Effect of dual Arbuscular-ectomycorrhizal inoculation on mycorrhizae formation and growth in E. camaldulensis Dehnh. seedlings under different nutrient regimes
2006
Misbahuzzaman, K. (Chittagong Univ. (Bangladesh). Inst. of Forestry and Environmental Sciences) | Newton, A. (University of Bournemouth, Dorset (UK). School of Conservation Sciences)
Seedlings of Eucalyptus camaldulensis Dehnh. were inoculated with arbuscular mycorrhizal (AM) fungus Glomus clarum Nicolson and Schenck. Isolate BR148-1 and ectomycorrhizal (EM) fungus Pisolithus tinctorius (Pers.) Coker and Couch isolates K55. Four inoculation treatments-AM fungal, EM fungal, dual (AM & EM fungal) and an un-inoculated control and three nutrient treatments were combined in a factorial experiment. Assessment on mycorrhizal colonization and their effects on growth of seedlings were done at 14 and 24 weeks harvests. AM colonization between AM fungal and dual or EM colonization between EM fungal and dual inoculation treatments did not vary significantly. The highest AM and EM colonization were up to 50% and 10%, respectively of the root lengths being colonized. The dual inoculation treatment contributed to a significantly higher total dry mass of the seedlings than the AM treatment; however both the AM and the dual inoculation treatments were associated with a significantly lower dry mass compared to the un-inoculated control.
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