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Research Notes: Relationship Between Initial Population Density of Meloidogyne incognita and Growth, Oil Yield, and Biochemical Changes in Plants of Ocimum canum

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  • Medicine


186 RESEARCH/INVESTIGACIÓN FREQUENCIES AND POPULATION DENSITIES OF THE MAJOR PHYTONEMATODES ASSOCIATED WITH BANANA IN THE STATE OF ALAGOAS, BRAZIL Rosangela da Silva Lima1, Maria de Fátima Silva Muniz1*, José Mauro da Cunha e Castro2, Ellen Rebecca Lopes de Oliveira1, Patrícia Gomes de Oliveira2, Kércya Maria Simões de Siqueira3, Andressa Cristina Zamboni Machado4, and João Gomes da Costa5 1Universidade Federal de Alagoas, Centro de Ciências Agrárias, BR 104 Norte km 85, CEP 57100-000 Rio Largo, AL, Brazil; 2Embrapa Semiárido, Cx. Postal 23, CEP 56300-970 Petrolina, PE, Brazil; 3Agronômica Laboratório de Diagnóstico Fitossanitário, CEP 91210-070 Porto Alegre, RS, Brazil; 4Instituto Agronômico do Paraná, CEP 86047- 902 Londrina, PR, Brazil; 5Embrapa Tabuleiros Costeiros, UEP Rio Largo, CEP 57100-000 Rio Largo, AL, Brazil. *Corresponding author: [email protected] ABSTRACT Lima, R. S., M. F. S. Muniz, J. M. C. Castro, E. R. L. Oliveira, P. G. Oliveira, K. M. S. Siqueira, A. C. Z. Machado, and J. G. Costa. 2013. Frequencies and population densities of the major phytonematodes associated with banana in the state of Alagoas, Brazil. Nematropica 43:186-193. Banana (Musa spp.) is one of the most cultivated and consumed fruits in the tropics. The low productivity and low quality of the Brazilian bananas are largely due to disease problems, among which are nematodes. In Alagoas, there is a lack of information on the nematodes species affecting the banana crop. The objectives of this study were to update the information on the occurrence of plant-parasitic nematodes in some of the banana producing areas in Alagoas state, to provide quantitative information on the frequencies and population densities of these parasites, and to identify the nematode species associated with the banana crop. The study was carried out from April 2011 to January 2012. Forty- two soil and roots samples were collected from banana orchards planted with cultivars Prata, Pacovan, and Terra in 13 mu

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