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Home Publications Forest Nursery Notes 2009 Winter Forest Nursery Notes 2009 Winter Forest Nursery Notes - New Nursery Literature Acacia Species Used for Revegetation in South-eastern Australia Require More Than One Multi-Strain Rhizobial Inoculant

Acacia Species Used for Revegetation in South-eastern Australia Require More Than One Multi-Strain Rhizobial Inoculant

Revegetation of degraded land requires either nursery production of tube stock for out-planting or successful establishment of plants after direct seeding, using a range of native species including Acacia spp. Inoculation of Acacia spp. with effective rhizobia benefits plant establishment and growth in the nursery and the field (Brockwell et al., 1999; Thrall et al., 2005). Acacia species exhibit strain specificity for effective nitrogen fixation (Burdon et al., 1999) and the use of a multi-strain inoculant is a practical method for ensuring effective nodulation over a broad host range. In this study, Acacia species commonly used for revegetation were inoculated with a multi-strain product in a commercial nursery trial. The trial aimed to determine: (i) whether there was strain selection by the host for nodulation; and (ii) whether the inoculant strains were competitive for nodulation in the presence of a background soil population of Acacia rhizobia.


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Author(s): A. McInnes, J. Brockwell