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Potential for Using Mycorrhizal Plants to Revegetate Texas Highway Right of Ways
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1984-04-01
[PDF-1.54 MB]
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Abstract:The use of mycorrhizal plants to revegetate Texas highways is being studied. Construction of a highway produces an environment with tremendous environmental problems for revegetation, which limits plant establishment. An important objective in revegetating highway right of ways is establishing more desirable sod cover crops and native plants, particularly on adverse cut and fill slopes. Mycorrhiza are by definition the beneficial symbiotic association of a fungus with the roots of a plant. Mycorrhizal fungi improve survival and establishment of revegetation plants under adverse sites. Use of mycorrhizal plants is one potential technique for improving the establishment of highway vegetation under difficult Texas environmental conditions with minimal maintenance. For the past two years research has involved studying use of mycorrhizal fungi in revegetating Texas highway sites near Austin, Beaumont, Winnie, and Kerrville. To date the study has revealed that the two Austin highway sites and Kerrville site II caused greatest revegetation problems due to slope of the sites, soil texture, and the potential for soil erosion.
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