Consulta: subjectFacets:"Root-knot nematodes"
Registros recuperados: 21
Data/hora: 01/06/2024 13:48:23

Transcritos de genes de defensa acumulados en chile CM334 infectado por Nacobbus aberrans o por Meloidogyne enterolobii e inoculado con Phytophthora capsici.
Provedor de dados: 32
Autores: Villar Luna, Edgar.
El chile CM334 es resistente al oomiceto Phytophthora capsici (Pc) y a los nematodos Meloidogyne incognita, M. arenaria y M. javanica, pero susceptible a M. enterolobii (Me) y Nacobbus  aberrans (Na). La resistencia de Capsicum annuum a Pc se asocia con la acumulación de la fitoalexina sesquiterpenica capsidiol y con la sobre-expresión de varios genes de defensa. Los objetivos de este trabajo fueron: 1) conocer las modificaciones que Na y Me inducen en la expresión de algunos genes de la ruta mevalónica (HMG2, EAS,  HMG3, y SS) en plantas CM334 infectadas por Na (NaPc) o Me (MPc) e inoculadas con Pc (Pc); 2) determinar la relación entre los niveles de HMG2 y EAS en raíces de CM334 inoculadas  sólo con Na (N), con Pc (Pc) y con ambos patógenos (NPc); y 3)...
Palavras-chave: Capsicum annuum; Nematodos agalladores; QRT-PCR; Factores de transcripción; Ruta mevalónica; Root-knot nematodes; Transcription factors; Mevalonate pathway; Fitopatología; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2113

Expresión de los genes SS y CAS en chile CM-334 inoculado con Nacobbus Aberrans y con Meloidogyne incognita.
Provedor de dados: 32
Autores: García Espinoza, Jesús Antonio.
Los esteroles son compuestos que los nematodos fitopatógenos son incapaces de sintetizar y que deben obtenerlos de su hospedante. Los genes SS y CAS codifican las enzimas escualeno sintasa y cicloartenol sintasa, respectivamente, que son clave en la síntesis de esteroles en chile. Este trabajo tuvo por objetivos, comparar la expresión de ambos genes mediante PCR en tiempo real, en la interacción compatible CM-334-Nacobbus aberrans y en la incompatible CM-334-Meloidogyne incognita, a los 2, 7, 14, 21 y 28 días después de la inoculación (ddi), así como cuantificar el número de nematodos por raíz a los 2, 7, 14, 21, 28, 35 y 42 ddi. N. aberrans completó su ciclo de vida a los 42 ddi e indujo la sobreexpresión de SS y CAS hasta dos veces más que el testigo; su...
Palavras-chave: Capsicum annuum; Cicloartenol sintasa; Escualeno sintasa; Nematodos agalladores; PCR en tiempo real; Cycloartenol synthase; Real-time PCR; Root-knot nematodes; Squalene synthase; Maestría; Fitopatología.
Ano: 2011
URL: http://hdl.handle.net/10521/492

Respuesta hipersensitiva del chile CM-334 resistente a Phytophthora capsici E infectado con Nacobbus aberrans
Provedor de dados: 32
Autores: Villar Luna, Edgar.
Los objetivos de la presente investigación fueron:1) Conocer si plantas de chile,  resistentes a Phytophthora capsici, del genotipo CM-334 inoculadas con Nacobbus  aberrans responden hipersensitivamente a las inoculaciones foliares con  Pseudomonas syringae pv. tagetis y P. capsici; y 2) Comparar el contenido de  capsidiol en plantas infectadas y no infectadas con N. aberrans e inoculadas con la  bacteria o el oomiceto. En un primer experimento, se evaluaron ocho tratamientos: 1)  CM-334 con N. aberrans  (2000 J2/planta) y P. syringae (108 ufc mL-1 ) (R+N+Ps), 2)  CM-334 sólo con P. syringae (R+Ps), 3) CM-334 sólo infiltrado con agua destilada  estéril (R s/N s/Ps), 4) CM-334 con N. aberrans  y P. capsici  asperjado (105  zoosporas mL-1) (R+N+Oa), 5)...
Tipo: Tesis
Palavras-chave: Capsidiol; Fitoalexinas; Interacciones incompatibles; Mecanismos de defensa; Nematodos agalladores; Maestría; Fitopatología; Phytoalexins; Incompatible interactions; Defense mechanisms; Root-knot nematodes.
Ano: 2008
URL: http://hdl.handle.net/10521/1393

Respuesta hipersensitiva del chile CM-334 resistente a Phytophthora capsici e infectado con Nacobbus aberrans
Provedor de dados: 32
Autores: Villa Luna, Edgar.
Los objetivos de la presente investigación fueron:1) Conocer si plantas de chile,  resistentes a Phytophthora capsici, del genotipo CM-334 inoculadas con Nacobbus  aberrans responden hipersensitivamente a las inoculaciones foliares con  Pseudomonas syringae pv. tagetis y P. capsici; y 2) Comparar el contenido de  capsidiol en plantas infectadas y no infectadas con N. aberrans e inoculadas con la  bacteria o el oomiceto. En un primer experimento, se evaluaron ocho tratamientos: 1)  CM-334 con N. aberrans  (2000 J2/planta) y P. syringae (108 ufc mL-1 ) (R+N+Ps), 2)  CM-334 sólo con P. syringae (R+Ps), 3) CM-334 sólo infiltrado con agua destilada  estéril (R s/N s/Ps), 4) CM-334 con N. aberrans  y P. capsici  asperjado (105  zoosporas mL-1) (R+N+Oa), 5)...
Tipo: Tesis
Palavras-chave: Capsidiol; Fitoalexinas; Interacciones incompatibles; Mecanismos de defensa; Nematodos agalladores Capsidiol; Phytoalexins; Incompatible interactions; Defense mechanisms; Root-knot nematodes.
Ano: 2012
URL: http://hdl.handle.net/10521/1068

Expresión de los genes SS y CAS en chile CM-334 inoculado con Nacobbus Aberrans y con Meloidogyne incognita.
Provedor de dados: 32
Autores: García Espinoza, Jesús Antonio.
Los esteroles son compuestos que los nematodos fitopatógenos son incapaces de sintetizar y que deben obtenerlos de su hospedante. Los genes SS y CAS codifican las enzimas escualeno sintasa y cicloartenol sintasa, respectivamente, que son clave en la síntesis de esteroles en chile. Este trabajo tuvo por objetivos, comparar la expresión de ambos genes mediante PCR en tiempo real, en la interacción compatible CM-334-Nacobbus aberrans y en la incompatible CM-334-Meloidogyne incognita, a los 2, 7, 14, 21 y 28 días después de la inoculación (ddi), así como cuantificar el número de nematodos por raíz a los 2, 7, 14, 21, 28, 35 y 42 ddi. N. aberrans completó su ciclo de vida a los 42 ddi e indujo la sobreexpresión de SS y CAS hasta dos veces más que el testigo; su...
Palavras-chave: Capsicum annuum; Cicloartenol sintasa; Escualeno sintasa; Nematodos agalladores; PCR en tiempo real; Cycloartenol synthase; Real-time PCR; Root-knot nematodes; Squalene synthase; Maestría; Fitopatología.
Ano: 2011
URL: http://hdl.handle.net/10521/492

Reaction of vegetables and aromatic plants to Meloidogyne javanica and M. incognita
Provedor de dados: 75
Autores: Dias-Arieira,Cláudia Regina; Cunha,Tatiana PL da; Chiamolera,Fernando Marcelo; Puerari,Heriksen H; Biela,Fabio; Santana,Simone de M.
For this research we used 15 day-old seedlings which were transplanted to 2 L pots and inoculated with 4,000 nematode eggs plus juveniles (J2). After 60 days, the root systems were removed and the number of galls and eggs evaluated and used to calculate the nematode reproduction factor (RF). The tomato cv. Santa Cruz was used as a susceptible control. The experimental design was completely randomized, with six replications. Averages were compared using the Tukey or Scott-Knott test at 5%. For lettuce, Salad Bowl (Mimosa type), Elizabeth and Elisa (Lisa) and Vera cultivars (crisphead), the number of galls and the RF for M. javanica were statistically higher than for the control, whereas, for the other vegetable crops, the highest number of galls and eggs...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Vegetables; Susceptibility; Resistance; Root-knot nematodes.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200023

Application forms and mode of action of biocontroller in the management of Meloidogyne incognita in tomato
Provedor de dados: 75
Autores: Frederic,Jean B; Costa,Cândido A da; Rocha,Fernando da S; Fernandes,Maria de Fátima G.
ABSTRACT Mixture of antagonist agents and form of application may influence in the control of root-knot nematodes. Thus, the aim of this work was to study the action of a biological product based on enzyme mixtures, Bacillus sp. and Trichoderma sp., at different concentrations on hatching, motility, mortality and reproduction of Meloidogyne incognita in tomato, considering two ways of application of the product. Eggs and second-stage juveniles (J2) of M. incognita were placed in biological product solutions at concentrations: 0, 1.25, 2.5, 5, 10, 20 and 40 g L-1. The same concentrations were applied to planting pits or to the soil surface. Afterwards, 3,692 eggs of M. incognita were inoculated in tomato crop. A significant reduction in J2 hatching of M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus spp.; Trichoderma longibrachiatum; Root-knot nematodes; Enzymes; Biological control.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300254

Reproduction of Meloidogyne enterolobii in lettuce cultivars of the American group
Provedor de dados: 75
Autores: Correia,Érika CSS; Silva,Norberto; Costa,Marylia GS; Wilcken,Silvia RS.
Lettuce is the main vegetable cultivated in Brazil, in volume and in marketed value. There are ranges of diseases which may affect lettuce crops, including those caused by root-knot nematodes (Meloidogyne spp.). We evaluated the reproductive potential of Meloidogyne enterolobii in 22 lettuce cultivars. The plants were inoculated with 5,000 eggs and eventuals second stage juveniles of nematode per pot, two days after the transplanting. 'Rutgers' tomato was used as standard for inoculum viability of M. enterolobii. We evaluated, 60 days after inoculation, the gall index, egg mass index and reproduction factor (RF). The 'Ithaca', 'Raider Plus', 'RS-1397', 'L-104', 'Challenge', 'IP-11', 'Classic', 'Salinas 88', 'Vanguard 75', 'Calona' and 'Desert Queen' were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Root-knot nematodes; Plant breeding.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000200002

Isolamento de células gigantes em galhas de raízes de leguminosas por microdissecção a laser (MDL).
Provedor de dados: 14
Autores: NIELEN, S.; SA, M. F. G. de; GUIMARAES, P. M.; ARAUJO, A. C. G. de.
O desenvolvimento de novas estratégias para a produção de cultivares resistentes aos nematoides das galhas inclui o maior conhecimento de genes envolvidos no desenvolvimento de células gigantes (CG), formadoras dos sítios de alimentação, durante a infecção de plantas suscetíveis por nematoides da galha. A análise transcricional baseada em todo o tecido da raiz ou da galha formada pelo parasita resulta na identificação de numerosos genes diferencialmente expressos. Para identificar genes específicos da interação planta-nematoides formadores de galhas (NFG) e genes de suscetibilidade que possibilitam a infecção, uma abordagem promissora é estudar o transcritoma específico das CGs. Neste estudo, a técnica de microdissecção a laser foi estabelecida para...
Tipo: Folhetos
Palavras-chave: Microdissecção a laser; Laser microdissection; Single-cell transcriptome; Nematoides das galhas; Transcritoma célula-específico; Células gigantes; Soja; Amendoim; Root-knot nematodes; Giant cells; Soybeans; Peanuts.
Ano: 2023
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1152268

Levantamento do nematoide-das-galhas (Meloidogyne spp.) em cafeeiros no Triângulo Mineiro-MG, Brasil: ocorrência restrita de M. izalcoensis.
Provedor de dados: 14
Autores: ALMEIDA, S. F. de; STEFANELO, D. R.; SANTOS, M. F. A. dos; SOUSA, G. P.; MAIA, Y. M.; CARES, J. E.; CARNEIRO, R. M. D. G.
Os nematoides-das-galhas (NGs), Meloidogyne spp., são considerados importantes patógenos da cultura do café que podem limitar a produção e causar perdas econômicas. Meloidogyne izalcoensis foi recentemente detectada no Brasil parasitando cafeeiros no Triângulo Mineiro, MG. Com objetivo de determinar a distribuição desses nematoides nessa região, foi realizado um levantamento em cafezais nos municípios de Araguari e Indianópolis, próximo à região da primeira detecção de M. izalcoensis na cultura no país. No início das identificações das espécies, o perfil de esterases foi usado, no entanto, o emprego da técnica eletroforese com a referida isoenzima foi limitante na detecção de M. exigua, pela frequente ausência de bandas em amostras com sintomas radiculares...
Tipo: Folhetos
Palavras-chave: Marcadores SCAR; Endoparasita; Coffee plants; SCAR markers; Praga; Root-knot nematodes.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1150408

Response of lettuce cultivars to Meloidogyne javanica and Meloidogyne incognita race 1 and 2
Provedor de dados: 124
Autores: Correia,Érika Cristina Souza da Silva; Silva,Norberto da; Costa,Marylia Gabriella Silva; Wilcken,Silvia Renata Siciliano.
ABSTRACT The aim of this study was to evaluate resistance to Meloidogyne javanica and Meloidogyne incognita race 1 and 2 in the American group of lettuce cultivars. Two days after transplanting, the plants were inoculated with 5,000 eggs and potential second-stage juveniles of the nematode under test per pot. The Rutgers tomato was used as the standard for the viability of Meloidogyne javanica and Meloidogyne incognita race 1 and 2. The variables to be evaluated were gall index, egg mass index and nematode reproduction factor, which were evaluated 60 days after inoculation. The results showed that the Ithaca, RS-1397, Raider Plus, Challenge, L-104, IP-11, Salinas 88, Calona, Desert Queen, Classic and Vanguard 75 cultivars were resistant to Meloidogyne...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa L.; Root-knot nematodes; Reproduction factor.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100100

Histopathological characterization of Coffea arabica cultivar IPR 106 resistance to Meloidogyne paranaensis
Provedor de dados: 63
Autores: Shigueoka,Luciana Harumi; Dorigo,Orazília França; Arita,Lucas Yuuki; Fonseca,Inês Cristina de Batista; Silva,Santino Aleandro da; Sera,Gustavo Hiroshi; Machado,Andressa Cristina Zamboni.
ABSTRACT: Meloidogyne species are widely distributed in coffee growing areas in Brazil, where M. paranaensis is responsible to significant losses to the crop. One of the main management strategies is the use of resistant cultivars, such as Apoatã rootstock and cultivars IPR 100 and IPR 106. However, the parasitic relationship between coffee and M. paranaensis in cultivars carrying resistance genes has been poorly understood. The objective of this paper was to characterize the resistance response of Coffea arabica cv. IPR 106 to M. paranaensis. For this, penetration and histopathological studies were carried out using root tissues parasitized by the nematode. ‘IPR 106’ and ‘Mundo Novo’ (susceptible cultivar) seedlings were inoculated with 4,000 eggs of M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Management; Root-knot nematodes; Giant cells.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500434

Clonal Arabica coffee resistant to Meloidogyne paranaensis and damage threshold on plants development
Provedor de dados: 63
Autores: Fatobene,Bárbhara Joana dos Reis; Gonçalves,Wallace; Oliveira,Claudio Marcelo Gonçalves; Guerreiro Filho,Oliveiro.
ABSTRACT: Plants of Coffea arabica Icatu IAC 925 germplasm show resistance to Meloidogyne paranaensis under field conditions, but with variable rates of segregation. One mother plant, IAC 3, of Icatu IAC 925 was evaluated under controlled conditions through the reaction of its clones, obtained by somatic embryogenesis. Reproduction of nematodes in clones were compared with an open-pollinated progeny from the same mother plant, C. arabica cultivar Mundo Novo IAC 515-20, susceptible to nematodes, and Clone IAC 1, also susceptible and obtained by somatic embryogenesis. Open-pollinated progeny showed segregation to resistance and was classified as susceptible according to the reproduction factor. The average number of nematodes (eggs and J2) per gram of roots...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root-knot nematodes; Resistant variety; Somatic embryogenesis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300227

Immunolocalisation of secreted-excreted products of Meloidogyne spp. using polyclonal and monoclonal antibodies
Provedor de dados: 102
Autores: Lima,Liziane M.; Grossi-de-Sa,Maria F.; Pereira,Railene A.; Curtis,Rosane H.C.
Molecules expressed at the surface cuticle (SC) of plant parasitic nematodes represent the primary plant-nematode interface, and together with secreted-excreted (S-E) products are probably the first signals perceived by the host. These molecules, which are released into plant tissue, probably play important roles in the host-parasite interactions. Characterisation of these antigens will help in the identification of nematode targets useful for novel control strategies, which interfere with the nematode infection of plants. Three monoclonal (MAbs) and three polyclonal (PAbs) antibodies produced to S-E products of Meloidogyne spp. and Heterodera avenae were used to examine their reactivity towards M. incognita and/or M. arenaria second stage juveniles and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root-knot nematodes; Surface coat; Amphid; Subventral and phasmidial glands; Oesophagus.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000600010

Uso de agentes microbianos e químico para o controle de Meloidogyne incognita em soja - doi: 10.4025/actasciagron.v32i3.2166
Provedor de dados: 1
Autores: Nunes, Henrique Teixeira; Programa de Pós-Graduação em Microbiologia Agropecuária - FCAV/UNESP - Jaboticabal, SP; Monteiro, Antonio Carlos; Departamento de Produção Vegetal - FCAV/UNESP - JABOTICABAL, SP; Pomela, Alan William Vilela; Sementes Farroupilha.
Nematoides de galhas constituem importante grupo de patógenos da cultura da soja e o manejo integrado é uma das principais medidas de controle que visam à redução de perdas econômicas. Neste trabalho foi avaliada a eficácia dos fungos Paecilomyces lilacinus (Thom.) Samsom e Pochonia chlamydosporia (Goddard) Zare &amp; Gams (sinonímia Verticillium chlamydosporium), de um produto comercial à base de Bacillus sp. (Nemix) e do nematicida químico Aldicarb no controle de Meloidogyne incognita em soja, variedade M-SOY 6101. O experimento foi realizado em casa-de-vegetação no delineamento experimental de blocos casualizados com nove tratamentos (três produtos biológicos usados no tratamento de sementes com ou sem a aplicação em pós-emergência, Aldicarb aplicado...
Palavras-chave: 5.01.02.04-4 Glycine Max; Paecilomyces lilacinus; Pochonia chlamydosporia; Bacillus; Aldicarb; Fitonematoide 5.01.02.00-1 Glycine max; Paecilomyces lilacinus; Pochonia chlamydosporia; Bacillus; Aldicarb; Root-knot nematodes.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2166

Expression of hydroxymethylglutaryl-coa reductase 2 (HMG2) gene in chilli (Capsicum annuum L.) CM334 infected by Nacobbus aberrans and Phytophthora capsici
Provedor de dados: 115
Autores: Villar-Luna,Edgar; Rojas-Martínez,Reyna I.; Reyes-Trejo,Benito; Rocha-Sosa,Mario; Zavaleta-Mejía,Emma.
Plants of chilli Capsicum annuum L. CM334 show a high level of resistance to Phytophthora capsici, but are susceptible to Nacobbus aberrans; such resistance has been associated with capsidiol accumulation, a sesquiterpene phytoalexin. In the present study the expression of hydroxymethylglutaryl-CoA reductase 2 gene (HMG2, associated with sesquiterpene phytoalexins biosynthesis) in CM334 chilli roots inoculated with N. aberrans and in combination with P. capsici, was determined by qRT-PCR. The levels of HMG2 transcripts were significantly reduced (p≤0.05) from -1.57 to -1.28-fold in the interaction CM334/N. aberrans; whereas in roots inoculated only with the oomycete, the accumulation of transcripts occurred earlier and at higher levels (1.52 to 3.54-fold)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Capsidiol; Real-time PCR; Root-knot nematodes.
Ano: 2015
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000100005

Yield responses of 12 okra cultivars to southern root-knot nematode (Meloidogyne incognita)
Provedor de dados: 53
Autores: Mukhtar,Tariq; Hussain,Muhammad Arshad; Kayani,Muhammad Zameer.
ABSTRACT Meloidogyne incognita is one of the most widespread and damaging plant-parasitic nematodes throughout the world and substantially affects growth and yield of okra (Abelmoschus esculentus L). In the present study, effects of M. incognita on yield parameters of 12 okra cultivars with varying levels of resistance or susceptibility were assessed. M. incognita caused significant reductions in yield parameters of okra plants of all the cultivars. Maximum reduction of 34.1% in yield was observed in highly susceptible (HS) cultivar Sharmeeli. The nematode caused 20 and 17.6% reductions in yields in susceptible (S) cultivars Okra Sindha and Anmol, respectively. Moderately susceptible (MS) cultivars suffered 5.9 to 12.9% reductions in yields. In case of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abelmoschus esculentus; Root-knot nematodes; Growth variables; Genotypes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000100108

Native-plant hosts of Meloidogyne spp. from Western Paraná, Brazil
Provedor de dados: 52
Autores: Antes,Vanessa A.; Comerlato,Anna P.; Schuelter,Adílson Ricken; Carneiro,Regina M.D.G.; Furlanetto,Cleber.
The present study was focused on the parasitism of Meloidogyne species on the roots of native nursery plants from the Atlantic forest. Native plants were selected from a commercial nursery in Western Paraná, searching for the natural infection of Meloidogyne. Also, the seeds of native plants were cultivated in sterile soil and inoculated with M. incognita. In both the experiments, the number of galls and number of eggs and J2 per root, allied to the reproduction factor of M. incognita on each inoculated plant were assessed. Natural infection by M. javanica was found on Cordia ecalyculata, Citharexyllum myrianthum and Aspidosperma subincanum and by M. incognita on Croton urucurana, Lonchocarpus muehlbergianus, Tabebuia impetiginosa and T. serratifolia....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Native-plants; Root-knot nematodes.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200005

Influence of dry leaves of common tree and shrub species from southern Chile on the growth of lettuce infected with Meloidogyne hapla
Provedor de dados: 118
Autores: Arismendi,Nolberto; Böhm,Laura.
Extracts of many plant species have shown nematicide activity attributable to phytochemicals present in their tissues or formed during a degradation process. Nevertheless, before the application of plant compounds in the field, it is necessary to know their effect on plant hosts. Three concentrations (1, 2.5 and 5% w/w) of dry leaves of Buddleja globosa, Drymis winteri, Eucalyptus globulus, Gevuina avellana, Laurelia sempervirens and Ugni molinae were evaluated on growth parameters (plant height, root length and leaf dry matter) in plants of Lactuca sativa infested with Meloidogyne hapla. Lettuce growth parameters were significantly affected by the interaction between the species and dry leaf tissues concentrations. Drymis winteri showed the biggest...
Tipo: Journal article
Palavras-chave: Forestry species; Lactuca sativa; Meloidogyne hapla; Organic amendment; Root-knot nematodes.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100007

Soil amendment with chopped or ground dry leaves of six species of plants for the control of Meloidogyne javanica in tomato under greenhouse conditions
Provedor de dados: 65
Autores: Lopes,Everaldo Antônio; Ferraz,Silamar; Ferreira,Paulo Afonso; Freitas,Leandro Grassi de; Dallemole-Giaretta,Rosangela.
Greenhouse experiments were conducted to evaluate the effect of soil amendment with chopped (1cm²) or ground (1mm sieve) dry leaves of assa-peixe (Vernonia polyanthes), lemon-grass (Cymbopogon citratus), eucalyptus (Eucalyptus citriodora), castor (Ricinus communis), mango (Mangifera indica) or neem (Azadirachta indica) for the control Meloidogyne javanica. Into the soil (Yellow red oxisol) of each pot were added leaves (5g kg-1 of soil) and 5,000 eggs of the nematode. After seven days, one tomato seedling "Santa Cruz Kada" was transplanted to each pot. The tomato root weight, galls and eggs/root system were determined 60 days after transplant. None of the soil amendments reduced gall or eggs, when applied as leaf pieces. However, all tested plant species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root-knot nematodes; Organic amendment; Castor; Neem; Eucalyptus; Lemon-grass; Mango and assa-peixe.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000600003

INFLUENCE OF ROOTSTOCKS ON Fusarium WILT, NEMATODE INFESTATION, YIELD AND FRUIT QUALITY IN WATERMELON PRODUCTION
Provedor de dados: 64
Autores: Álvarez-Hernández,Juan Carlos; Castellanos-Ramos,Javier Zaragoza; Aguirre-Mancilla,César Leobardo; Huitrón-Ramírez,María Victoria; Camacho-Ferre,Francisco.
Cucurbita maxima x Cucurbita moschata rootstock are used to prevent infection with Fusarium oxysporum f. sp. niveum in watermelon production; however, this rootstock is not effective against nematode attack. Because of their vigor, the grafted plants can be planted at lower plant densities than the non-grafted plants. The tolerance to Fusarium oxysporum f. sp. niveum and Meloidogyne incognita was assessed in watermelon plants grafted onto a hybrid of Citrullus lanatus cv Robusta or the Cucurbita maxima x Cucurbita moschata cv Super Shintoza rootstocks. The densities of plants were 2083 and 4166 plants ha-1. Non-grafted watermelons were the controls. The Crunchy Red and Sangría watermelon cultivars were used as the scions, it the latter as a pollinator. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrullus lanatus; Grafting; Triploid; Fusarium oxysporum; Root-knot nematodes.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400323