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Ana Paula Gomes de Castro,Alexandre Moura Cintra Goulart,Ednalva Patrícia de Andrade,Juvenil Enrique Cares,Daniel Diego Costa Carvalho1 한국식물병리학회 2012 Plant Pathology Journal Vol.28 No.3
Populations of plant-parasitic nematodes were evaluated in soil and root samples from areas planted with passion fruit, or covered with adjacent native cerrado vegetation, in five different cropping regions of the Brazilian Federal District. From July 2007 to January 2008, twenty samples had been collected in five Rural Centers (Núcleo Rural–NR) planted with passion fruit. In five sites, samples were also collected in native cerrado vegetation. Specimens of nine genera of plant-parasitic nematodes (Meloidogyne, Helicotylenchus, Rotylenchulus,Scutellonema, Pratylenchus, Paratylenchus, Hemicycliophora,Xiphinema and Criconemoides) were found in the present survey. Important nematode pathogens, such as Rotylenchulus reniformis and Meloidogyne spp. were observed in the passion fruit plantations throughout five major producing regions of the Brazilian Federal District.
Physiological and Molecular Characterization of Cephaleuros virescens Occurring in Mango Trees
Vasconcelos, Camila Vilela,Pereira, Fabiola Teodoro,Duarte, Elizabeth Amelia Alves,de Oliveira, Thiago Alves Santos,Peixoto, Nei,Carvalho, Daniel Diego Costa The Korean Society of Plant Pathology 2018 Plant Pathology Journal Vol.34 No.3
The objective of this work was to accomplish the isolation, molecular identification and characterizing the physiology of the causal agent of the algal spot in mango trees. For this purpose, the pathogen growth was assessed in different culture media, with subsequent observation and measurements of the filamentous cells. The molecular identification was made using mycelium obtained from leaf lesions and pure algae colonies grown in culture medium. Descriptions based on DNA sequencing indicated that the algae is Cephaleuros virescens. The algae must be isolated primarily in liquid medium for further pricking into agar medium. The highest mycelial growth average in Petri dishes occurred when the algae were grown in Trebouxia and BBM. Trebouxia enabled larger cells in the filamentous cells when compared to other culture media.
Castro, Ana Paula Gomes De,Goulart, Alexandre Moura Cintra,Andrade, Ednalva Patricia De,Cares, Juvenil Enrique,Carvalho, Daniel Diego Costa The Korean Society of Plant Pathology 2012 Plant Pathology Journal Vol.28 No.3
Populations of plant-parasitic nematodes were evaluated in soil and root samples from areas planted with passion fruit, or covered with adjacent native cerrado vegetation, in five different cropping regions of the Brazilian Federal District. From July 2007 to January 2008, twenty samples had been collected in five Rural Centers (N$\acute{u}$cleo Rural-NR) planted with passion fruit. In five sites, samples were also collected in native cerrado vegetation. Specimens of nine genera of plant-parasitic nematodes (Meloidogyne, Helicotylenchus, Rotylenchulus, Scutellonema, Pratylenchus, Paratylenchus, Hemicycliophora, Xiphinema and Criconemoides) were found in the present survey. Important nematode pathogens, such as Rotylenchulus reniformis and Meloidogyne spp. were observed in the passion fruit plantations throughout five major producing regions of the Brazilian Federal District.
Reaction of Cauliflower Genotypes to Black Rot of Crucifers
da Silva, Lincon Rafael,da Silva, Renan Cesar Dias,Cardoso, Atalita Francis,de Mello Pela, Glaucia,Carvalho, Daniel Diego Costa The Korean Society of Plant Pathology 2015 Plant Pathology Journal Vol.31 No.2
This study aimed to evaluate six cauliflower genotypes regarding their resistance to black rot and their production performance. To do so, it was conducted two field experiments in Ipameri, $Goi\acute{a}s$, Brazil, in 2012 and 2013. It was used a randomized block design, with four replications (total of 24 plots). Each plot consisted of three planting lines 2.5 m long (six plants/line), spaced 1.0 m apart, for a total area of $7.5m^2$. Evaluations of black rot severity were performed at 45 days after transplanting, this is, 75 days after sowing (DAS), and yield evaluations at 90 to 105 DAS. The Verona 184 genotype was the most resistant to black rot, showing 1.87 and 2.25% of leaf area covered by black rot symptom (LACBRS) in 2012 and 2013. However, it was not among the most productive materials. The yield of the genotypes varied between 15.14 and 25.83 t/ha in both years, Lisvera F1 (21.78 and 24.60 t/ha) and Cindy (19.95 and 23.56 t/ha) being the most productive. However, Lisvera F1 showed 6.37 and 9.37% of LACBRS and Cindy showed 14.25 and 14.87% of LACBRS in 2012 and 2013, being both considered as tolerant to black rot.
Physiological and Molecular Characterization of Cephaleuros virescens Occurring in Mango Trees
Camila Vilela Vasconcelos,Fabíola Teodoro Pereira,Elizabeth Amélia Alves Duarte,Thiago Alves Santos de Oliveira,Nei Peixoto,Daniel Diego Costa Carvalho 한국식물병리학회 2018 Plant Pathology Journal Vol.34 No.3
The objective of this work was to accomplish the isolation, molecular identification and characterizing the physiology of the causal agent of the algal spot in mango trees. For this purpose, the pathogen growth was assessed in different culture media, with subsequent observation and measurements of the filamentous cells. The molecular identification was made using mycelium obtained from leaf lesions and pure algae colonies grown in culture medium. Descriptions based on DNA sequencing indicated that the algae is Cephaleuros virescens. The algae must be isolated primarily in liquid medium for further pricking into agar medium. The highest mycelial growth average in Petri dishes occurred when the algae were grown in Trebouxia and BBM. Trebouxia enabled larger cells in the filamentous cells when compared to other culture media.
Reaction of Cauliflower Genotypes to Black Rot of Crucifers
Lincon Rafael da Silva,Renan César Dias da Silva,Atalita Francis Cardoso,Gláucia de Mello Pelá,Daniel Diego Costa Carvalho 한국식물병리학회 2015 Plant Pathology Journal Vol.31 No.2
This study aimed to evaluate six cauliflower genotypes regarding their resistance to black rot and their production performance. To do so, it was conducted two field experiments in Ipameri, Goiás, Brazil, in 2012 and 2013. It was used a randomized block design, with four replications (total of 24 plots). Each plot consisted of three planting lines 2.5 m long (six plants/line), spaced 1.0 m apart, for a total area of 7.5 m2. Evaluations of black rot severity were performed at 45 days after transplanting, this is, 75 days after sowing (DAS), and yield evaluations at 90 to 105 DAS. The Verona 184 genotype was the most resistant to black rot, showing 1.87 and 2.25% of leaf area covered by black rot symptom (LACBRS) in 2012 and 2013. However, it was not among the most productive materials. The yield of the genotypes varied between 15.14 and 25.83 t/ha in both years, Lisvera F1 (21.78 and 24.60 t/ha) and Cindy (19.95 and 23.56 t/ha) being the most productive. However, Lisvera F1 showed 6.37 and 9.37% of LACBRS and Cindy showed 14.25 and 14.87% of LACBRS in 2012 and 2013, being both considered as tolerant to black rot.