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      Caracterização de frutos de clones de cacaueiros na região litorânea de São Mateus, ES Translated title: Fruit characterization of cocoa clones in the coastal region of São Mateus city, ES

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          Abstract

          <title>RESUMO</title><p>Objetivou-se, com trabalho, avaliar a pós-colheita de clones de cacaueiros produzidos na região litorânea do norte do Espírito Santo, quanto às características físicas e químicas de seus frutos. As caracterizações físicas e químicas foram realizadas a partir de 10 frutos referentes a sete clones de cacau (CCN 10, CCN 51, CEPEC 2002, PH 15, PH 16, OS 1319 e TSH 1188). Foram avaliados o peso total, diâmetro e comprimento do fruto, peso da casca, espessura do sulco e da região mais espessa da casca, número, peso seco, largura, espessura e comprimento das amêndoas, sólidos solúveis totais (SST), acidez total titulável (ATT), pH da polpa e relação SST/ATT. As médias obtidas foram agrupadas pelo teste de Scott-Knott a 0,05 de probabilidade; em seguida, procedeu-se à análise da divergência genética. Foi observada a presença de divergência genética entre as populações estudadas ocorrendo a formação de três grupos pelo método de Tocher e dois grupos quando aplicado o Unweighted Pair-Group Method Average (UPGMA). Os clones CCN 10 e CCN 51 são os mais indicados para a produção de amêndoas e as variáveis, referentes ao tamanho do fruto, comprimento e diâmetro, foram as que mais contribuíram na diversidade genética dos genótipos.</p>

          Translated abstract

          <title>ABSTRACT</title><p>The objective of this study was to evaluate the behavior of cocoa clones produced in the northern coastal region of the Espírito Santo, for the physical and chemical characteristics of fruit. The physico-chemical characterizations were carried out on 10 fruits of seven cacao clones (CCN 10, CCN 51, CEPEC 2002, PH 15, PH 16, PS 1319 and TSH 1188). The variables evaluated were: the total weight, diameter, length of the fruit, shell weight, thickness and groove region thicker bark, number, dry weight, width, thickness and length of almonds, total soluble solids, total acidity, pulp pH and TSS/TTA. The means were grouped by the Scott-Knott test at 0.05 of probability and the analysis of genetic diversity was proceeded. The presence of genetic divergence among populations was observed, with the formation of three groups by Tocher and two groups when using the Unweighted Pair-Group Method Average (UPGMA). Clones CCN 10 and CCN 51 are the most suitable for the production of almonds. The characteristics related to fruit size, length and diameter were the most affected in genetic diversity of genotypes.</p>

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          Advanced Statistical Methods in Biometrie Research

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            Genes: a software package for analysis in experimental statistics and quantitative genetics

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              Cacao breeding in Bahia, Brazil: strategies and results

              Cacao was introduced in Bahia in 1756, becoming later the largest producer state in the country. In order to support the planting of cacao in the region, a breeding program was established by CEPEC at the beginning of the 1970s. For a long time, the program consisted in testing new hybrids (full-sibs) and releasing a mixture of the best ones to farmers. Lately, particularly after the witches´ broom arrival in the region, in 1989, recurrent breeding strategies were implemented, aiming mainly the development of clones. From 1993 to 2010, more than 500 progenies, accumulating 30 thousand trees, were developed by crossing many parents with resistance to witches´ broom, high yield and other traits. In this period, more than 500 clones were put in trials and 39 clones and 3 hybrids were released to farmers. In this paper the strategies and results achieved by the program are reviewed. Overall the program has good interface with pathology and genomic programs.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbeaa
                Revista Brasileira de Engenharia Agrícola e Ambiental
                Rev. bras. eng. agríc. ambient.
                Departamento de Engenharia Agrícola - UFCG (Campina Grande )
                1807-1929
                August 2015
                : 19
                : 8
                : 785-790
                Affiliations
                [1 ] Universidade Federal do Espírito Santo Brazil
                [2 ] Universidade Federal de Viçosa Brazil
                [3 ] Universidade Federal do Espírito Santo Brazil
                [4 ] Universidade Estadual do Norte Fluminense Brazil
                Article
                S1415-43662015000800785
                10.1590/1807-1929/agriambi.v19n8p785-790
                c0a91671-dec2-4def-bdd9-64186dfc3937

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1415-4366&lng=en
                Categories
                AGRICULTURAL ENGINEERING
                ENVIRONMENTAL SCIENCES

                Agricultural engineering,General environmental science
                <italic>Theobroma cacao</italic> L.,genetic breeding,genotypes,genetic diversity,melhoramento genético,genótipos,diversidade genética

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