EFFECTS OF PISOLITHUS TINCTORIUS AND LACCARIA FRATERNA ON THE GROWTH AND MYCORRfflZAL DEVELOPMENT OF PINUSPATULA SEEDLINGS*)

Authors

  • M. SUDHAKARA REDDY Centre for advanced Studies in Botany, University of Madras Guindy Campus, Madras 600 025
  • K. NATARAJAN Centre for advanced Studies in Botany, University of Madras, Guindy Campus, Madras 600 025, India

DOI:

https://doi.org/10.11598/btb.1995.0.8.121

Abstract

Vegetative inoculum of Pisolithus tinctorius and Laccariafraterna were inoculated to Pinuspatula seedlings grown in both steam sterilized and unsterilized shola soil. After 4 months of seedling growth, 10 seedlings from each treatment were harvested and various growth parameters were studied. Inoculation of these two fungi resulted in  the  production  of  ectomycorrhizas  and  increase  in  growth  of  P.  patula  seedlings when  compared  to uninoculated  seedlings.  Laccariafraterna  inoculated  seedlings  showed  more  number  of mycorrhizas  than  P. tinctorius inoculated seedlings at the end of one year. Both these fungi poorly colonized the root system in both soil treatments. There was no significant difference between these two fungi in improving the seedling growth in the nursery.Key words: Pisolithus tinctorius/Laccaria fraterna/Pinus patula/Inoculum/Seedlings/Growth.

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