Silicato de cálcio auxilia na redução de Meloidogyne javanica, mas não controla Heterodera glycines em Glycine max
Carregando...
Data
2023-02-07
Autores
Moraes, Pâmela Barbosa
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
O cultivo da soja cresce cada vez mais em todo o mundo, devido ao seu cultivo intensivo, sua produção comercial é bastante afetada por questões fitossanitárias. Um dos fitoparasitas mais proeminentes é o nematoide de galha (Meloidogyne javanica; Mj) e o nematoide de cisto da soja (Heterodera glycines; Hg), cuja cultura é altamente suscetível. A agricultura moderna busca alternativas mais sustentáveis para reduzir os danos na cultura, neste caso, o silício (Si) é um elemento benéfico às plantas, que pode reduzir a ocorrência de problemas fitossanitários e aumentar a produtividade. Portanto, o trabalho teve como objetivo avaliar o uso do silicato de cálcio no controle de M. javanica e H. glycines. O experimento foi conduzido em casa de vegetação, em delineamento inteiramente casualizado, sendo composto em esquema fatorial 2 x 4, sendo 2 a presença e ausência de silicato de cálcio e 4, os níveis populacionais para cada espécie de nematoide, que consistiram em 0, 2.000, 4.000 e 8.000 ovos e juvenis de segundo estádio. Os experimentos foram conduzidos de forma equivalente para as duas espécies de nematoides M. javanica (Mj) e H. glycines (Hg). Os dados foram submetidos a análise de variância e, quando significativo, ao teste de comparação de médias por Tukey a 5% de probabilidade. Os resultados obtidos nos níveis populacionais demonstram que a aplicação de silicato de cálcio, em soja, reduziu a reprodução de M. javanica (nematoide de galha) e não reduziu a população de H. glycines (nematoide de cisto da soja).
Soybean cultivation is growing more and more worldwide, due to its intensive cultivation, its commercial production is greatly affected by phytosanitary issues. One of the most prominent phytoparasites is the gall nematode (Meloidogyne javanica; Mj) and the soybean cyst nematode (Heterodera glycines; Hg), which the crop is highly susceptible to. Modern agriculture seeks more sustainable alternatives to reduce crop damage, in this case, silicon (Si) is a beneficial element to plants, which can reduce the occurrence of phytosanitary problems and increase productivity. Therefore, the objective of this work was to evaluate the use of calcium silicate in the control of M. javanica and H. glycines. The experiment was conducted in a greenhouse, in an entirely randomized design, with a 2 x 4 factorial scheme, where 2 were the presence and absence of calcium silicate and 4, the population levels for each nematode species, which consisted of 0, 2,000, 4,000 and 8,000 eggs and second-stage juveniles. The experiments were conducted in an equivalent manner for the two nematode species M. javanica (Mj) and H. glycines (Hg). The data were submitted to variance analysis and, when significant, to Tukey's mean comparison test at 5% probability. The results obtained in the population levels demonstrate that the application of calcium silicate, in soybeans, reduced the reproduction of M. javanica (gall nematode) and did not reduce the population of H. glycines (soybean cyst nematode).
Soybean cultivation is growing more and more worldwide, due to its intensive cultivation, its commercial production is greatly affected by phytosanitary issues. One of the most prominent phytoparasites is the gall nematode (Meloidogyne javanica; Mj) and the soybean cyst nematode (Heterodera glycines; Hg), which the crop is highly susceptible to. Modern agriculture seeks more sustainable alternatives to reduce crop damage, in this case, silicon (Si) is a beneficial element to plants, which can reduce the occurrence of phytosanitary problems and increase productivity. Therefore, the objective of this work was to evaluate the use of calcium silicate in the control of M. javanica and H. glycines. The experiment was conducted in a greenhouse, in an entirely randomized design, with a 2 x 4 factorial scheme, where 2 were the presence and absence of calcium silicate and 4, the population levels for each nematode species, which consisted of 0, 2,000, 4,000 and 8,000 eggs and second-stage juveniles. The experiments were conducted in an equivalent manner for the two nematode species M. javanica (Mj) and H. glycines (Hg). The data were submitted to variance analysis and, when significant, to Tukey's mean comparison test at 5% probability. The results obtained in the population levels demonstrate that the application of calcium silicate, in soybeans, reduced the reproduction of M. javanica (gall nematode) and did not reduce the population of H. glycines (soybean cyst nematode).
Descrição
Palavras-chave
Soja, Silicio, nematoda em plantas