Reprodução de Meloidogyne javanica em olerícolas e em plantas utilizadas na adubação verde

Rosa, Juliana Magrinelli Osório; Westerich, Juliana Nogueira; Wilcken, Sílvia Renata Siciliano

doi:10.1590/s1982-56762013000200007

Cited by 33 publications

(38 citation statements)

References 4 publications

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“…M. enterolobii tem sido responsável por grandes danos em todo o país, destacando-se os prejuízos ocorridos em frutas tropicais e hortaliças. Assim, o conhecimento de seus potenciais hospedeiros é essencial para adoção de medidas preventivas e de controle, visto que sua gama de hospedeiro ainda é pouco conhecida, com exceção de algumas plantas tais como goiaba, milho, pepino, abóbora etc (MIRANDA et al, 2011;ROSA;WILCKEN, 2012;WILCKEN et al, 2013). Diante do exposto, a espécie referida é tida como uma das mais agressivas dentre as que contemplam o gênero Meloidogyne (RODRIGUEZ; GÓMEZ; PETEIRA, 2007).…”

Section: Introductionunclassified

Meloidogyne enterolobiireproduction on vegetable crops and plants used as green manure

Rosa

Westerich

Wilcken

2015

Revista Ciência Agronômica

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Section: Introductionunclassified

Meloidogyne enterolobiireproduction on vegetable crops and plants used as green manure

Rosa

Westerich

Wilcken

2015

Revista Ciência Agronômica

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“…Inomoto et al (2008) proved, in another experiment, that C. juncea (RF=0,21) ('IAC-KR-1') and C. spectabilis (RF=0,33) ('Common') are effective in reducing M. javanica population. Rosa et al (2013) studied the reproduction of M. javanica in oleraceous and in plants used for green manure; for the Mucuna sp. they verified a lower than 1 reproduction factor, with gall index and egg mass index equal to 0; however, the reproduction factor for mucuna deeringiana was 5.25, classifying this species as susceptible to nematodes.…”

Section: Resultsmentioning

confidence: 99%

Weeds Hosts of Nematodes in Sugarcane Culture

et al. 2017

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-The presence of weeds and nematodes can affect of sugarcane yield. This research evaluated whether weeds that are very frequent in mechanized harvested sugarcane can be hosts for root-knot nematodes: Meloidogyne incognita or Meloidogyne javanica. Regarding nematode hospitability, ten weed species as well as a control sample (tomato) were evaluated; they were inoculated with M. incognita and M. javanica. The plants were inoculated with 2,000 eggs and second-stage juveniles (J 2 ), and there were three plants per experimental unit (6,000 eggs and J 2 per pot -repeatition); 60 days after inoculation (DAI), the plants were removed and evaluated according to reproduction factor (RF), nematode final population (FP) and reproducibility index (RI). Regarding weed hospitability, it was found that Luffa aegyptiaca acted as a host for both nematodes, with RF > 1, which was higher than the control sample. Digitaria horizontalis was classified as a host for M. incognita and as a non-host for M. javanica. Mucuna aterrima and Crotalaria spectabilis presented the lowest RF and FP. Ricinus communis and Ipomoea triloba presented galls when inoculated with M. incognita, but were not considered host, since they presented RF < 1. None of the weed species was considered immune, i.e., with RF = 0. The lowest RF values of M. incognita (race 3) were related to Crotalaria spectabilis and Euphorbia heterophylla plants. This demonstrates the ability of crotalarias in decreasing nematode population in the field and justifies its use in several areas before planting main crops. Keywords

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“…Crotalaria spectabilis (showy crotalaria) showed an increase in cultivated area in the central region of Brazil, mainly by the control imposed on different nematodes species, beyond the availability of nitrogen in soil by biological fixation (ROSA et al, 2013). Despite this increase in cultivation, information about the tolerance of this species to the interference imposed by weeds remains scarce.…”

Section: Introductionmentioning

confidence: 99%

Selectivity of Herbicides Applied in Post-Emergence of Showy Crotalaria

et al. 2016

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-Weed control is essential to reduce or eliminate the interference of weeds on crops. Chemical control with the application of herbicides consists of the most used method, with this aim in grain producing areas. Information about the selectivity of herbicides to C. spectabilis (showy crotalaria) are scarce, which are critical for the management of this species as a crop. One field experiment was performed to evaluate the selectivity of herbicides applied in post-emergence of showy crotalaria. The herbicides bentazon (720 and 576 g ha -1 ), imazethapyr (106 and 79.5 g ha -1 ), pyrithiobac-sodium (84 g ha ) were applied in plants with four true leaves, also using a control without herbicide application. Pyrithiobac-sodium and flumiclorac isolated and the tankmix of imazethapyr + bentazon provided greater injuries to showy crotalaria, also affecting the final plant height. Pyrithiobac-sodium (84 g ha -1 ) was not selective to showy crotalaria. The herbicides imazethapyr (79.5 g ha -1), flumiclorac (sequential application), and bentazon (576 g ha -1), despite the association between clethodim + quizalofop, can be used for weed management in showy crotalaria crop.Keywords: Crotalaria spectabilis. Cover crops. Intoxication by herbicides. Weed management. SELETIVIDADE DE HERBICIDAS APLICADOS EM PÓS-EMERGÊNCIA DA CROTALÁRIARESUMO -O manejo de plantas daninhas é prática fundamental para reduzir ou eliminar a interferência da comunidade infestante sobre a espécie cultivada. O método de controle químico, por meio da aplicação de herbicidas, consiste no mais utilizado com esta finalidade em áreas de produção de larga escala. Informações de seletividade de herbicidas para C. spectabilis (crotalária) são escassas, sendo estas de suma importância para o manejo desta espécie como cultura. Um experimento de campo foi realizado para avaliar a seletividade de herbicidas aplicados em pós-emergência na crotalária. Os herbicidas bentazon (720 e 576 g ha ) foram aplicados sob plantas com quatro folhas verdadeiras, constando também entre os tratamentos testemunha sem aplicação de herbicidas. Pyrithiobac-sodium e flumiclorac isolados e a mistura entre imazethapyr + bentazon proporcionaram maiores injúrias a crotalária, afetando também a altura final das plantas. O pyrithiobac-sodium (84 g ha -1 ) não foi seletivo para a crotalária. Os herbicidas imazethapyr (79,5 g ha -1), flumiclorac (em aplicação sequencial), bentazon (576 g ha -1), além da associação entre clethodim + quizalofop podem ser utilizados para o manejo de plantas daninhas na cultura da crotalária. Palavras-chave:Crotalaria spectabilis. Culturas de cobertura. Intoxicação por herbicidas. Manejo de plantas daninhas.

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Reprodução de Meloidogyne javanica em olerícolas e em plantas utilizadas na adubação verde

Cited by 33 publications

References 4 publications

Meloidogyne enterolobiireproduction on vegetable crops and plants used as green manure

Meloidogyne enterolobiireproduction on vegetable crops and plants used as green manure

Weeds Hosts of Nematodes in Sugarcane Culture

Selectivity of Herbicides Applied in Post-Emergence of Showy Crotalaria

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