INVESTIGADORES
GUTIERREZ Agustina
artículos
Título:
Disease Tolerance in Helianthus petiolaris: A Genetic Resource for Sunflower Breeding
Autor/es:
GUTIERREZ AGUSTINA; CANTAMUTTO MIGUEL; POVERENE MÓNICA
Revista:
PLANT PRODUCTION SCIENCE
Editorial:
CROP SCIENCE SOC JAPAN
Referencias:
Año: 2012 vol. 15 p. 204 - 208
ISSN:
1343-943X
Resumen:
Argentina is a major sunfl ower producer in the world, with crop acreage of 2−2.7 million hectares in the last four years. Sunflower crop yield is often influenced by sanitary constraints, mainly fungal pathogens. Helianthus petiolaris is a wild species native to North America tablished in central Argentina displays a high tolerance to a number of fungal diseases and insects.Controlled crosses of this species with sunflower demonstrated that H. petiolaris constitutes a valuable genetic variability source for sunfl ower breeding to improve tolerance to rust (Puccinia helianthi), white rust (Albugo tragopogonis), verticillium wilt (Verticillium dahliae), powdery mildew (Erisiphe sp.) and the sunfl ower moth (Rachiplusia nu). This places H. petiolaris in an outstanding position as a genetic resource since different important traits could be transferred to the crop through interspecifi c hybridization.
