Desenvolvimento biométrico de mudas de eucalipto sob diferentes lâminas de irrigação na fase de crescimento
DOI:
https://doi.org/10.4336/2015.pfb.35.84.897Keywords:
manejo hídrico, qualidade de mudas, Eucalyptus urophylla x E. grandis, Eucalyptus urophylla x E. globulusAbstract
Este estudo teve como objetivo a avaliação do desenvolvimento de mudas de eucalipto sob distintas lâminas de irrigação na etapa de crescimento. Híbridos de Eucalyptus urograndis (clone A) e Eucalyptus uroglobulos (clone B) foram submetidas à s lâminas de 5, 9, 11, 14 e 15 mm. Foram mensuradas a altura, diâmetro do colo, biomassa fresca, biomassa seca e calculado o IQD. Do início ao fim do experimento, a altura das mudas variou de 17,75 a 30,27 cm e de 12,03 a 26,70 cm; o diâmetro do colo de 2,17 a 4,38 mm e de 1,88 a 3,13 mm; a biomassa fresca de 2,60 a 7,86 g muda-1 e 1,66 a 8,04 g muda-1; a biomassa seca de 0,89 a 2,45 g muda-1 e 0,42 a 1,97 g muda-1; e o IQD de 0,06 a 0,238 e 0,04 a 0,189, para os clones A e B, respectivamente. Para o clone A, a lâmina de 11 mm é a melhor a ser adotada para a fase de crescimento, pois permite o desenvolvimento de mudas de boa qualidade. Para o clone B a melhor lâmina foi a de 15 mm. O clone A apresentou desenvolvimento superior quando comparado ao clone B.
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Copyright (c) 2015 Carla Raphaela Araújo Silva, Aristides Ribeiro, Aline Santana de Oliveira, Valéria Hollunder Klippel, Robert Louis Pazzeto Barbosa

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