Evaluation of agro-morphological behavior based on the variability characterization of common bean (Phaseolus vulgaris L.) lines for late sowings

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Alexis Lamz Piedra

Abstract

Among the main factors affecting bean
production is the wrong varietal distribution over diverse
environmental conditions under which it is grown. The
research work was aimed at evaluating the agro-morphological
behavior based on the variability characterization of promising
common bean lines for late sowings. Thus, seeding was
performed on January 20, 2014, using a randomized block
design and four repetitions in “El Mulato” farm, belonging
to "Orlando Cuellar" Strengthened Credit and Service
Cooperative (SCSC), San José de las Lajas municipality,
Mayabeque province. The evaluation was carried out on 14
agro-morphological variables that included phenological and
morphological parameters, yield and its components, as well
as rust (Uromyces appendiculatus) resistance. Results from
analyzing statistical parameters and main components allowed
detecting genetic variability among the evaluated lines. It was
also detected that pod number per plant and 100-grain weight
were the highest correlated variables with yield. In general, six
out of the evaluated lines combined a high-yielding potential
and from mid to high rust resistant reaction, standing out SCR
15 line, with a greater yield potential than those so far reported
in Cuba. This suggests assessing these lines in regional trials
for a further generalization-extension of the possible cultivars
that contribute to focus an appropriate management of these
genotypes and their use as rust resistant sources in bean
breeding programs.

Article Details

How to Cite
Lamz Piedra, A. (2016). Evaluation of agro-morphological behavior based on the variability characterization of common bean (Phaseolus vulgaris L.) lines for late sowings. Cultivos Tropicales, 37(2), 108–114. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/1238
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Original Article