Reaction of yellow passion fruit to passion fruit woodiness disease and to bacterial spot

Authors

  • Anne Pinheiro Costa Universidade de Brasília
  • Isadora Nogueira Universidade de Brasília
  • José Ricardo Peixoto Universidade de Brasília
  • Luiz Eduardo Bassay Blum Universidade de Brasília
  • Michelle Souza Vilela Universidade de Brasília
  • Wagner Vendrame University of Florida

DOI:

https://doi.org/10.14393/BJ-v34n6a2018-39686

Keywords:

Cowpea aphid-borne mosaic virus, Xanthomonas axonopodis pv. passiflorae, Genetic breeding

Abstract

The use of resistant varieties is a promising strategy for passion fruit woodiness disease (PWD) (Cowpea aphid-borne mosaic virus - CABMV) and bacterial spot (Xanthomonas axonopodis pv. passiflorae - Xap) control in yellow passion fruit (Passiflora edulis Sims). This study aimed at evaluating the reaction of nine genotypes of yellow passion fruit to both mechanically inoculated CABMV and Xap, under protected cultivation. The experiment was conducted using a randomized block design with subdivided parcels comprised of nine treatments, four repetitions, six replications per genotype, and five evaluations. Disease incidence (% plants infected) and severity (% of total leaf area with necrotic lesions or leaf symptoms) were calculated at 7-day intervals. All genotypes evaluated were classified as moderately susceptible to PWD. MAR20#10, MAR20#41, and Rosa Intenso were classified as moderately resistant to bacterial spot whereas the remaining genotypes were classified as moderately susceptible. Genotypes Rosa Intenso, MAR20#41, MAR20#15, and MSCA stood out for presenting the lowest PWD mean severity scores as well as the greatest numbers of plants presenting resistance to PWD after five evaluations. MAR20#10, MAR20#41, and Rosa Intenso demonstrated the lowest bacterial spot mean severity scores. Among the genotypes selected, Rosa Intenso and MAR20#41 were the most promising genotypes for presenting the lowest severity scores for both PWD and bacterial spot disease.

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Published

2018-12-06

How to Cite

PINHEIRO COSTA, A., NOGUEIRA, I., PEIXOTO, J.R., BASSAY BLUM, L.E., SOUZA VILELA, M. and VENDRAME, W., 2018. Reaction of yellow passion fruit to passion fruit woodiness disease and to bacterial spot . Bioscience Journal [online], vol. 34, no. 6, pp. 189–196. [Accessed3 December 2022]. DOI 10.14393/BJ-v34n6a2018-39686. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/39686.

Issue

Section

Agricultural Sciences