumed g-1 fresh nodule wt. hr-1, respectively). This study has many important and applied ecological implications in the management of horticulture and agroforestry systems of the tropics.
%M doi:10.6165/tai.1996.41.208