Results 11 to 20 of about 3,007 (152)

Ocorrência de variabilidade genética interlesão em Pyricularia grisea

Agropecuária Catarinense, 2021
A principal doença da cultura do arroz é a brusone, causada pelo fungo Pyricularia grisea (Cooke) Sacc., que pode apresentar variabilidade genética tanto entre cepas isoladas de diferentes locais ou lesões quanto entre cepas oriundas de uma mesma lesão ...
Maycon Eduardo Nicoletti, Leonardo Bitencourt Scoz, Ana Paula Boni, Fernando Adami Tcacenco   +3 more
doaj   +3 more sources

Novel insights into host specificity of Pyricularia oryzae and Pyricularia grisea in the infection of gramineous plant roots. [PDF]

Mol Plant Pathol, 2022
Abstract Pyricularia oryzae and Pyricularia grisea are pathogens that cause blast disease in various monocots. It has been reported that P.
Xiang Z, Okada D, Asuke S, Nakayashiki H, Ikeda K.   +4 more
europepmc   +3 more sources

In vivo effect of some fungicides on the development of Pyricularia grisea and Helminthosporium oryzae

Phytopathologia Mediterranea, 2002
The effect of various fungicide treatments of seeds and leaves of rice on the development of the pathogenic fungi Pyricularia grisea and Helminthosporium oryzae was studied.
A. Douira, A. Mouria, A. Ouazzani Touhami, S. Serghat   +3 more
doaj   +2 more sources

GENETIC AND MOLECULAR CHARACTERIZATION OF POPULATIONS OF Pyricularia grisea FROM RICE

Acta Scientiarum Polonorum: Hortorum Cultus, 2015
Pyricularia grisea, the causal agent blast disease in rice, is considered as one of the most important fungus in paddy fields. Isolates of Pyricularia grisea were analyzed by SSR to determine the amount of genetic variability in populations.
Mohammad Reza Safari Motlagh, Fatemeh Habibi, Ali Akbar Ebadi   +2 more
doaj   +1 more source

Expression of resistance in rice hybrids to Pyricularia grisea [PDF]

Fitopatologia Brasileira, 2002
Thirty-nine rice (Oryza sativa) hybrids and their restorers were assessed for vertical resistance to Pyricularia grisea in the rice blast nursery, and in artificial inoculation tests with two pathotypes, under controlled greenhouse conditions. The hybrids were developed from cytoplasmic genetic male sterile lines 046I and IR 58025A, derived from WA ...
PRABHU, ANNE S., GUIMARÃES, ELCIO P., FILIPPI, MARTA C., ARAUJO, LEILA G., CUTRIM, VERIDIANO A.   +4 more
openaire   +3 more sources

Eficiência da disseminação aérea em Pyricularia grisea [PDF]

Summa Phytopathologica, 2007
Pyricularia grisea (teleomorfa Magnaporthe grisea) é um patógeno que infecta mais de 80 gramíneas. No Brasil ataca importantes culturas como arroz e trigo, causando a brusone. Mais recentemente foi reportada na triticale, cultura alternativa para os produtores de trigo no sul do estado de São Paulo. Um dos principais meios de disseminação da doença é a
Urashima, Alfredo Seiiti, Leite, Sabrina Ferreira, Galbieri, Rafael   +2 more
openaire   +3 more sources

GENETIC DIVERSITY OF Pyricularia grisea, THE CAUSAL AGENT OF RICE BLAST BY SRR

Acta Scientiarum Polonorum: Hortorum Cultus, 2015
Pyricularia grisea, the rice blast fungus is the main pathological threats to rice crop in Iran and worldwide. In this research was evaluated the genetic diversity of P.
Mohammad Reza Safari Motlagh, Fatemeh Hbibi, Ali Akbar Ebadi   +2 more
doaj   +1 more source

Pathotypes of Pyricularia grisea in Rice Fields of Central and Southern China [PDF]

Plant Disease, 2001
Blast, caused by the fungal pathogen Pyricularia grisea, is the most devastating disease of rice worldwide. Knowledge of the pathotype composition of the pathogen in rice fields is essential for rational deployment of resistance genes in rice breeding programs. In this study, we assayed the pathotypes of the pathogen populations using samples recently
H L, Chen, B T, Chen, D P, Zhang, Y F, Xie, Qifa, Zhang   +4 more
openaire   +2 more sources

VEGETATIVE COMPATIBILITY GROUPS OF PHYSIOLOGICAL RACES OF PYRICULARIA GRISEA IN Egypt [PDF]

Egyptian Journal of Agricultural Research, 2013
One hundred forty Pyricularia grisea isolates were collected from the six main rice growing governorates; Kafrelsheikh, Beheira, Sharkia, Gharbia, Dakahlia and Damietta, and from different research stations during 2008, 2009 and 2010 growing seasons. The isolates were identified to their group races as IA (1); IB (12); IC (15); ID (45); IE (1); IF (4);
SALAH M. EL-WAHSH, RAMADAN A. ARAFA, AMRO.R. EMERAN, ELSAYED F. MASHAAL   +3 more
openaire   +1 more source

Development of a warning system for wheat blast caused by Pyricularia grisea [PDF]

Summa Phytopathologica, 2008
Wheat (Triticum aestivum L.) blast caused by Pyricularia grisea is a new disease in Brazil and no resistant cultivars are available. The interactions between temperature and wetness durations have been used in many early warning systems. Hence, growth chamber experiments to assess the effect of different temperatures (10, 15, 20, 25, 30 and 35ºC) and ...
Cardoso, Cinara Araújo de Andrade, Reis, Erlei Melo, Moreira, Eder Novaes   +2 more
openaire   +3 more sources