Rust Resistance
Mostrando 1-12 de 156 artigos, teses e dissertações.
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1. como avaliar reação de variedades de cana-de-açúcar à Puccinia kuehnii?
RESUMO A ferrugem alaranjada (Puccinia kuehnii) tem prejudicado a produtividade da cana-de-açúcar no Brasil. O uso de variedades resistentes é o melhor método de controle da doença. No entanto, o sucesso dessa medida está intimamente ligado à correta avaliação da reação do material e diversidade do patógeno. Escalas de notas da doença e porcenta
Summa phytopathol.. Publicado em: 17/01/2020
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2. Sensory quality of Coffea arabica L. genotypes influenced by postharvest processing
Abstract The specialty coffee market has grown significantly in the past decades and has several cultivars with productive potential. The objective of this study was to evaluate the sensory profile of the beverage produced from Coffea arabica L. genotypes based on postharvest processing and to identify cultivars with the greatest genetic potential for coffee
Crop Breed. Appl. Biotechnol.. Publicado em: 05/12/2019
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3. IAC Catuaí SH3 - a dwarf Arabica coffee cultivar with leaf rust resistance and drought tolerance
Abstract The cultivar IAC Catuaí SH3 was developed by the pedigree method, from the recombination of the coffee tree H 2077-2-5-46, of the Catuaí Vermelho germplasm, with accession IAC 1110-8, from the exotic cultivar BA10. Cultivar IAC Catuaí SH3 is high-yielding, resistant to coffee leaf rust and tolerant to drought.
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
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4. Performance of chlorothalonil levels and spraying intervals on Asian rust control and soybean grain yield
RESUMO Em experimento conduzido no campo, na safra 2017/18, com a cultivar Syn 1561 IPRO, avaliou-se a interação de doses e de intervalos entre aplicação do fungicida clorotalonil no controle da ferrugem asiática da soja, causada por Phakopsora pachyrhizi. A primeira aplicação do fungicida foi realizada no estádio V8, 44 dias após a emergência, com
Summa phytopathol.. Publicado em: 14/10/2019
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5. Genótipos de café conilon e sua reação à ferrugem alaranjada
RESUMO O objetivo deste trabalho foi avaliar o comportamento de 54 clones de cafeeiro conilon oriundos do Programa de Melhoramento Genético do Incaper à ferrugem em condições controladas de temperatura e fotoperíodo. Utilizou-se o delineamento inteiramente casualizado com três repetições, sendo cada repetição composta por 16 discos de folha cada, a
Summa phytopathol.. Publicado em: 14/10/2019
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6. Caracterização de genótipos de soja com resistência parcial à ferrugem da soja
RESUMO A ferrugem asiática da soja (FAS), causada pelo fungo Phakopsora pachyrhizi, é uma das doenças mais severas na cultura. Dentre as estratégias para seu manejo propõe-se a utilização de genótipos com resistência horizontal ou parcial, ainda restritos no mercado, mas promissores pela durabilidade da resistência. O objetivo deste trabalho foi av
Summa phytopathol.. Publicado em: 14/10/2019
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7. CHEMICAL CONTROL OF ASIAN SOYBEAN RUST AS A FUNCTION OF CULTIVAR, ROW SPACING AND SPRAY BAR SUPPORT SYSTEMS
ABSTRACT Product deposition and foliar surface cover are highly impacting factors on the efficiency of foliar fungicides applied to soybean cultivars, due to their low mobility, with side effects on Asian soybean rust (ASR) control. Spray bar support systems, such as the air curtain (Vortex®) and the use of nozzles along the bar (Dropleg®), stand out as an
Eng. Agríc.. Publicado em: 12/08/2019
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8. RB005014 - a sugarcane cultivar with high tillering and agroindustrial yield
Abstract RB005014 was developed for the Brazilian central-south region, for harvesting between July and September and planting on soils that have moderate or higher fertility levels. It has high tillering, high sucrose yield, excellent ratooning ability after mechanical harvesting, resistance to the main diseases and carries the Bru1 gene of brown rust resis
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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9. The combining ability of popcorn S7 lines for Puccinia polysora resistance purposes
ABSTRACT The present study resulted from the lack of information on the genotypic expression ruling the resistance to rust and on the main traits of economic importance to the herein addressed crop. The combining ability of 16 popcorn lines and hybrids was assessed in partial diallel cross in two representative locations in Rio de Janeiro State, Brazil, wher
Bragantia. Publicado em: 18/10/2018
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10. Molecular characterization of Indian pathotypes of Puccinia striiformis f. sp. tritici and multigene phylogenetic analysis to establish inter- and intraspecific relationships
Abstract Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) is one of the most devastating diseases of wheat (Triticum spp.) worldwide. Indian isolates were characterised based on their phenotypic reaction on differential hosts carrying different Yr genes. Based on virulence/avirulence structure, isolates were characterised into ten different pa
Genet. Mol. Biol.. Publicado em: 21/09/2018
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11. An overview of sugarcane brown rust in Cuba
ABSTRACT: Multiple pathogens affect sugarcane, among them Puccinia melanocephala, the causal agent of brown rust. This disease was first reported in Cuba in 1979 when it was responsible for a severe attack on the main sugarcane variety B4362. The aims of the present study were to give an overview of sugarcane brown rust in Cuba and show the current disease s
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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12. Genetic Resistance to Rust of Eucalyptus urophylla Progenies
ABSTRACT This study assessed the genetic variability in open-pollinated progenies of Eucalyptus urophylla for resistance to rust (Puccinia psidii). The progeny trial was conducted on a statistical randomized block design with 20 progenies, five plants per plot, and nine replications. Analysis of variance showed high genetic variability for the studied trait,
Floresta Ambient.. Publicado em: 01/02/2018