Artículo
Assessment of inoculation techniques for screening sugarcane resistance to red stripe disease caused by Acidovorax avenae subsp. avenae
Bertani, Romina Priscila
; Joya, Constanza María
; Henriquez, Diego Daniel; Funes, Claudia; González, Victoria; Perera, María Francisca
; Cuenya, María Inés
; Castagnaro, Atilio Pedro
Fecha de publicación:
02/2020
Editorial:
Southern Cross Publishing
Revista:
Australian Journal of Crop Science
ISSN:
1835-2693
e-ISSN:
1835-2707
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The red stripe disease caused by Acidovorax avenae subsp. avenae in sugarcane, has become a quite relevant issue in Argentina because of its high incidence in the sugarcane growing area. The resistance of host plants is the most promising method for controlling the disease. In that sense, the Estación Experimental Agroindustrial Obispo Colombres (EEAOC) has a Sugarcane Breeding Program, which generates new varieties with higher productivity and good sanitary behavior. The lack of an effective screening technique to select resistant sugarcane genotypes limits the cultivar selection process. To develop a practical and affordable method for achieving the expression of the red stripe disease, three available inoculation techniques were evaluated under controlled conditions over two sugarcane varieties, with a previously adjustment of soil composition and nutrition and relative humidity. They consisted in (i) scrubbing the leaf surface with a cotton ball soaked in the suspension of A. avenae subsp. avenae; and spraying inoculum under two conditions: (ii) leaves pre-treated with a refined sand scarification and (iii) leaves with no scarification. Fifteen plants were inoculated per cultivar and treatment according to a randomized protocol with three replicates and the severity of the disease was evaluated on a scale of 1- 9 according to the International Society of Sugarcane Technologists. The spray inoculation using a bacterial suspension of A. avenae subsp. avenae without abrasives was also field tested. These results contribute to sugarcane breeding programs, providing a tool to assess the resistance to red stripe of their materials, overcoming the lack of bacterial pressure or favorable conditions for the disease.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - NOA SUR)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos(ITA-NOA)
Articulos de INST. DE TECNOLOG. AGROINDUST. DEL NOROESTE ARGENTINO
Articulos de INST. DE TECNOLOG. AGROINDUST. DEL NOROESTE ARGENTINO
Citación
Bertani, Romina Priscila; Joya, Constanza María; Henriquez, Diego Daniel; Funes, Claudia; González, Victoria; et al.; Assessment of inoculation techniques for screening sugarcane resistance to red stripe disease caused by Acidovorax avenae subsp. avenae; Southern Cross Publishing; Australian Journal of Crop Science; 14; 11; 2-2020; 1764-1771
Compartir
Altmétricas