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FITOTECNIA • Cienc. Rural 46 (3) • Mar 2016 • https://doi.org/10.1590/0103-8478cr20140488 linkcopy

Open-access Cattley guava genotypes resistance to Meloidogyne enterolobii

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    ABSTRACT:

    This research aimed to evaluate genotypes of P. cattleyanum by resistance to M. enterolobii. The experiment was conducted in a completely randomized design with six treatments, consisting of five genotypes of P. cattleyanum and guava 'Paluma' (control) and eight replicates. Genotypes classification for resistance was determined by the reproduction factor (RF), evaluated at 135 days after inoculation with the nematode. Genotypes of P. cattleyanum were considered as resistant once reproduction factors evaluated had less than or equal to 0.2.

    Key words:
    Psidium guajava; Psidium catteyanum; clonal propagation; minicutting; root-knotnematode; guava decline

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    Universidade Federal de Santa Maria Universidade Federal de Santa Maria, Centro de Ciências Rurais , 97105-900 Santa Maria RS Brazil , Tel.: +55 55 3220-8698 , Fax: +55 55 3220-8695 - Santa Maria - RS - Brazil
    E-mail: cienciarural@mail.ufsm.br
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