Browsing Desert Plants, Volume 5, Number 3 (Autumn 1983) by Issue Date
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Desert Plants as Indicators of Geology and Soil TypesUniversity of Arizona (Tucson, AZ), 1983
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Desert Plants, Volume 5, Number 3 (Autumn 1983)University of Arizona (Tucson, AZ), 1983
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Editorial - Palms, Presidios and Pride: An Update on Arizona-California Sibling RivalryUniversity of Arizona (Tucson, AZ), 1983
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ReviewsUniversity of Arizona (Tucson, AZ), 1983
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Leucaena - Rhizobium Compatability and Nitrogen FixationThe compatibility and effectiveness of potentially nitrogen fixing associations between two Rhizobium strains and thirteen collections of Leucaena leucocephala, five other species of Leucaena, and Albizia occidentalis were determined. The appearance, dry weight, and nitrogen content of plants grown with and without Rhizobium were determined. A comparison was made of nitrogen fixed per plant and per unit weight of plant, and the ratio of plant weight (grown with Rhizobium) to plant weight (grown without Rhizobium). The various collections of L. leucocephala made compatible and equally effective nitrogen fixing associations with the two strains of Rhizobium. Compatible and effective nitrogen fixing associations also occurred with L. pulverulenta, L. esculenta, L. diversifolia, and L. collinsii. Less effective nitrogen fixing associations occurred with L. retusa. Although root nodules formed on A. occidentalis, effective nitrogen fixation did not occur.