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El desarrollo de variedades con alta productividad y adaptadas a condiciones de pequeño productor, se ha realizado en Costa Rica desde 1995 a través de fitomejoramiento participativo y es una de las estrategias más económicas para enfrentar los problemas del cultivo. El objetivo del presente trab...
Colletotrichum lindemuthianum is a highly variable pathogen of common beans that easily overcomes resistance in cultivars bred with single-gene resistance. To determine pathogenic variability of the pathogen in Uganda, samples of common bean tissues with anthracnose symptoms were collected in eig...
The common bean (Phaseolus vulgaris L.) is an important grain legume crop in Malawi where it is grown by small holder farmers for food as well as for sale. Among the many diseases that limit crop productivity is the common bacterial blight caused by Xanthomonas axonopodis pv phaseoli (Xap). Effec...
The genetic improvement of economically important production traits of dry bean (Phaseolus vulgaris L.), for geographic regions where production is threatened by drought and high temperature stress, is challenging because of the complex genetic nature of these traits. Large scale SNP data sets fo...
Since many farmers in the tropics plant crops in association, a study was conducted to determine the capacity of corn and edible beans (Phaseolus vulgaris) grown alone or in association to extract N, P and K. The effects of three soil types and three weed species on the absorptive capacity of the...
The factors influencing the size and shape of exptl. field plots (area of exptl. lot, soil types, trial objective, no. of replicates, and degree of accuracy and homogeneity of the exptl. material) for the execution of field expt. are discussed. The basic principles of the following different meth...
Se discuten los factores (area de lote exptl., tipo de suelo, objetivo del ensayo, no. de repeticiones y grado de precision y homogeneidad del material exptl.) que influyen en el tamano y la forma de la parcela en la conduccion de expt. de campo. Se describen brevemente los principios basicos de ...
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