Resumo: A cirigueleira (Spondias purpurea L.) é uma fruteira tropical pertencente à família Anacardiaceae, que produz fruto do tipo drupa e, devido a sua qualidade organoléptica, é muito apreciado em várias regiões do Brasil, sobretudo no Nordeste. Embora a espécie apresente potencial, pesquisas visando à geração de tecnologias que permitam a otimização de cultivos comerciais são escassas, tornando-se importante os estudos relacionados à seleção de plantas matrizes produtivas, cujos frutos apresentem características desejáveis. Objetivou-se com o presente trabalho avaliar a relação entre as características físicas, químicas e físico-químicas de frutos de cirigueleira, por meio de estimativas de correlações fenotípicas e genotípicas, bem como correlações canônicas. Em março de 2015, frutos maduros foram coletados em 17 cirigueleiras localizadas na região Norte do Espírito Santo. Para isso, foram selecionados 10 frutos por planta, todos em condições similares e satisfatórias de maturação fisiológica, sendo avaliados individualmente. As características avaliadas foram: comprimento e diâmetro do fruto, relação comprimento/diâmetro, massa do caroço, da polpa e do fruto, rendimento de polpa, teor de sólidos solúveis (SS), acidez titulável (AT) e ratio (SS/AT). Os dados foram submetidos à análise de variância, em seguida, efetuaram-se as análises de correlação fenotípica e genotípica entre todas as características avaliadas, bem como as correlações canônicas entre características físicas, químicas e físico-químicas. Os resultados permitem afirmar que melhoras no rendimento de polpa podem ser obtidas por meio da seleção de frutos de maior tamanho; e frutos de melhor sabor serão mais facilmente selecionados com base na acidez titulável. Palavras-chave: Ciriguela. Correlações canônicas. Spondias purpurea L. Abstract:The red mombin (Spondias purpurea L.) is a tropical plant of the Anacardiaceae family, which produces drupe-type fruit and which, due to its organoleptic quality, is highly appreciated in various regions of Brazil, especially in the Northeast. Although the species shows potential, research aimed at generating technologies that would enable optimisation of commercial crops is rare, so that studies related to the selection of productive mother plants, whose fruits have desirable characteristics, are important. The objective of this work was to evaluate the relationship between the physical, chemical and physicochemical characteristics of fruit of the red mombin, through estimates of phenotypic, genotypic and canonical correlations. In March of 2015, ripe fruit was collected from 17 mombin trees located in the north of the State of Espirito Santo, Brazil. Ten fruits were selected per plant, all in a similar satisfactory condition of physiological maturity, being assessed individually. The characteristics under evaluation were fruit length and diameter; length to diameter ratio; weight of the stone, pulp and fruit; pulp yield, soluble solids (SS), titratable acidity (TA) and ratio (SS/ TA). The data were submitted...
The objective of the present study was to test and establish mathematical models to estimate the leaf area of Garcinia brasiliensis Mart. through linear dimensions of the length, width and product of both measurements. In this way, 500 leaves of trees with age between 4 and 6 years were collected from all the cardinal points of the plant in the municipality of São Mateus, North of the State of Espírito Santo, Brazil. The length (L) along the main midrib, the maximum width (W), the product of the length with the width (LW) and the observed leaf area (OLA) were obtained for all leaves. From these measurements were adjusted linear equations of first degree, quadratic and power, in which OLA was used as dependent variable as function of L, W and LW as independent variable. For the validation, the values of L, W and LW of 100 random leaves were substituted in the equations generated in the modeling, thus obtaining the estimated leaf area (ELA). The values of the means of ELA and OLA were tested by Student’s t test 5% of probability. The mean absolute error (MAE), root mean square error (RMSE) and Willmott’s index d for all proposed models were also determined. The choice of the best model was based on the non significant values in the comparison of the means of ELA and OLA, values of MAE and RMSE closer to zero and value of the index d and coefficient of determination (R2) close to unity. The equation that best estimates leaf area of Garcinia brasiliensis Mart. in a way non-destructive is the power model represented by por ELA = 0.7470(LW)0.9842 and R2 = 0.9949.
Genetic diversity allows identification of potential intraspecific genotypes in the genus Passiflora. The objective of this study was to examine the morphological and genetic diversity of auxin-induced Passiflora mucronata. The experiments were arranged in a complete randomized block design, with a 9 x 2 factorial arrangement (nine genotypes x presence and absence of auxin, indole-3-butyric acid (IBA)), with four replicates of 16 cuttings. The rooting and vegetative growth responses were variable. Genotype 5 was more responsive in the absence of IBA and genotypes 3, 8 and 9 were more responsive in the presence of IBA. Auxin increased rooting rate and percentage, reducing the average time of root protrusion in eight days. IBA also contributed to increase photosynthesis and dry root and shoot mass in 55.55 and 44.44% of the genotypes, respectively. The highest relative contribution to phenotypic diversity in the absence of auxin was rate (38.75%) and percentage (20.27%) of rooting, whereas in the presence of auxin was stomatal conductance (23.19%) and root dry mass (20.91%). Similarity was found for phenotypic and molecular divergence in the presence of IBA, in which genotypes 1 and 6; genotypes 5, 8 and 9; and genotype 3 were clustered in distinct groups.
RESUMO:Os frutos da ciriguela (Spondias purpurea L.) são muito apreciados devido à excelente qualidade organoléptica, gerando contínuo aumento do consumo do fruto in natura ou processado na forma de diversos produtos. Neste trabalho, objetivou-se estimar a divergência genética entre plantas de ciriguela do Norte do Espírito Santo, com bases em caracteres físicos e químicos. Foram selecionados 10 frutos (cor vermelha predominante) de 17 plantas das cidades de São Mateus, Linhares, Sooretama e Montanha. Os dados foram submetidos à análise de variância inteiramente ao acaso (ANOVA) para investigar a variabilidade entre as plantas. Com os resultados, observou-se que existe divergência genética entre as plantas para todos os caracteres avaliados, e a mais divergente é a Planta 1. O método hierárquico UPGMA e o método de otimização Tocher foram parcialmente concordantes na formação dos grupos heteróticos das plantas. Os caracteres que mais contribuíram para a divergência genética foram MP (39,65%), e MF (31,67%). Palavra-chaves:Spondias purpurea L.. ANOVA. UPGMA. Tocher GENETIC DIVERGENCE OF RED MOMBIN IN THE NORTH OF ESPÍRITO SANTO STATE, BRAZIL SUMMARY:The fruits of red mombin (Spondias purpurea L.) are highly appreciated because of excellent organoleptic quality, generating continuous increase in consumption the fruit "in natura" or processed into various products. This study, the objective was estimate the genetic divergence among red mombin plants in the North of the Espírito Santo, with bases in physical and chemical characters. Were selected 10 fruits (predominantly red) of 17 plants in the cities of São Mateus, Linhares, Sooretama and Montanha. The data were submitted to analysis of variance completely randomized (ANOVA) to investigate the variability between plants. With the results, it was observed that there is genetic diversity among plants for all characters evaluated, and the most divergent is the Plant 1. The hierarchical method UPGMA and the Tocher optimization method were partially concurring in the formation of heterotic groups of plants. . And the characteristics that most contributed to the genetic divergence were MP (39.65%) and MF (31.67%).Keywords: Spondias purpurea L.. ANOVA. UPGMA. Tocher INTRODUÇÃOO gênero Spondias pertence à família Anacardiaceae e possui 18 espécies distribuídas nos neotrópicos, Ásia e Oceania (MITCHELL; DALY, 1995). As Spondias purpurea L. são plantas em domesticação que produzem frutos tipo drupa de boa aparência, qualidade nutritiva, aroma e sabor
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