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Journal Article 2010

In planta gene expression analysis of Xanthomonas oryzae pathovar oryzae, African strain MAI1

Autor: Soto Suárez, M. Bernal, D. González, C. Szurek, B Guyot, R Tohme, Joseph M. Verdier, Valérie

Background: Bacterial leaf blight causes significant yield losses in rice crops throughout Asia and Africa. Although both the Asian and African strains of the pathogen, Xanthomonas oryzae pv. oryzae (Xoo), induce similar symptoms, they are nevertheless genetically different, with the African stra...

Enlace original: https://cgspace.cgiar.org/handle/10568/43105

Investigación en Agricultura

XANTHOMONAS ORYZAE

PATHOGENICITY

ORYZA SATIVA

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Soto Suárez, M. , Bernal, D. , González, C. , Szurek, B , Guyot, R , Tohme, Joseph M. , Verdier, Valérie , [In planta gene expression analysis of Xanthomonas oryzae pathovar oryzae, African strain MAI1] , In planta gene expression analysis of Xanthomonas oryzae pathovar oryzae, African strain MAI1

Journal Article 2007

Association of Burkholderia glumae and B. gladioli with panicle blight symptoms on rice in Panama

Autor: Nandakumar, R Rush, MC Correa Victoria, Fernando J.

Panicle blight of rice, caused by Burkholderia glumae, has been a serious problem on rice in Japan since 1955. It has been reported from other rice-producing countries around the world and recently was reported on rice in the southern United States (2). A rice producer in Panama contacted us to v...

Enlace original: https://cgspace.cgiar.org/handle/10568/43205

Investigación en Agricultura

RICE

ORYZA SATIVA

INFLORESCENSES

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Nandakumar, R , Rush, MC , Correa Victoria, Fernando J. , [Association of Burkholderia glumae and B. gladioli with panicle blight symptoms on rice in Panama] , Association of Burkholderia glumae and B. gladioli with panicle blight symptoms on rice in Panama

Journal Article 1987

Bacterial sheath brown rot of rice caused by Pseudomonas fuscovaginae in Latin America

Autor: Zeigler, Robert S. Álvarez, E.

Many types of symptoms associated with discolored grain have been observed on rice (Oryza sativa) sheaths, leaves, and grain in Mexico, Guatemala, Panama, Surinam, Colombia, Peru, and Brazil. These include brown necrotic lesions ranging from small specks to large brown to maroon sheath blotches. ...

Enlace original: https://cgspace.cgiar.org/handle/10568/43208

Investigación en Agricultura

ORYZA SATIVA

RICE

PSEUDOMONAS FUSCOVAGINAE

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Zeigler, Robert S. , Álvarez, E. , [Bacterial sheath brown rot of rice caused by Pseudomonas fuscovaginae in Latin America] , Bacterial sheath brown rot of rice caused by Pseudomonas fuscovaginae in Latin America

Journal Article 2008

Assessment of genetic diversity in Venezuelan rice cultivars using simple sequence repeats markers

Autor: Ghneim-Herrera, Thaura Posso Duque, D Pérez Almeida, I. Torrealba N., G.T. Pieters, AJ Martínez Racines, César Pompilio Tohme, Joseph M.

In Venezuela, pedigree analyses indicate that the rice varieties currently under cultivation are closely related. Effective breeding programs, based on knowledge of the genetic diversity of cultivars, are needed to broaden the genetic bases of rice germplasm in the country. In this study, we used...

Enlace original: https://cgspace.cgiar.org/handle/10568/43201

Investigación en Agricultura

ORYZA SATIVA

RICE

VARIETIES

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Ghneim-Herrera, Thaura , Posso Duque, D , Pérez Almeida, I. , Torrealba N., G.T. , Pieters, AJ , Martínez Racines, César Pompilio , Tohme, Joseph M. , [Assessment of genetic diversity in Venezuelan rice cultivars using simple sequence repeats markers] , Assessment of genetic diversity in Venezuelan rice cultivars using simple sequence repeats markers

Journal Article 2014

Seven years of conservation agriculture in a rice–wheat rotation of Eastern Gangetic Plains of South Asia: Yield trends and economic profitability

Autor: Jat, Kumar Raj Sapkota, Tek Bahadur Singh RG Jat, Mangi Lal Kumar, M. Gupta RK

Water, energy and labour scarcity, increasing cost of production, diminishing farm profits and uncertain weather events are major challenges faced by the farmers under intensive tillage based conventional rice–wheat (RW) production system of Indo-Gangetic Plains (IGP) in South Asia. To address th...

Enlace original: https://cgspace.cgiar.org/handle/10568/68185

Investigación en Agricultura

CLIMATE CHANGE

AGRICULTURE

FOOD SECURITY

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Jat, Kumar Raj , Sapkota, Tek Bahadur , Singh RG , Jat, Mangi Lal , Kumar, M. , Gupta RK , [Seven years of conservation agriculture in a rice–wheat rotation of Eastern Gangetic Plains of South Asia: Yield trends and economic profitability] , Seven years of conservation agriculture in a rice–wheat rotation of Eastern Gangetic Plains of South Asia: Yield trends and economic profitability

Journal Article 1996

Comparison of rice lines derived through anther culture and the pedigree method in relation to blast (Pyricularia grisea Sacc.) resistance

Autor: Martínez Racines, César Pompilio Correa Victoria, Fernando J. Amézquita, María Cristina Tulande Valencia, Edgar Lema, G Zeigler, Robert S.

Crosses were made between Fanny (highly susceptible to blast) and 11 cultivars differing in blast resistance. Using the pedigree method (PM) segregating generations were evaluated and selected for blast resistance. Via anther culture (AC), doubled-haploids were obtained from F1 plants and from F2...

Enlace original: https://cgspace.cgiar.org/handle/10568/43288

Investigación en Agricultura

ORYZA SATIVA

RICE

EVALUATION

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Martínez Racines, César Pompilio , Correa Victoria, Fernando J. , Amézquita, María Cristina , Tulande Valencia, Edgar , Lema, G , Zeigler, Robert S. , [Comparison of rice lines derived through anther culture and the pedigree method in relation to blast (Pyricularia grisea Sacc.) resistance] , Comparison of rice lines derived through anther culture and the pedigree method in relation to blast (Pyricularia grisea Sacc.) resistance

Journal Article 1982

Epidemiological implications of the spectrum of resistance to rice blast

Autor: Sang Won Ahn Ou, SH

The infection efficiency and the infection rate of the spore population of Pyricularia oryzae was lower if the percentage of races to which each cultivar was resistant was high. It appears that cultivars with resistance to a high percentage of the races of the pathogen behaved as expected for “ho...

Enlace original: https://cgspace.cgiar.org/handle/10568/43412

Investigación en Agricultura

ORYZA SATIVA

RICE

PYRICULARIA ORYZAE

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Sang Won Ahn , Ou, SH , [Epidemiological implications of the spectrum of resistance to rice blast] , Epidemiological implications of the spectrum of resistance to rice blast

Journal Article 2004

Effects of silicon and fungicides on the control of leaf and neck blast in upland rice

Autor: Seebold, KW Datnoff, LE Correa Victoria, Fernando J. Kucharek, TA Snyder, GH

Silicon (Si) has been shown to suppress diseases of rice such as blast when applied to Si-deficient soils. In 1995 and 1996, Si was applied at 1,000 kg ha-1 to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck bl...

Enlace original: https://cgspace.cgiar.org/handle/10568/43400

Investigación en Agricultura

ORYZA SATIVA

RICE

MAGNAPORTHE GRISEA

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Seebold, KW , Datnoff, LE , Correa Victoria, Fernando J. , Kucharek, TA , Snyder, GH , [Effects of silicon and fungicides on the control of leaf and neck blast in upland rice] , Effects of silicon and fungicides on the control of leaf and neck blast in upland rice

Journal Article 1990

Genetic determination of replication of rice hoja blanca virus within its planthopper vector, Sogatodes oryzicola

Autor: Zeigler, Robert S. Morales, Francisco José

The inheritance of the ability of Sogatodes oryzicola to support replication of the rice hoja blanca virus (RHBV) was studied by following the segregation of progeny of crosses between insects of known pedigree and known ability to support virus replication and transmission. Virus transmission to...

Enlace original: https://cgspace.cgiar.org/handle/10568/43483

Investigación en Agricultura

RICE

VIROSES

VECTORS

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Zeigler, Robert S. , Morales, Francisco José , [Genetic determination of replication of rice hoja blanca virus within its planthopper vector, Sogatodes oryzicola] , Genetic determination of replication of rice hoja blanca virus within its planthopper vector, Sogatodes oryzicola

Journal Article 2010

Establishment of drought screening protocols for rice under field conditions = Protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico en campo

Autor: Sakai, T Duque E., Myriam Cristina Vallejo Cabrera, Franco Alirio Pompilio Martinez, C Ishitani, Manabu

Protocols were established for screening rice genotypes for tolerance to water-limited conditions under field conditions. These protocols were successfully used to select the best genotypes for further experiments. Rice genotypes responded differently when subjected to water-limited conditions. E...

Enlace original: https://cgspace.cgiar.org/handle/10568/43418

Investigación en Agricultura

ORYZA SATIVA

RICE

DROUGHT

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Sakai, T , Duque E., Myriam Cristina , Vallejo Cabrera, Franco Alirio , Pompilio Martinez, C , Ishitani, Manabu , [Establishment of drought screening protocols for rice under field conditions = Protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico en campo] , Establishment of drought screening protocols for rice under field conditions = Protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico en campo

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