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Previous issue date: 2011 / A utiliza??o dos fungos ectomicorr?zicos (FEM) em plantios comerciais de eucalipto melhora a adapta??o das mudas no campo e permite um uso mais eficiente de fertilizantes. A efici?ncia de doses de inoculante de FEM em promover o crescimento, a absor??o de nutrientes, a coloniza??o ectomicorr?zica e a qualidade de mudas clonais de Eucalyptus urophylla foi avaliada em condi??es de viveiro comercial. O experimento foi realizado em delineamento inteiramente casualizado em esquema fatorial 4 x 4, com quatro doses de inoculante composto de mic?lio vegetativo incluso em gel de alginato de c?lcio (0, 5, 10 e 15 c?psulas) dos FEM Amanita muscaria isolado UFSC-Am161, Elaphomyces anthracinus (Cenococcum geophilum) isolado Amance, Pisolithus microcarpus isolado ITA-06 e Scleroderma areolatum isolado UFSC-Sc129, mais um controle n?o inoculado com 100 % da aduba??o de substrato, com quatro repeti??es. Os FEM, em geral, promoveram maior di?metro do coleto, altura da parte a?rea, massa seca da parte a?rea, coloniza??o ectomicorr?zica, teores e conte?dos foliares de N, P e K nas mudas clonais de eucalipto. O melhor crescimento e coloniza??o foram observados na maior dose de inoculante e os maiores teores e conte?do de P, N e K na dose de 10 c?psulas de inoculante. O ?ndice de qualidade de Dickson n?o foi influenciado pelos diferentes fungos e doses de inoculante. As mudas clonais de eucalipto inoculadas pelos FEM e crescidas com a metade da aduba??o de substrato, apesar de menor produ??o de massa seca, apresentaram teores e conte?dos de P e N e teor de K maiores ou iguais ?quelas crescidas com a aduba??o de substrato completa e n?o inoculadas. Apresentaram, assim, qualidade suficiente para o transplantio aos 90 dias. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2011. / ABSTRACT The use of ectomycorrhizal fungi (EMF) in commercial plantation of eucalyptus improves the adaptation of seedlings in farm and allows a more efficient use of fertilizers. The efficiency of doses of inoculant of EMF to promote growth, nutrients absorption, ectomycorrhizal colonization and clonal seedlings quality of Eucalyptus urophylla in commercial plant nursery were assessed on this study. The crop fertilization of the substrate of production of seedling was reduced at 50 per cent to avoid inhibitory effect of crop fertilization on ectomycorrhizal colonization. The experiment was made in completely randomized design in 4x4-factorial scheme, with four doses of inoculum compounded with vegetal mycelium impregnated by calcium-alginate gel (0, 5, 10 and 15 capsules) of EMF Amanita muscaria isolated UFSC-Am161, Elaphomyces anthracinus (Cenococcum geophilum) isolated Amance, Pisolithus microcarpus isolated ITA-06 and Scleroderma areolatum isolated UFSC-Sc129, plus a non-inoculated control with a hundred per cent of fertilization of the substrate with four repetitions. The EMF, in general, promoted bigger diameter of the base, height of aerial part, dry matter of aerial part, ectomycorrhizal colonization, concentration and leaf content of N, P and K on clonal seedling of eucalyptus. The best growth and colonization were observed at the highest dose of the inoculant and the highest levels and contents of P, N and K at a dose of 10 capsules of inoculant. The Dickson Quality Index was not influenced by different fungi and doses of inoculum. The clonal eucalyptus seedling inoculated by the EMF and that was grown with half substrate fertilization, despite of less production of dry matter, show concentration and content of P and N and concentration of K bigger or equal to those seedling that was grown with the fertilization of substrate of production of seedlings of complete and non-inoculated. They also submit sufficient quality for transplantation as early as 90 days.
| Identifer | oai:union.ndltd.org:IBICT/oai:acervo.ufvjm.edu.br/jspui:1/569 |
| Date | 25 February 2011 |
| Creators | Gandini, Andrezza Mara Martins |
| Contributors | Grazziotti, Paulo Henrique, Silva, Enilson de Barros, Rossi, M?rcio Jos?, Kasuya, Maria Catarina Megumi, Grazziotti, Paulo Henrique, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFVJM, instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri, instacron:UFVJM |
| Rights | info:eu-repo/semantics/openAccess |
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