Thouars nom. cons.]
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چکیده
23 strains of rhizobia, from 14 leguminous species, were evaluated on a Thai cultivar of Voandzeia* in Leonard jar trials. The symbiosis ranged from completely ineffective through moderate effectiveness to fully effective. Bradyrhizobium sp. TAL 169, isolated from Vigna unguiculata, ranked most-effective; the widespectrum Bradyrhizobium strain CB 756 was ineffective. In a cultivar x Bradyrhizobium spp. trial, the host-genotype significantly (P _ 0.01 or P 0.001) influenced shoot dry weight, shoot N, nodule dry weight and nitrogenase activity. The rhizobial strains were also significant sources of variation for shoot-dry weight (P = 0.05), shoot N (P < 0.001) and nodule dry weight (P < 0.01). There were no significant host x Rhizobium interactions, indicating that no specific combination was superior over the broad range of all treatments. Percentage shoot N and specific nitrogenase activity were poor indicators of N2 fixation capacity in Voandzeia. Voandzeia cultivar No. 12 P.P. Rust in combination with Bradyrhizobium sp. TAL 169 showed high potential for growth, nodulation and N2 fixation. This study indicated that Voandzeia is specific for its rhizobial requirement for effective symbiosis.
منابع مشابه
PIERRE L. IBISCH, CHRISTOPH NEINHUIS & PATRICIA ROJAS N. On the biology, biogeography, and taxonomy of Arachnitis Phil. nom. cons. (Corsiaceae) in respect to a new record from Bolivia
Ibisch, P. L., Neinhuis, Ch. & Rojas N., P.: On the biology, biogeography, and taxonomy of Arachnitis Phil. nom. cons. (Corsiaceae) in respect to a new record from Bolivia. − Willdenowia 26: 321−332. 1996. − ISSN 0511−9618. A new locality of Arachnitis uniflora from a forest in the central Andes of Bolivia is described. Thus, the species, hitherto well known only from Patagonia, shows a remarka...
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تاریخ انتشار 2002