Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/31964
Title: Resistência de clones de batata‑doce a Meloidogyne javanica
Other Titles: Resistance of sweet potato clones to Meloidogyne javanica
Keywords: Ipomoea batatas
Meloidogyne spp
Nematoides-das-galhas
Fator de reprodução
Índice de reprodução
Batata doce - Melhoramento genético
Root-knot nematodes
Reproduction factor
Reproduction index
Sweet potatoes - Genetic improvement
Issue Date: Jan-2016
Publisher: Associação Brasileira de Horticultura
Citation: ANDRADE JÚNIOR, V. C. et al. Resistência de clones de batata‑doce a Meloidogyne javanica. Horticultura Brasileira, Vitória da Conquista, v. 34, n. 1, p. 130-136, jan./mar. 2016.
Abstract: The objective of this study was to evaluate and select clones of sweet potato (Ipomoea batatas) for their resistance to Meloidogyne javanica. Sixty-tree clones were evaluated, among the commercial cultivars (Brazlândia Rosada, Brazlândia Branca, Palmas, Princesa and Coquinho) plus the tomato cv. Santa Clara (susceptible to Meloidogyne spp.). The stems were planted in expanded polystyrene trays with 72 cells with commercial substrate and maintained in a greenhouse. The experimental setup was a randomized blocks design with three replications and six plants per plot. The pathogen inoculation was carried out 30 days after the stems planting, and after 75 days the stems were removed from the polystyrene trays and their roots were washed. Extraction and counting of nematode eggs were carried out. Classifying resistance levels was carried out based on reproductive factors (FR) and reproduction index (IR). Of the 63 clones 71.43% were identified as resistant by the reproduction factor and 82.51% were classified as highly resistant or very resistant by reproduction index. When the both classification criteria were used, 71.43% of sweet potato clones were classified as resistant to Meloidogyne javanica.
URI: http://repositorio.ufla.br/jspui/handle/1/31964
Appears in Collections:DAG - Artigos publicados em periódicos

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