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vol.39 número2ZONEAMENTO AGROCLIMÁTICO DE PEREIRAS EUROPÉIAS E ASIÁTICAS COM POTENCIAL PARA PLANTIO COMERCIAL NA REGIÃO SUL DO BRASILSELEÇÃO VIA MODELOS MISTOS EM FAMÍLIAS SEGREGANTES DE GOIABEIRA BASEADA EM CARACTERÍSTICAS DE PRODUTIVIDADE E DE QUALIDADE índice de autoresíndice de assuntospesquisa de artigos
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Revista Brasileira de Fruticultura

versão impressa ISSN 0100-2945versão On-line ISSN 1806-9967

Resumo

SOARES, BLENDA CALAZANS et al. REPEATABILITY OF PHYSICAL AND CHEMICAL CHARACTERISTICS IN PEQUI FRUITS. Rev. Bras. Frutic. [online]. 2017, vol.39, n.2, e-181.  Epub 26-Jun-2017. ISSN 0100-2945.  http://dx.doi.org/10.1590/0100-29452017181.

The aim of this study was to estimate the effects of populations and mother trees over some characteristics on pequi (Caryocar brasiliense Camb.) fruits as well as their repeatability coefficient. Data came from two populations with 15 mother trees each, covering three years. The following physical and chemical characteristics were evaluated: total fruit weight; external mesocarp weight; number of putamens per fruit; total weight of putamens; total and average pulp weight; and proportion of the weight of lipids and proteins in relation to pulp weight. Analysis of variance was performed using a nested design model. The effects of mother trees within populations were highly significant for all variables under study, while the effects of populations were not for any characteristic, showing that for populations and mother trees, efforts must be focused on the number of mother trees per population rather than on populations. The estimated repeatability coefficients showed high genetic control for total fruit weight; external mesocarp weight; average weight of putamens; average pulp weight; and proportion of the weight of lipids in relation to pulp weight. Therefore, the expression of these characteristics on descendants, by cloning selected mother trees, is likely to be effective.

Palavras-chave : Caryocar brasiliense; repeatability coefficient; mother trees.

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