Structure of root nodules and nitrogen fixation in Egyptian wild herb legumes
1998
Zahran, H.H. (Faculty of Science, Beni-Suef (Egypt))
Five wild herb legumes (Trifolium resupinatum, Melilotus indica, Medicago intertexta, Trigonella hamosa, and Alhagi murarum) were compared with clover (Trifolium alexandrinum), a cultivated forage legume. The wild herb legumes exhibited great variation in nodulation percentage, nodule number, nodule mass and acetylene reduction activity with regard to locality. Nodulation of T resupinatum and M. indica ranged between 50-100 % and 33-100 %, respectively, compared to 50-100 % for T. alexandrinum. The number of nodules formed on T. resupinatum was 9-128 and that of M. indica 6-39, compared to 13-122 nodule per plant for T. alexandrinum. Nodule mass was correlated with nodule number.
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