Caracterização da performance de cultivares de feijão-comum em três épocas de semeadura em Goiás, por modelo de simulação
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2020-02-14
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Universidade Federal de Goiás
Resumo
Common bean (Phaseolus vulgaris L.) is one of the most produced and
consumed legume species in the world, which is of great importance in the social and
economic sphere. Due to its great adaptive capacity, common bean can be produced in
different seasons, cultivation systems and edaphoclimatic conditions, which favors the
greater exploitation of the crop throughout the national territory, resulting in a wide
variability of bean types, groups and cultivars. Due to its genetic characteristics, each
cultivar responds differently to environmental variables, different soil and management, and
these characteristics can be studied through computational models that simulate the growth,
development and yield of the cultures. The aim of this work was to characterize the
performance of four commercial cultivars of common bean “in silico”, in addition to
parameterize and validate the CROPGRO-Drybean model, comparing the phenotypic
characteristics of the cultivars and evaluating their performance in the three planting seasons
and different sowing dates in the bean production areas of Goiás State. The CROPGRODrybean model was parameterized and validated for the cultivars Pérola, BRS Estilo, BRS
Esplendor and IPR Uirapuru by genetic algorithm using field experiments from the dry bean
breeding program. Subsequently, the yields of common bean cultivars were simulated in the
producing regions of Goiás State, during the wet, dry and winter seasons, in several sowing
dates and a cluster analysis was performed to define homogeneous environmental groups.
The environmental variability regarding the locations and dates used in the validation were
captured by the CROPGRO-Drybean model and the parameterized coefficients of the four
cultivars are more suitable for simulations in the winter season. Earlier sowing dates
provided higher yields during wet and dry seasons. The factors that most affected the clusters
in the wet and dry seasons were cultivar and sowing date, while in winter they were
municipality and cultivar.
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JUSTINO, L. F. Caracterização da performance de cultivares de feijão-comum em três épocas de semeadura em Goiás, por modelo de simulação. 2020. 77 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2020.