Survey of nematodes associated with sugarcane in the state of Paraná, Brazil
Arq. Inst. Biol. (Online)
;
89: e00332021, 2022. ilus, tab
Artigo
em Inglês
| LILACS, VETINDEX
| ID: biblio-1416786
ABSTRACT
Sugarcane-associated nematodes (Saccharum spp.) can reduce productivity up to 50%. Through the survey, it was possible to identify the main nematodes that occur in a certain region as a tool for designing the best management and control strategies. The aim of this study was to characterize the population of nematodes associated with sugarcane in the North Central, North Pioneiro and Northwest mesoregion of the state of Paraná, Brazil, quantify the nematode genera associated with the crop and identify the species of Pratylenchus and Meloidogyne. A total amount of 89 soil and root composite samples were collected in nine municipalities. Nematodes were extracted and counted in a Peters counting chamber under an optical light microscope. Morphological description followed identification keys. Pratylenchus spp. were identified by morphological characteristics; Meloidogyne spp. were identified by morphological characteristics and isoenzyme electrophoresis. Twelve genera of nematodes associated with sugarcane were identified Pratylenchus, Meloidogyne, Helicotylenchus, Xiphinema, Mesocriconema, Trichodorus, Aphelenchus, Hoplolaimus, Tylenchus, Tylenchorhynchus, Ditylenchus, and Paratrichodorus. The genera Pratylenchus and Meloidogyne were found with the highest frequencies in the roots. Among the species of Pratylenchus, P. zeae and P. brachyurus were found, with P. zeae being the most frequent. Among the Meloidogyne species, only M. javanica was found. These results are essential to aid decision making in the management of phytonematodes, mainly in the development of new control strategies and in directing genetic breeding programs for development of sugarcane cultivars for the Paraná state.
Assuntos
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Tylenchoidea
/
Tylenchida
/
Saccharum
/
Nematoides
Tipo de estudo:
Estudo prognóstico
/
Fatores de risco
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Arq. Inst. Biol. (Online)
Ano de publicação:
2022
Tipo de documento:
Artigo
Instituição/País de afiliação:
Agência de Defesa Agropecuária do Paraná/BR
/
Universidade Federal do Paraná/BR
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