%0 Journal Article
%T Efecto de la rotaci¨®n de cultivos en la incidencia del Amachamiento (Aphelenchoides besseyi Christie ) en frijol
%A Chaves
%A N¨¦stor Felipe
%A Araya
%A Carlos Manuel
%J Agronom¨ªa Costarricense
%D 2012
%I Universidad de Costa Rica
%X 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 hotpepper- bean rotation (4%), intermediate levels in the 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 flowering stage ¡°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 such as hot-pepper, ginger, taro or pumpkin preceding common bean can reduce both ¡°amachamiento¡± incidence and, consequently, yield losses.
%K amachamiento
%K crop rotation
%K aphelenchoides besseyi christie
%K phaseolus vulgaris l
%K disease management
%K foliar nematode.
%U http://www.scielo.sa.cr/scielo.php?script=sci_abstract&pid=S0377-94242012000200004&lng=en&nrm=iso&tlng=en