Problems caused by nematodes and Fusarium wilt (Panama disease) on banana plantations are responsible for yield losses and are limiting for cultivation. In the Brazilian state of Goias, there is little information about nematode occurrence in this crop and its relation with Fusarium oxysporum f.sp. cubense (Foc) incidence.
"This research had the purpose of identifying the presence of parasitic nematodes and verify their correlation with Fusarium wilt and soil characteristics (pH, texture, nutrients). Twelve banana plantations in the municipalities of Anapolis, Caiaponia, Goiatuba, Itaguaru, Itumbiara (due aree), Jatai, Morrinhos, Ouro Verde, Palestina, Taquaral and Uruana in the state of Goias were sampled," explain researches.
All sample areas except Morrinhos revealed Foc contamination and all areas had different genera of nematodes either in the soil or root samples. Meloidogyne sp., Helicotylenchus sp. and Rotylenchus sp. were the main genera, Meloidogyne sp. and Rotylenchus sp. being the more dominant and abundant.
"The presence of Pratylenchus sp. increases the population levels of F. oxysporum. Helicotylenchus sp. is highly correlated with high concentrations of manganese. The high population density of Meloidogyne sp. was found in irrigated areas with low concentrations of phosphorous, calcium, magnesium and soil pH."
Source: Nayane Oliveira Almeida, Renato Andrade Teixeira, Franciele Alves Carneiro, Camilla Martins de Oliveira, Victor Alves Ribeiro, Murillo Lobo Júnior, Mara Rúbia da Rocha, 'Occurrence and correlations of nematodes, Fusarium oxysporum and edaphic factors on banana plantations', 2018, Journal of Phytopathology, Vol. 166 (4), pag. 265-272.
"The presence of Pratylenchus sp. increases the population levels of F. oxysporum. Helicotylenchus sp. is highly correlated with high concentrations of manganese. The high population density of Meloidogyne sp. was found in irrigated areas with low concentrations of phosphorous, calcium, magnesium and soil pH."
Source: Nayane Oliveira Almeida, Renato Andrade Teixeira, Franciele Alves Carneiro, Camilla Martins de Oliveira, Victor Alves Ribeiro, Murillo Lobo Júnior, Mara Rúbia da Rocha, 'Occurrence and correlations of nematodes, Fusarium oxysporum and edaphic factors on banana plantations', 2018, Journal of Phytopathology, Vol. 166 (4), pag. 265-272.