Diseases
Oryza sativa L.
A fungal disease of rice caused by Pyricularia oryzae, affecting all above-ground plant organs. It is characterized by high pathogen variability and the presence of specific Pi- resistance genes in the crop genotype.
In the reference 159 varieties crop Rice, where this is mentioned in the description.
The disease is caused by the imperfect fungus Pyricularia oryzae Cavara. The pathogen population includes over 30 physiological races with a high capacity for variability, which leads to the rapid overcoming of varietal resistance. The disease manifests in leaf, nodal, and panicle forms, causing leaf necrosis, stem breakage, and panicle sterility.
In rice breeding, resistance to the pathogen is controlled by specific genes with the Pi- prefix (e.g., Pi-ta2, Pi-9, Pi-2, Pi-b, Pi-1, Pi-33, Pi-40, Pi-z(t)). The modern protection strategy is based on pyramiding several such genes into a single genotype, which allows for increased stability of resistance against local fungal populations.
General information about the subject — on the page Rice blast.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Oryza sativa L. · Rice
CREA-Centro di Ricerca per la Cerealicoltura( CREA-CI-VC)
Oryza sativa L. · Rice
Trakiy Agricultural Research Institute (TR)
Oryza sativa L. · Rice
IVIA
Oryza sativa L. · Rice
Texas Agricultural Experiment Station/ USDA-ARS
Oryza sativa L. · Rice
Semillas Certificadas Castells S.L.
Oryza sativa L. · Rice
CIRAD-BIOS (FR)/Centre Francais du Riz (FR)
Oryza sativa L. · Rice
Cooperativa de Productores de Semillas de Arroz S.C.L.
Oryza sativa L. · Rice
YANMAR R & D EUROPE S.R.L.
Oryza sativa L. · Rice
S.I.S. SOCIETA' ITALIANA SEMENTI
Oryza sativa L. · Rice
GENTINETTA EUGENIO
Oryza sativa L. · Rice
Sultan Sahin, Recep Kaya, Necmi Beser, Halil Surek,
Oryza sativa L. · Rice
BARONE ANDREA E PERUCCA EGIDIO
Oryza sativa L. · Rice
LUGANO LEONARDO SRL
Oryza sativa L. · Rice
LUGANO LEONARDO SRL
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Oryza sativa L. · Rice
RICE TEC INC.
Oryza sativa L. · Rice
Sardo Piemontese Sementi Soc. Coop. Società Agricola
Oryza sativa L. · Rice
Instituto Nacional de Investigação Agrária e Veterinária I.P. (INIAV) - Polo de Elvas
Oryza sativa L. · Rice
S.I.S. SOCIETA' ITALIANA SEMENTI
Oryza sativa L. · Rice
Centre Francais du Riz (FR)/CIRAD (FR)
Oryza sativa L. · Rice
BERTONE SEMENTI SPA
Oryza sativa L. · Rice
Centre Francais du Riz (FR)/CIRAD (FR)
Oryza sativa L. · Rice
BASF S.A
Oryza sativa L. · Rice
RICE TEC INC.