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- W2805325193 abstract "CRESCIMENTO DO SISTEMA RADICIAL E DESEMPENHO DE CLONES DE EUCALIPTO EM VITORIA DA CONQUISTA, BAHIA, BRASIL Caracteristicas do sistema radicial foram estudadas para avaliar o desempenho de clones de eucalipto nas condicoes edafoclimaticas de Vitoria da Conquista, Bahia, Brasil. Foram realizados dois experimentos. No primeiro, em viveiro, as mudas tiveram suas raizes podadas e plantadas em tubos transparentes, delineados em quadrantes, para avaliar o potencial de regeneracao de raizes (PRR) e particao de materia seca da parte aerea para as raizes. Apos 30 dias, verificou-se que AEC 144 e CO 520 sao os clones que possuem maior PRR, embora este ultimo apresente semelhanca com os demais. AEC 144 mostrou uma tendencia de melhor desempenho em particao de materia seca da parte aerea para as raizes. O segundo experimento realizou-se no campo. Apos seis meses de plantio, avaliou-se altura de planta, diâmetro de colo, area foliar, numero de folhas, comprimento da raiz principal, materia seca de parte aerea e raizes e teores de acucares soluveis, acucares redutores, proteinas e aminoacidos em raizes. Entre os clones, nao houve diferencas significativas em todas as caracteristicas avaliadas. Concluimos que, a despeito de diferencas em relacao ao PRR e particao de massa seca, os clones possuem caracteristicas que, no campo, permitem obter desempenhos semelhantes, nas condicoes edafoclimaticas de Vitoria da Conquista.Palavras-chave: plantas lenhosas, mudas clonais, regeneracao de raizes. ABSTRACTRoot system characteristics were studied in order to evaluate the performance of eucalyptus clones in edaphoclimatic conditions of Vitoria da Conquista, Bahia, Brazil. Two experiments were carried out. First, in a nursery, seedlings had their roots pruned and were planted in transparent tubes, outlined in quadrants, for evaluating root regeneration potential (RRP) and the dry matter partitioning from shoot to roots. 30 days after planting, AEC 144 and CO 520 were the clones with highest RRP, although CO 520 is similar to the other three clones. AEC 144 showed a tendency of better performance in dry matter partitioning from shoot to roots. The second experiment was carried out in the field. Six months after planting, plant height, stem diameter, leaf area, number of leaves, main root length, shoot and root dry matter, and soluble sugar, reducing sugar, protein and amino acid contents in roots were determined. There were no significant differences in all characteristics evaluated among the clones. Despite the differences related to RRP and dry mass partitioning, we concluded that the clones have characteristics which lead to a similar plant performance in the field, in the edaphoclimatic conditions of Vitoria da Conquista.Keywords: woody plants, clonal seedlings, root regeneration. DOI: http://dx.doi.org/10.5935/2318-7670.v05n06a08" @default.
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- W2805325193 date "2017-01-01" @default.
- W2805325193 modified "2023-09-24" @default.
- W2805325193 title "Root system growth and eucalyptus clones performance in Vitória da Conquista, Bahia, Brazil" @default.
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- W2805325193 doi "https://doi.org/10.5935/2318-7670.v05n06a08" @default.
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