A STUDY ON THE DEVELOPMENT OF ARBUSCULAR MYCORRHIZAS IN Eucalyptus camaldulensis Dehnh. SEEDLINGS AT DIFFERENT AGES AND THEIR EFFECTS ON SEEDLING GROWTH.

K.  Misbahuzzaman; J.  Wilson

doi:10.53808/KUS.2002.4.1.0039-L

Authors

K. Misbahuzzaman Forestry and Wood Technology Discipline, Khulna University, Khulna-9208, Bangladesh
J. Wilson Tropical Forests Section. Institute of Terrestrial Ecology. Bush Estate. Penicuik. Midlothian EH26 OQB. Edinburgh, UK.

DOI:

https://doi.org/10.53808/KUS.2002.4.1.0039-L

Keywords:

Eucalyptus camaldulensis Dehnh., Glomus clarum Nicolson and Schenck, Gigaspora rosea Nicolson and Schenck, arbuscular mycorrhizal fungi.

Abstract

Host-symbiont interactions between Eucalyptus camaldulensis and arbuscular mycorrhizal fungi in terms of colonisation and growth responses in seedlings at 14 and 24 weeks were investigated. The experiment was set up using vermiculite-peat as a growth medium. The treatment combinations consisted of three AM inocula (Glomus clarum Nicolson and Schenck. isolate BR148-1, Gigaspora rosea Nicolson and Schenck. isolate FL105-5 and a mixed trap culture from Bangladeshi soil) and two nutrient regimes (Ingestad's 2.5 and 10 mg l'1 Phosphorus). This study showed that E. camaldulensis had more arbuscular mycorrhizal colonisation in the 14-week harvest (>50%) compared with that in the 24-week harvest (<40%). AM colonisation resulted in a negative growth response of E. camaldulensis seedlings at both the harvests.

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