Abstract
Abstract During the first stages of a pedigree intraselection for refining a snap bean cultivar, a deviation in earliness and pod and seed uniformity was observed. This research presents the procedure followed to study, evaluate and extract the deviation. It was approached by: (i) studying earliness and yield stability per se of normal and deviant selected families; (ii) comparing normal and deviant selections with commercial cultivars; and (iii) evaluating advanced selected families for uniformity and purity. The normal progenies showed a concentrated flowering period and maturity, while the deviant ones were late and unstable. The deviant selection yielded less than one-fourth of the normal one. Advanced families had a high degree and stability of earliness, high yield, normal seeds and pods, and a high-quality product. The applied procedure resulted in monitoring the cultivar deviation, estimating its undesirable performance and low market value, and removing it, saving for the breeder the valuable ada...
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