Efecto de la rotación de cultivos en la incidencia del amachamiento (aphelenchoides besseyi christie) en frijol

Effect of crop rotation in the incidenceof “amachamiento” (Aphelenchoides besseyi Christie) in common bean. The effect of crop rotation on the incidence of common bean “amachamiento” was evaluated in the “Brunca” region in Costa Rica during 2009 complemented by a field observation during 2010. The i...

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Autores Principales: Chaves Barrantes, Néstor Felipe, Araya Fernández, Carlos Manuel
Formato: Artículo
Idioma: Español
Publicado: 2015
Materias:
Acceso en línea: http://revistas.ucr.ac.cr/index.php/agrocost/article/view/9821
http://hdl.handle.net/10669/13951
Sumario: Effect of crop rotation in the incidenceof “amachamiento” (Aphelenchoides besseyi Christie) in common bean. The effect of crop rotation on the incidence of common bean “amachamiento” was evaluated in the “Brunca” region in Costa Rica during 2009 complemented by a field observation during 2010. The incidence of “amachamiento” in 2009 was quantified in vegetative (V3 or V4), flowering (R6) and pod-production (R8) plant growth stages, in bean commercial fields rotating with previous rice, corn, hot-pepper, pumpkin or bean. Four micro-plots (10 m2) were established in each field; to score “amachamiento” incidence, data were subjected to angular transformation and statistical means among treatments were separated by ANOVA. The 2010 field observation was developed in a farm growing common beans on soils previously planted with either ginger, taro or corn. In 2009, during the R8 growth stage a minimum incidence was detected in the hot-pepper-bean rotation (4%), intermediate levels inthe pumpkin-bean (15%) and rice-bean rotation(29%), and high incidence in both bean-bean(62%) and corn-bean (64%) rotations. In the 2010 field observations, during the floweringstage “amachamiento” incidence was 4% in the ginger-bean rotation and 5% in the taro-bean one, significantly lower than in the corn-bean rotation (25%). Based on these results, crop rotations suchas hot-pepper, ginger, taro or pumpkin precedingcommon bean can reduce both “amachamiento” incidence and, consequently, yield losses.