Crescimento vegetativo e acúmulo de nutrientes em diferentes genótipos do cafeeiro conilon
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Data
2012-05-21
Autores
Marré, Welington Braida
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Universidade Federal do Espírito Santo
Resumo
The nutrients phenological aspects knowledge is primordial for a better quality and
productivity of the coffee. So, the goal of this project was to determinate the
seasonable growth and nutrients accumulation by Conilon coffee (Coffea canephora
Pierre), along with different periods of maturation and with the orthotropic and
plagiotropic branch growth in distinct ages, as well as relate them to climate factors.
The experiment was lead between 08/14/2010 and 10/08/2011 in a agriculture rural
field, situated on Nova Venécia, Espírito Santo. The principal set lead used in the
experiment was completely random, repeated five times. Plants of three years old
were utilized, cultivated under full sunshine conditions, with therr meters between
lines and one meter between each plant. The growth rate of orthotropic and
plagiotropic branches of C canephora are different between distinct kinds of
genotypes and they suffer of a seasonable climate variation during the whole year,
influenced especially by air temperature variation. Plagiontropic branches along
some months and especially with the fruit (coffee) presented lower vegetative growth,
compared to newer branches. Distinct genotypes maturation cycle also presented
singularities in each absorbed nutrient, varying according to a certain period of time,
suggesting, maybe, that each genotype demand a variable quantity of nutrient at the
same period. Longer fruit maturation cycles genotypes demand more nutrients and
better redistribute them along the cycle. It is suggested that most of Conilon coffee
genotypes demand more growth nutrients between mid-September to the second
week of May. It is also suggested that fertilizations must be performed in different
periods during the year for each kind of maturation cycle, according to nutrient
demand for generating the fruit.
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Palavras-chave
Genotypes , Coffea canephora Pierre , Temperature , Genótipos , Nutrients , Nutrientes
Citação
MARRÉ, Welington Braida. Crescimento vegetativo e acúmulo de nutrientes em diferentes genótipos do cafeeiro conilon. 2012. 58 f. Dissertação (Mestrado em Agricultura Tropical) - Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal do Espírito Santo, São Mateus, 2012.