Crescimento vegetativo e acúmulo de nutrientes em frutos de cafeeiro conilon irrigado e não irrigado, na região atlântica da Bahia, Brasil
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Data
2016-02-25
Autores
Covre, André Monzoli
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Universidade Federal do Espírito Santo
Resumo
Understanding the seasonal variations of the vegetative growth and the dynamics of
formation of Conilon coffee fruits in non-irrigated crops and especially in irrigated
conditions, relating them to the climatic conditions, it is an important tool, with direct
implications for the management of the crop. The objective was to evaluate the
vegetative growth of orthotropic and reproductive branches, the dry matter
accumulation in fruits, leaves and branches of production, the concentration of
nutrients in fruits and leaves, and the accumulation of nutrients in fruits of irrigated
and non-irrigated coffee Conilon plants. The experiment was conducted for two years
in the municipality of Itabela, Atlantic region of State Bahia, Brazil. Three-year-old
Conilon coffee plants of the genotype 02 were used. A completely randomised splitplot experimental design was employed, with 14 replicates. The treatments consisted
of irrigation and no irrigation of coffee plants in the plots, and subplots of different
evaluation times (measurement of branches and fruit collecting and leaves). The
growth rate of orthotropic and reproductive branches pending charge is higher in
irrigated plants compared to non-irrigated. The maximum growth rates occur in the
spring and minimum during graining and, or, during periods of drought, high
temperature and low relative humidity. The growth rate of C. canephora branches is
not limited by the average minimum air temperature. The dry matter accumulation
curves and nutrients in irrigated Conilon coffee fruits and without irrigation were
similar, adjusting to the sigmoidal model. The accumulation of dry matter in the fruit is
higher in irrigated plants compared to non-irrigated. Nitrogen, potassium, calcium,
iron and boron were the most nutrients found in fruits and Conilon coffee leaves in
Bahia Atlantic region.
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Water deficit , Café conilon , High temperatures , Coffea canephora , Plagiotropic branches , Déficit hídrico , Sigmoidal model , Ramos plagiotrópicos , Fertigation , Modelo sigmoidal
Citação
COVRE, André Monzoli. Crescimento vegetativo e acúmulo de nutrientes em frutos de cafeeiro conilon irrigado e não irrigado, na região atlântica da Bahia, Brasil. 2016. 146 f. Dissertação (Mestrado em Agricultura Tropical) - Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal do Espírito Santo, São Mateus, 2016.