التفاصيل البيبلوغرافية
| العنوان: |
MÉTODOS DE APLICAÇÃO E CONCENTRAÇÕES DE ACIBENZOLAR-S-METIL NO MANEJO DE MELOIDOGYNE JAVANICA EM SOJA. (Spanish) |
| العنوان البديل: |
Application methods and concentrations of acibenzolar-S-methyl to Meloidogyne javanica management in soybean. (English) |
| المؤلفون: |
Costa Brito, Olivia Diulen, Higashi Puerari, Heriksen, Hernandes, Isabela, Antunes Ferreira, Júlio César, Ragazzi Cardoso, Michelly, Regina Dias-Arieira, Claudia |
| المصدر: |
Nematropica; 2016, Vol. 46 Issue 1, p106-113, 8p |
| مصطلحات موضوعية: |
SOYBEAN diseases & pests, ROOT-knot nematodes, JAVANESE root-knot nematode, SEED treatment, NEMATODE diseases of plants, NEMATODE control |
| الملخص (بالإنجليزية): |
Root-knot nematodes, especially Meloidogyne incognita and M. javanica, are among the main limiting agricultural factors of the productivity of soybean (Glycine max). The use of resistance inducers can be an option for the management of these parasites. Acibenzolar-S-methyl (ASM) is the most studied resistance-inducing product, but additional research is necessary before its use in the root-knot nematode management, including the evaluation of ASM concentrations, is well understood. This study aimed to assess the effect of different application methods and ASM concentrations on the management of M. javanica in soybean. Initially, 2,000 eggs of M. javanica were inoculated in soybean for its multiplication. After 60 d, the shoots were removed and soybean seed were sown with the following application methods: seed treatment, shoot treatment, and seed + shoot treatment. In each treatment, the concentrations: 0 (control); 0.025, 0.050, and 0.100 g/L were applied. After 60 d, vegetative and nematological parameters were evaluated. Acibenzolar-S-methyl did not affect the vegetative parameters that were measured, but the highest concentration (0.100 g/L) was efficient in the reduction of the number of galls, independently of the application method. The number of nematodes per gram of root decreased when the product was applied to shoots and in the seed + shoot treatment. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): |
Os nematoides das galhas, especialmente Meloidogyne incognita e M. javanica, encontram-se entre os principais limitantes da produtividade agrícola da soja (Glycine max). O uso de indutores de resistência pode ser opção para o manejo destes parasitas, sendo o acibenzolar-S-metil (ASM) um dos mais pesquisados. Contudo, estudos são necessários para sua viabilização no manejo de nematoides das galhas, incluindo avaliações de concentrações. Assim, objetivou-se avaliar métodos de aplicação e concentrações de ASM para o manejo de M. javanica em soja. Inicialmente, 2000 ovos de M. javanica foram inoculados em soja para a multiplicação do nematoide. Após 60 dias, descartou-se a parte aérea e semeou-se a soja com os seguintes métodos de aplicação: tratamento de semente, tratamento em parte aérea e tratamento de semente + parte aérea. Em cada tratamento foram utilizadas as concentrações 0 (testemunha); 0,025; 0,050, 0,100 g/L de água. Após 60 dias, avaliaram-se parâmetros vegetativos e nematológicos. O ASM não interferiu nos parâmetros vegetativos, porém reduziu o número de galhas na maior dose estudada (0,100 g/L), independente do método de aplicação. Já o número de nematoide/g de raiz teve redução quando aplicado em parte aérea e tratamento de semente + parte aérea. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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