Results 41 to 50 of about 1,707 (171)

Genome‐Wide Association Study of a Worldwide Collection of Wheat Genotypes Reveals Novel Quantitative Trait Loci for Leaf Rust Resistance

The Plant Genome, 2019
Core Ideas The emergence of new virulent Puccinia triticina races requires a continuous search for novel sources of resistance to combat leaf rust (LR) disease Twenty‐two wheat genotypes resistant to four P.
Suraj Sapkota, Yuanfeng Hao, Jerry Johnson, James Buck, Meriem Aoun, Mohamed Mergoum   +5 more
doaj   +1 more source

Genetic Variation and Virulence on Lr26 in Puccinia triticina [PDF]

Phytopathology®, 2004
The genetic relationships between isolates of Puccinia triticina virulent on wheat with the Lr26 resistance gene were studied. The diversity within and between isolates of P. triticina from Israel, Europe, and the United States was determined by virulence on near-isogenic Thatcher lines and by random amplified polymorphic DNA.
E, Kosman, E, Pardes, Y, Anikster, J, Manisterski, P Ben, Yehuda, L J, Szabo, A, Sharon   +6 more
openaire   +2 more sources

Patterns of physiologic diversity of Puccinia triticina on wheat in Indian subcontinent during 2008-2013

The Indian Journal of Agricultural Sciences, 2016
Brown (leaf) rust of wheat, caused by Puccinia triticina was widely distributed in all the wheat growing areas. To identify new pathotypes and determine the virulence pattern of Puccinia triticina, rust samples were analyzed from the wheat growing areas
S C BHARDWAJ, M PRASHAR, SUBODH KUMAR, O P GANGWAR, NEHA GUPTA, PRAMOD PRASAD, HANIF KHAN   +6 more
doaj   +1 more source

Evaluation of Equisetum arvense (Horsetail Macerate) as a Copper Substitute for Pathogen Management in Field-Grown Organic Tomato and Durum Wheat Cultivations

Agriculture, 2020
Effective pathogen management, as an aspect of agroecological crop protection (ACP) necessitates the replacement of copper (Cu) fungicides, but there is little knowledge relating to the performance of potentially suitable alternatives in large-scale ...
Grazia Trebbi, Lorenzo Negri, Sara Bosi, Giovanni Dinelli, Riccardo Cozzo, Ilaria Marotti   +5 more
doaj   +1 more source

Validação de marcadores moleculares associados a genes de resistência à ferrugem-da-folha do trigo Validation of molecular markers associated to leaf rust resistance genes in wheat

Pesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi validar marcadores moleculares previamente associados a genes que conferem resistência à ferrugem-da-folha, em genótipos brasileiros de trigo.
Paulo Roberto Da Silva, Sandra Cristina Kothe Milach, Vinicius de Albuquerque Sortica, Tatiana Boff, Sandra Patussi Brammer, Luiz Carlos Federizzi   +5 more
doaj   +1 more source

Virulence Phenotypes of Puccinia triticina in the South Atlantic States in 1999 [PDF]

Plant Disease, 2002
Collections of Puccinia triticina were made from rust-infected wheat leaves in Georgia, South Carolina, North Carolina, and Virginia in 1999 to examine if these states can be considered as a single epidemiological unit for virulence phenotypes of the wheat leaf rust pathogen.
J A, Kolmer, D L, Long, M E, Hughes
openaire   +5 more sources

Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat

Spanish Journal of Agricultural Research, 2016
Leaf rust is a foliar disease caused by the fungus Puccinia triticina that may severely reduce durum wheat yield. Resistance to this pathogen is common in modern durum germplasm but is frequently based on Lr72 and Lr14a.
Nour H. Soleiman, Ignacio Solis, Mahmoud H. Soliman, Josefa C. Sillero, Dolors Villegas, Fanny Alvaro, Conxita Royo, Joan Serra, Karim Ammar, Fernando Martínez-Moreno   +9 more
doaj   +1 more source

The Automation of Hyperspectral Training Library Construction: A Case Study for Wheat and Potato Crops

Remote Sensing, 2021
The potential of hyperspectral measurements for early disease detection has been investigated by many experts over the last 5 years. One of the difficulties is obtaining enough data for training and building a hyperspectral training library.
Simon Appeltans, Orly Enrique Apolo-Apolo, Jaime Nolasco Rodríguez-Vázquez, Manuel Pérez-Ruiz, Jan Pieters, Abdul M. Mouazen   +5 more
doaj   +1 more source

Genetic analysis of adult-plant resistance to leaf rust in a double haploid wheat (Triticum aestivum L. em Thell) population

Genetics and Molecular Biology, 2004
A genetic analysis of adult plant resistance to leaf rust (Puccinia triticina) was performed in in vitro obtained double haploid progenies from a cross between the Brazilian wheat cultivar Trigo BR 35, which, under the high inoculum pressure of the ...
Sandra Patussi Brammer, Maria Irene Baggio de Moraes Fernandes, Amarilis Labes Barcellos, Sandra Cristina Kothe Milach   +3 more
doaj   +1 more source

Long‐term surveillance reveals hybridization by nuclear reassortment and intercontinental spread as major evolutionary drivers in wheat yellow rust

New Phytologist, EarlyView.
Documented incursions of Puccinia striiformis 2009–2023 based on sequential resampling of MLGs/pathogen races on different continents. Summary Evolutionary forces affecting crop pathogens, including hybridization and long‐distance dispersal (LDD), may have strong implications for food security and sustainable plant disease control at global scales ...
Mogens Støvring Hovmøller, Tine Thach, Julian Rodriguez‐Algaba, Jens Grønbech Hansen, Marcel Meyer, David P. Hodson, Kumarse Nazari, Robert F. Park, Rita Tam, Mareike Möller, Benjamin Schwessinger, John P. Rathjen, Paula Silva, Venancio Riella, Annemarie Fejer Justesen   +14 more
wiley   +1 more source