Poda verde na produção e qualidade de uva cv. rubi (vitis vinifera L.) no Norte do Espírito Santo
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Data
2013-04-05
Autores
Zanotti, Luiz Carlos Marozzi
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Editor
Universidade Federal do Espírito Santo
Resumo
The production of grapes is gaining more and more, featured in the brazilian
economy. The brazilian northeast is responsible for the best table grapes production
of Brazil, including the quality that enables export to many countries of the world.
Therefore, it‟s not a novelty the grape growing in warm regions, what did not exist yet
were grape research in the north capixaba (Region of Espírito Santo). The vine Vites
Vinifera cv. Rubi is the one varieties of table grape most important in Brazil. For your
cultive, we have the system of green pruning (lopping) which is held in vines with the
objective of balancing the vegetative development and production, aiming the high
productivity and improving the grapes' quality. Due to lack of scientific parameters
relative to the cultive of Rubi grape in the state of Espírito Santo, the experiment had
as an objective to evaluate the ideal number of leaves which should be left on the
branches to get a better productivity and fruit quality for the conditions found in the
region. The experiment was conducted in the farm San Lázaro neighborhood
Córrego do Ribeirão, São Mateus - ES, from February 2011 to August 2012 with the
vine cv. Rubi. The design was in a randomized block design (RBD) with 5 treatments
and 4 repetitions, and means were compared by a Tukey test with 5% probability.
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The treatments 1, 2, 3, 4, 5 were composed respectively with 15, 20, 25, 30 followed
leaves and the last 22 with alternate leaves, whereas the branches were cutting from
the final leaves counted for each treatment. Were evaluated 5 grape clusters by
repetition, whereas was established a total of 50 berries per cluster to standardize
them. The variables evaluated in the treatments were physical and chemical
characteristics of clusters and of grape, physiological characteristics of the leaf and
the growth average of the branches. After harvested, the grapes and the leaves were
taken to the laboratory of Plant Science Center University of Espírito Santo -
CEUNES (Centro Universitário Norte do Espírito Santo) to perform the analyses.
After the results of the analyses, we found that the number of leaves left by pruning
(lopping) did not affect the mass average of the clusters, however, influenced the
average number of bunches produced per plant and the length of the bunches, i.e.,
influencing directly on productivity; The berry diameter, the number of seeds per
berry and the percentage were not affected by treatments (number of leaves); The
chemical characteristics of the berries were not affected by treatments; The treatment
with 15 leaves provided an increase in leaf area and also in chlorophyll A, chlorophyll
B and Total chlorophyll; The growth of branches was not affected by treatments, but
the branches presenting clusters showed a higher growth and consequently the
formation of new leaves. Therewith, we conclude that the lopping do not influence on
fruit quality, but in the productivity of vine cv. "Rubi" (Vitis vinifera), where we found
that treatment 03 (25 leaves) obtained the highest productivity compared with others.
Descrição
Palavras-chave
Productivity , Sólidos solúveis totais , Topping , Produtividade , Pruning , Desponte , Soluble solids , Poda verde
Citação
ZANOTTI, Luiz Carlos Marozzi. Poda verde na produção e qualidade de uva cv. rubi (vitis vinifera L.) no Norte do Espírito Santo. 2013. 43 f. Dissertação (Mestrado em Agricultura Tropical) - Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal do Espírito Santo, São Mateus, 2013.