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Abstract
Astragalus filipes Torr. Ex A. Gray (basalt milkvetch) is a leguminous plant species that has a wide distribution in western North America. A series of greenhouse and field experiments were conducted to identify rhizobial strains and populations (accessions) of basalt milkvetch that have potential for use in revegetation and restoration programs in the western U.S.A. In the first greenhouse experiment, six rhizobial strains were evaluated with several basalt mikvetch accessions for their N-fixation characteristics. Rhizobial treatments and basalt milkvetch accessions exhibited no significant interactions for N-fixation characteristics, suggesting that the best rhizobial strain was the best across all basalt milkvetch accessions. Plants inoculated with different rhizobial strains differed in nodule weight, and number of nodules, but did not differ in shoot biomass and root biomass.
Citation
Bhattarai, Kishor. 2007. Potential of basalt milkvetch (
Astragalus filipes Torr. Ex A. Gray) populations and rhizobial strains for revegetation and restoration of Intermountain West rangelands. Logan, UT: Utah State University. 116 p. Thesis.
