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Plant growth promoting H2-oxidizing bacteria as seed inoculants for cereal crops

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DOI: 10.4236/as.2012.34060    4,117 Downloads   6,982 Views   Citations

ABSTRACT

The long-term success of hydrogenase uptake negative legume-rhizobia associations, in spite of their apparent inefficiency, may be explained by the positive effects of H2 release to soil. A primary benefit of H2 release to soil is the stimulation of H2-oxidizing, plant growth promoting rhizobacteria (PGPR) [1]. Two such previously isolated strains were tested as seed inoculants for barley and spring wheat; there were significant differences between treatments and controls in tiller and grain head production, supported by data from greenhouse trials. T-RFLP analysis of barley soil samples, supported by DNA sequencing data, successfully distinguished both species inoculated. Successful re-isolation indicates that these isolates can reproduce themselves in soils and can be used as effective inoculants with peat as the standard carrier. This study showed that we are able to achieve some of the beneficial effects of crop rotation without the need to implement actual crop rotation.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Golding, A. , Zou, Y. , Yang, X. , Flynn, B. and Dong, Z. (2012) Plant growth promoting H2-oxidizing bacteria as seed inoculants for cereal crops. Agricultural Sciences, 3, 510-516. doi: 10.4236/as.2012.34060.

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