Eucalyptus grandis Hill ex Maiden inoculated with Pisolithus microcarpus (UFSC-Pt116) in land subject to the sandy process in southern Brazil

Abstract

Eucalypts is one of the main species used for commercial reforestation in the Rio Grande do Sul State, Brazil. This study aimed to evaluate the survival and early growth of eucalyptus trees in an area subject to sandy process after three years of growth. The Eucalyptus grandis seedlings were grown in a greenhouse, inoculated or not with the isolated ectomycorrhizal Pisolithus microcarpus (UFSC-Pt116), produced in peat or Entisol. After 120 days, the seedlings were transplanted to an area subject to the sandy process, in the São Francisco de Assis city, RS. The plants have been evaluated regarding survival, height, stem diameter, nitrogen, phosphorus and potassium levels and total phosphorus, inorganic phosphorus, organic phosphorus and wood production on different days after planting. The seedlings grown on the Entisol which was inoculated with the isolated UFSC-Pt116 presented higher survival rates, height, stem diameter, nitrogen concentration and wood production then non-inoculated seedlings. Inoculation with ectomycorrhizal fungi enhanced the production of E. grandis seedlings in survival rates, height, stem diameter.

Intercropped Silviculture Systems, a Key to Achieving Soil Fungal Community Management in Eucalyptus Plantations

“…For example, in the Eucalyptus treatment, an average of 42% of the sequences belonged to the genus Pisolithus , and approximately 13% belonged to the genus Scleroderma . Pisolithus is commonly associated with Eucalyptus and can be used as an inoculant to improve Eucalyptus development [ 22 ]. Despite their previously described occurrence with Acacia mangium [ 43 ], Pisolithus and Scleroderma did not occur at a significant frequency in the Acacia treatment.…”

“…Mycorrhizal associations are found in more than 80% of plants, and most of them are dependent on these associations for efficient nutrient uptake [ 20 ]. Studies have demonstrated an increase in both Eucalyptus and Acacia development when associated with mycorrhizal fungi [ 21 , 22 ]. These trees can establish associations with both ectomycorrhizae and arbuscular mycorrhizae [ 21 , 23 , 24 ].…”