de Souza Eduardo Lorensi, Antoniolli Zaida Inês, Machado Rafael Goulart, Eckhardt Daniel Pazzini, Dahmer Sabrina de Fátima Barbosa
Laboratório de Microbiologia do Solo e do Ambiente Departamento de Solos Universidade Federal de Santa Maria Santa MariaRS Brazil Laboratório de Microbiologia do Solo e do Ambiente, Departamento de Solos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
Braz J Microbiol. 2015 Mar 4;45(4):1145-51. doi: 10.1590/s1517-83822013005000042. eCollection 2014.
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.
桉树是巴西南里奥格兰德州用于商业造林的主要树种之一。本研究旨在评估桉树在经历三年沙化过程的地区生长后的存活率和早期生长情况。巨桉幼苗在温室中培育，用产自泥炭土或新成土的外生菌根小果硬皮马勃（UFSC-Pt116）进行接种或不接种处理。120天后，将幼苗移植到南里奥格兰德州圣弗朗西斯科-德阿西斯市一个经历沙化过程的地区。对种植后不同天数的植株进行了存活率、高度、茎直径、氮、磷和钾含量以及总磷、无机磷、有机磷和木材产量方面的评估。在新成土上生长且接种了分离出的UFSC-Pt116的幼苗，其存活率、高度、茎直径、氮浓度和木材产量均高于未接种的幼苗。接种外生菌根真菌提高了巨桉幼苗在存活率、高度和茎直径方面的生长量。
