Research article

Reforestation of Bauxite mine spoils with Eucalyptus tereticornis Sm. seedlings inoculated with Arbuscular mycorrhizal fungi

A. Karthikeyan , N. Krishnakumar

A. Karthikeyan
Institute of Forest Genetics and Tree Breeding Coimbatore, 641 002 Tamilnadu, India. Email: karthika@icfre.org
N. Krishnakumar
Institute of Forest Genetics and Tree Breeding Coimbatore, 641 002 Tamilnadu, India

Online First: October 15, 2012
Karthikeyan, A., Krishnakumar, N. 2012. Reforestation of Bauxite mine spoils with Eucalyptus tereticornis Sm. seedlings inoculated with Arbuscular mycorrhizal fungi. Annals of Forest Research 55(2): 207-216.


Open cast mining for bauxite at Yercaud hills (India) resulted in degradation of forest ecosystem and production of large quantities of waste rocks (called mine spoils). To ameliorate mine spoils, topsoil is used to spread over before the planting of tree species, conventional method as the topsoil has a good structure, water holding capacity and beneficial microbes like Arbuscular Mycorrhizal (AM) fungi essential for plant growth. However, the use of top soil is expensive and in this study bauxite mine spoils were reforestated with AM fungi instead of it. The beneficial microbes AM fungi (Glomus aggregatum Schenck & Smith, G. fasciculatum (Thatcher) Gerd. & Trappe emend. Walker & Koske, G. geosporum (Nicol. & Gerd.) Walker) were isolated, cultured and inoculated into the seedlings ofEucalyptus tereticornis Sm. and grown in bauxite mine spoils as potting medium under nursery conditions. Then, the biomass improved seedlings of E. tereticornis with inoculation of AM fungi were directly transplanted at bauxite mine spoils. After transplantation of the seedlings at bauxite mine spoils, the growth and survival rate were monitored for two years. The AM fungi inoculated seedlings ofE. tereticornis showed 95% survival over the control seedlings and their growth was also significantly higher. Tissue nutrients (N, P, K) were also found higher in AM fungi inoculated E. tereticornis than un inoculated control seedlings. 

No Supplimentary Material available for this article.
No metrics available for this article.

Related Articles

Related Authors

 



In Google Scholar

In Annals of Forest Research

In Google Scholar

 
  • A. Karthikeyan
  • N. Krishnakumar
  • A. Karthikeyan
  • N. Krishnakumar