|
|
|
| Registros recuperados: 30 | |
|
|
| Mohamed, Moawad. |
| A field study was set up at Kafre – Hakim village, Giza, Governorate, Egypt, to compare the protective value of applying environmental friendly compounds with a known chemical nematicide, oxamyl, for controlling the nematode Meloidogyne incognita infecting sunflower cv. Sakha 53 and their effects on crop production and oil contents. These compounds were 1) furfural,a natural nematicide, 2) amino green 11, commercial formula of amino acids, 3) NPK, an inorganic fertilizer. Data revealed that all the tested treatments resulted in variable significant decrease in root knot disease incidence associated with improvement in crop yield except the plants treated with furfural plus amino green 11 that showed significant decrease in percentage of oil content. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root-knot nematode; Meloidogyne incognita; Amino acids; Furfural; Oxamyl; Eggplant.. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4422 |
| |
|
|
| OLIVEIRA,DENILSON F.; SANTOS JÚNIOR,HELVÉCIO M. DOS; NUNES,ALEXANDRO S.; CAMPOS,VICENTE P.; PINHO,RENATA S.C. DE; GAJO,GIOVANNA C.. |
| To contribute to the development of products to controlMeloidogyne exigua, the bacteria Bacillus cereus and B. subtilis were cultivated in liquid medium to produce metabolites active against this plant-parasitic nematode. Fractionation of the crude dichloromethane extracts obtained from the cultures afforded uracil, 9H-purine and dihydrouracil. All compounds were active against M. exigua, the latter being the most efficient. This substance presented a LC50 of 204 µg/mL against the nematode, while a LC50 of 260 µg/mL was observed for the commercial nematicide carbofuran. A search for protein-ligand complexes in which the ligands were structurally similar to dihydrouracil resulted in the selection of phosphoribosyltransferases, the sequences of which were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 9H-purine; Dihydrouracil; Molecular modelling; Nematicidal activity; Root-knot nematode; Uracil. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200525 |
| |
|
|
| Gomes,Jorge Augusto Assis; Andrade Júnior,Valter Carvalho; Oliveira,Celso Mattes de; Azevedo,Alcinei Mistico; Maluf,Wilson Roberto; Gomes,Luiz Antonio Augusto. |
| The objective of this study was to evaluate sweet potato clones for resistance to root-knot nematode, Meloidogyne incognita races 1 and 3. For each nematode physiological race, a greenhouse experiment was set up in a randomized block experimental design with three replications and six plants per plot. Fifty-eight sweet potato clones from the UFVJM germplasm bank were evaluated, plus five commercial cultivars (Brazlândia Rosada, Brazlândia Branca, Palmas, Princesa and Coquinho), plus the cv. Santa Clara tomato (susceptible to Meloidogyne spp.). Stems were planted in 72-cell expanded polystyrene trays, filled with commercial substrate and inoculated with the pathogen thirty days after planting. Forty-five days after inoculation, the eggs were extracted,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea batatas; Root-knot nematode; Breeding; Pathogen; Reproduction factor; Reproduction index. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000300291 |
| |
|
|
| Shigueoka,Luciana Harumi; Sera,Gustavo Hiroshi; Sera,Tumoru; Fonseca,Inês Cristina de Batista; Andreazi,Elder; Carvalho,Filipe Gimenez; Carducci,Fernando Cesar; Ito,Dhalton Shiguer. |
| ABSTRACT The aim of this study was to evaluate the reaction of Arabica coffee progenies derived from Icatu to Meloidogyne paranaensis. The experiment was conducted under screenhouse conditions at Instituto Agronômico do Paraná (IAPAR) in Londrina, Paraná State, Brazil. Seedlings with three to four pairs of leaves were inoculated with 5,000 M. paranaensis eggs and second-stage juveniles (J2). Four F4 progenies of HN 87609 derived from Icatu H4782-7-925 were evaluated. C. arabica cv. Catuaí Vermelho IAC 81 and C. arabica cv. IPR 100 were susceptible and resistant checks, respectively. The experiment was conducted in a randomized blocks design with 14 replications of one plant per plot. Assessments were performed 120 days after inoculation. The number of eggs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Breeding; Root-knot nematode; Resistance. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200193 |
| |
|
|
| LORDELLO,RUBENS RODOLFO ALBUQUERQUE; LORDELLO,ANA INES LUCENA; GODOY,IGNÁCIO JOSÉ DE. |
| The root-knot nematode Meloidogyne javanica (Treub, 1885) Chitwood, 1949, was identified in roots, nodules and shells of peanut plants (Arachis hypogaea L.), cv. Florman-INTA, collected from a field in Menno colony, Chaco Central region of Paraguay. Infected plants were observed in patches, showing wilting and drying of vegetative parts. Peanut had been grown ininterruptly for many years in the same area and patches had already been observed in the preceding year in cv. Starr. Nematodes collected from roots in this field reproduced on tomato cultivar rutgers and peanut cultivar florunner and produced egg-masses on roots, nodules and shells of cultivar Florman. This is the first report on M. javanica parasiting peanut in Paraguay. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Root-knot nematode; Meloidogyne javanica; Peanut; Arachis hypogaea; Occurrence; Damage; Host; Nodules; Shells; Meloidogyne javanica; Arachis hypogaea. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051997000100009 |
| |
|
| |
|
|
| Silva,Rodrigo Vieira; Oliveira,Rosângela D’Arc de Lima; Ferreira,Patrícia da Silva; Castro,Douglas Barbosa; Rodrigues,Fabrício Ávila. |
| Considering that the root-knot nematode Meloidogyne exigua has caused great yield losses to coffee production in Brazil, this study aimed to determine whether the penetration and the reproduction events of this nematode on the roots of plants from two coffee cultivars with different levels of basal resistance to this nematode could be affected by silicon (Si). Coffee plants from the cultivars Catuaí and IAPAR 59, which are susceptible and resistant, respectively, to M. exigua, were grown in pots containing Si-deficient soil that was amended with either calcium silicate (+Si) or calcium carbonate (–Si). The Si concentration on the root tissue significantly increased by 159 and 97% for the +Si plants from the cultivars Catuaí and IAPAR 59, respectively,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Host resistance; Plant nutrition; Root-knot nematode. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000200196 |
| |
|
|
| Chaves,Andréa; Pedrosa,Elvira Maria Régis; Pimentel,Rejane Magalhães de Mendonça; Coelho,Rildo Sartori Barbosa; Guimarães,Lílian Margarete Paes; Maranhão,Sandra Roberta Vaz Lira. |
| The effects of Coda Radimax (CR), Coda Humus-PK (CH) and Coda Vit (CV) on the induction of resistance for Meloidogyne incognita in sugarcane (Saccharum sp.) varieties (RB92579, RB863129, RB867515) through nematode reproduction, plant development and root anatomy analysis, emphasizing the differences of the lignin deposition, and cortex-vascular cylinder proportions were investigated. In 90 days after inoculation with eggs of M. incognita, CR reduced the number of eggs per root system in all the sugarcane varieties; CH and CV reduced eggs density in RB867515; CR increased stalk number in RB92579 and fresh weight of shoots in RB863129 and RB92579; CH increased plant height in RB92579 and fresh weight of shoots in RB92579 and RB867515, CV affected fresh weigh... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Phosphites; Root-knot nematode; Root anatomy; Meloidogyne. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600011 |
| |
|
| |
|
| |
|
|
| Oliveira,Camilla Martins de; Souza Junior,Ismail Teodoro; Araújo Filho,Jerônimo Vieira de; Freitas,Marcos Augusto de; Rocha,Mara Rúbia da; Petrofeza,Silvana. |
| ABSTRACT: Soybean is a commodity of great economic importance worldwide, particularly in Brazil, world’s second largest producer. Nematodes, especially those of the Meloidogyne genus, severely limit productivity. Identification of nematode species is important for effective soybean management. Here, 26 populations of root-knot nematode (Meloidogyne spp.) from 15 municipalities in the states of Bahia, Mato Grosso, Goias, and Minas Gerais were characterized based on the morphology of the female perineal region, esterase profile, and identification based on amplification of specific regions of the population genome. Among the Meloidogyne spp. populations obtained, M. incognita and M. javanica, were identified. No mixed populations were present in the samples.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root-knot nematode; Glycine max; Esterase; Molecular identification. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500151 |
| |
|
|
| Montalvão,Sandro Coelho Linhares; Castro,Marcelo Tavares de; Soares,Carlos Marcelo Silveira; Blum,Luiz Eduardo Bassay; Monnerat,Rose Gomes. |
| ABSTRACT: The cotton plant (Gossypium hirsutum) is affected by several diseases of economic importance, among them root-knot nematode (Meloidogyne incognita races 3 and 4). Methods to control this disease include the application of nematicides, solarization, deep plowing, crop rotation and use of antagonistic microorganisms. Among species of Bacillus, there are strains that act as bioregulators and antagonists of several pathogens. Tests to identify these strains are hampered by the difficulty of obtaining large populations of the pathogen and by the time of execution of the in vivo tests that should be conducted for about 90 days. The objective of this research was to compare the toxicity of B. thuringiensis strains to two nematodes, M. incognita and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biocontrol; Phytonematode; Root-knot nematode; Rhizobacteria. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700151 |
| |
|
|
| Silva,Alysson J da; Oliveira,Gustavo HF de; Pastoriza,Rhuan JG; Maranhão,Eduardo HA; Pedrosa,Elvira MR; Maranhão,Sandra RVL; Boiteux,Leonardo S; Pinheiro,Jadir B; Carvalho Filho,José Luiz S de. |
| ABSTRACT Meloidogyne enterolobii (=M. mayaguensis) is an emerging plant pathogen capable of inducing root galls and yield reduction in a wide range of host species. This pathogen has also been reported as a global threat for tomato (Solanum lycopersicum) crop production mainly due to its ability to overcome the resistance meditated by the Mi-1 gene. Despite the potential importance of this nematode, sources of resistance to M. enterolobii are not yet available for breeding purposes. The main objective of the present work was to evaluate a large Solanum (section Lycopersicum) germplasm (comprising nine species and one botanic variety) aiming to identify useful sources of resistance to M. enterolobii. In the first screening assay, 101 accessions and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum spp.; Germplasm; Screening; Root-knot nematode. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000200188 |
| |
|
|
| Wilcken,Silvia Renata S; Rosa,Juliana MO; Westerich,Juliana N; Garcia,Maria José de M; Cardoso,Antonio Ismael Inácio. |
| This study aimed to determine the resistance of six rootstocks for cucumber (squash 'Menina Brasileira', pumpkin 'Exposição', 'Shelper', 'Tetsukabuto Takaiama', 'B8-A Tetsukabuto' and 'Excite Ikki') and four Japanese cucumber hybrids ('Yoshinari', 'Kouki', 'Taisho' and 'Tsuyataro') to Meloidogyne enterolobii. The experiment was conducted in greenhouse; each plot consisted of one plant per pot containing 2 liters of autoclaved soil. The experimental design was completely randomized, with five replicates per treatment. Two days after transplanting the seedlings, each plant was inoculated with 5,000 eggs and second-stage juveniles (initial population = Pi) of M. enterolobii. Tomato 'Rutgers' was used as indicative of inoculum viability. Sixty days after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis sativus; Cucurbita moschata; Cucurbita maxima; Root-knot nematode; Grafting. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000400018 |
| |
|
|
| Carvalho Filho,José Luiz S de; Gomes,Luiz Antonio A; Biguzzi,Felipe A; Maluf,Wilson Roberto; Ferreira,Sindynara. |
| The objective of this study was to evaluate yield, commercial characteristics, tolerance to early bolting and resistance to the root-knot nematode Meloidogyne incognita race 1 in 25 F4 families of crispleaf lettuce, obtained out of crosses between cultivars Grand Rapids, Regina 71, and Verônica. In the first experiment, we evaluate leaf blade and borders characteristics, aboveground fresh weight, and number of days from sowing to the anthesis of first flower (tolerance to early bolting). In the second experiment, we evaluated the resistance to Meloidogyne incognita race 1 via gall index and number of galls and egg masses per root system. Five families had scores for leaf blade and borders similar to cultivars Verônica and Grand Rapids. Furthermore, 84% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa L; Breeding; Root-knot nematode. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300013 |
| |
|
|
| Cardoso,Jéssica; Tonelli,Luiza; Kutz,Talita S; Brandelero,Fernanda D; Vargas,Thiago de O; Dallemole-Giaretta,Rosangela. |
| ABSTRACT Intensive production of vegetables in greenhouses can increase the amount of inoculum of soil-borne pathogens, such as the root-knot nematode. Thus, in this study we aimed to evaluate the potential of Solanaceae as rootstocks resistant to Meloidogyne javanica nematodes as an alternative to tomato grafting. The experiment consisted of seven treatments: wild species joá-vermelho (Solanum capsicoides), joá-bagudo (Solanum palinacanthum), joá-bravo (Solanum viarum), jurubeba (Solanum spp.) and the commercial tomato cultivars Santa Cruz Kada, Batalha and Guardião. The analyzed variables were gall index; egg mass index; final nematode population; reproduction factor (FR) and reaction: susceptibility, resistance and immunity; fresh shoot and root mass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Root-knot nematode; Grafting; Resistance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100017 |
| |
|
|
| Ferreira,Júlio CA; Hernandes,Isabela; Brito,Olívia DC; Cardoso,Michelly R; Dias-Arieira,Claudia R. |
| ABSTRACT Root-knot nematodes are among the major phytosanitary problems on vegetables, and the use of organic matter can be a viable method to control this parasite. Thus, in the present study we aimed to investigate in a greenhouse the use of bokashi doses (organic compound produced by fermentation of grain mixtures) in the control of Meloidogyne javanica in lettuce. Substrate infestation was carried out using tomato seedlings transplanted into pots containing 2 kg of autoclaved soil and inoculated with 2000 eggs and eventual second stage juveniles. After 60 days, the aerial part of the tomato plant was discarded and lettuce seedlings of cv. Vera were transplanted, adding bokashi at doses of 0, 5, 10 and 20 g/pot. One second treatment consisted in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Organic matter; Root-knot nematode; Management.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200224 |
| |
|
|
| Toninato,Bruna O; Souza,Dablieny HG; Pontalti,Paulo R; Lopes,Ana Paula Mendes; Dias-Arieira,Claúdia R. |
| ABSTRACT Root-knot nematodes limit lettuce crop productivity. Efficient control is achieved through integrated management, and research about the efficiency of new products for nutrition and biological control is required. Thus, the objective of this study was to evaluate the effect of fertilizers, applied alone or in combination with microorganisms based product on the control of Meloidogyne javanica in lettuce. In the first research (research 1), conducted at two different periods, the products Agro-Mos®, Soil-SetTM and Copper-Crop® applied on shoots were evaluated; in research 2, the same products were applied isolated on shoots or associated to NemOutTM (Bacillus licheniformis, B. subtilis and Trichoderma longibrachiatum) applied to the soil. In... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Alternative control; Root-knot nematode; Integrated management. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400384 |
| |
|
|
| Silva,Edgard Henrique Costa; Soares,Renato Silva; Borges,Heloísa Oliveira; Franco,Carolina Andrade; Braz,Leila Trevisan; Soares,Pedro Luiz Martins. |
| Abstract: The objective of this work was to estimate the damage caused by Meloidogyne enterolobii in okra (Abelmoschus esculentus) and to verify the reliability of the reproduction factor as a suitable measure for selecting resistant okra genotypes. Increasing populations of M. enterolobii - 0, 500, 1,500, 3,000, 5,000, and 7,000 eggs and second-stage juveniles (J2) per plant, - were evaluated, in a completely randomized design. The pathogen showed a parasitism pattern similar to that of M. incognita, causing a significant decrease in morphological and agronomic traits. The pathogen reproduction factor should be used in the selection of okra genotypes for tolerance to M. enterolobii, in populations above 3,000 eggs or J2. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abelmoschus esculentus; Reproduction factor; Root-knot nematode; Susceptible host. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102900 |
| |
|
|
| BELLÉ,C.; KASPARY,T.E.; BALARDIN,R.R.; RAMOS,R.F.; ANTONIOLLI,Z.I.. |
| ABSTRACT: The frequency of species of root-knot nematodes (Meloidogyne spp.) was evaluated in weeds collected in different fallow farms in the State of Rio Grande do Sul, Brazil. In the samples where the nematode was found, the species of the root-knot nematode was identified by electrophoresis using the isozyme esterase. They were obtained from weeds belonging to 24 weed species from 13 different botanical families: Amaranthaceae, Asteraceae, Commelinaceae, Convovulaceae, Cyperaceae, Euphorbiaceae, Lamiaceae, Malvaceae, Oxalidaceae, Poaceae, Portulacaceae, Solanaceae, Verbenaceae. Meloidogyne javanica Est J3 (Rm: 1.0, 1.25, 1.40) was the most frequent species and occurred in 53.3% of the samples. M. arenaria with phenotype Est. A2 (Rm: 1.20, 1.30) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root-knot nematode; Weed plants; Isozyme esterase; Characterization; Hostability. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100292 |
| |
| Registros recuperados: 30 | |
|
|
|
