1. Crescimento vegetativo de mudas de Coffea arabica L. inoculadas com Trichoderma harzianum e Beauveria bassiana.
- Author
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Arizono dos Reis, Ricardo, Neves Celestino, Flávio, Rodrigues Alves, Jucélia, Martins Rolim, Aline Aparecida, and da Fonseca Pires, Simone
- Subjects
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TRICHODERMA harzianum , *BEAUVERIA bassiana , *LEAF area , *COFFEE , *FUNGAL growth , *COFFEE beans - Abstract
Growth promoting fungi have the potential to be used in seedling production. The objective of this work was to evaluate the vegetative growth of Coffea arabica L. seedlings inoculated with the fungi Trichoderma harzianum and Beauveria bassiana, and to determine the immersion time of the seeds in the conidia suspension. The seeds were immersed in the conidia suspension (1 x 107 conidia.mL-1) for 0h, 6h, 12h, 24h, 48h and 96h, constituting a 3 x 6 factorial arrangement in randomized blocks. The following were evaluated: aerial part height, collar diameter, number of pairs of leaves, leaf area, root length, fresh and dry mass. The fungus B. bassiana promoted greater plant height at times 0h, 6h and 96h and a greater number of pairs of leaves at times 6h and 96h. The fungus T. harzianum promoted shorter root length and the fungus B. bassiana at 6h and 96h. The fungus T. harzianum promoted greater diameter of the seedling neck at 12h, 48h and 96h. The fungus B. bassiana promoted greater fresh mass of aerial parts compared to the fungus T. harzianum. There was no significant difference between the other parameters. The 65h seed immersion time promoted greater leaf area and there is no relationship with growth promoting fungi. Research with the fungi B. bassiana and T. harzianum should be expanded, since there is evidence of gains in certain vegetative growth parameters, such as plant height and stem diameter. The immersion time is not a determining factor in the vegetative growth of Arabica coffee seedlings, in the presence of the fungi B. bassiana and T. harzianum. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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