Correlação entre características quantitativas e qualitativas de frutos de pessegueiros na geração F2 cultivados em região subtropical

Silva, Danielle Fabíola Pereira; Silva, José Osmar da Costa e; Matias, Rosana Gonçalves Pires; Ribeiro, Mariana Rodrigues; Bruckner, Cláudio Horst

doi:10.1590/s0034-737x2013000100008

Cited by 10 publications

(12 citation statements)

References 16 publications

(13 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The others, though some are significant, showed low correlation coefficients, such as the correlation between TA and Vit C (0.04). The same was found by Silva et al (2013) in peach (0.07).…”

Section: Methodssupporting

confidence: 84%

Repeatability, correlation and path analysis of physical and chemical characteristics of peach fruits

Matias¹,

Bruckner²,

Carneiro³

et al. 2014

Rev. Bras. Frutic.

Self Cite

View full text Add to dashboard Cite

-This study aimed to determine the number of measurements necessary to evaluate physical and chemical characteristics of peach fruits, study the relationships between them and their direct and indirect effects on the content of ascorbic acid and total carotenoids. The characteristics skin and pulp color, fruit weight, suture, equatorial and polar diameters, firmness, soluble solids (SS), titratable acidity (TA), SS/TA ratio, ascorbic acid and total carotenoids were evaluated in 39 cultivars of peach and 3 cultivars of nectarine from the orchard of the Universidade Federal de Viçosa. The repeatability coefficient was estimated by ANOVA and CPCOR. Phenotypic correlation coefficients (rf) were estimated and, after the multicollinearity diagnostics, they were unfolded to direct and indirect effects of the explanatory variables on the response variable using path analysis. There was agreement on the magnitude of repeatability coefficients obtained by the two methods; however, they varied among the 14 characteristics. The highest correlations were found between FW, SD, ED and PD. Seven fruits are sufficient to evaluate the physical and chemical characteristics of peach with a correlation coefficient of 90%. The characteristics considered in the path diagrams (b* skin, h o skin, b* pulp, h o pulp, ED, PD, FIR, SS, SS/AT and TC) are not the main determinants of the ascorbic acid. The yellow hue of the pulp (h o pulp) has the potential to be used in indirect selection for total carotenoids. index terms: Prunus persica, repeatability, fruit quality.repetiBilidade, correlaçÕes e anÁlise de trilha de caracterÍsticas fÍsicas e quÍmicas de frutos de pesseGueiro resumo -Objetivou-se determinar o número necessário de medições para a avaliação de características físicas e químicas de frutos de pessegueiro e avaliar as relações entre estas, bem como seus efeitos diretos e indiretos sobre o teor de ácido ascórbico e de carotenoides totais. As características cor da casca e da polpa, peso do fruto, diâmetros sutural, equatorial e polar, firmeza da polpa, sólidos solúveis (SS), acidez titulável (AT), relação SS/AT, teor de ácido ascórbico e carotenoides totais foram avaliadas em 39 cultivares de pessegueiro e 3 cultivares de nectarineira pertencentes ao pomar da Universidade Federal de Viçosa. O coeficiente de repetibilidade foi estimado pelos métodos da ANOVA e CPCOR. Foram estimados os coeficientes de correlação fenotípica (rf) e, após o diagnóstico de multicolinearidade, foi feito seu desdobramento em efeitos diretos e indiretos das variáveis explicativas sobre a variável básica, por meio da análise de trilha. Observou-se concordância nas magnitudes dos coeficientes de repetibilidade obtidos pelos dois métodos. No entanto, estes variaram entre as 14 características. Os maiores valores de correlações observados foram entre PF, DS, ED e DP. Sete frutos são suficientes para a avaliação das características físicas e químicas de frutos de pessegueiro com coeficiente de determinação de 90%. As características consideradas nos ...

show abstract

Section: Methodssupporting

confidence: 84%

Repeatability, correlation and path analysis of physical and chemical characteristics of peach fruits

Matias¹,

Bruckner²,

Carneiro³

et al. 2014

Rev. Bras. Frutic.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is an expected result, since fruits with higher weight have a larger size as well. For example, high correlation between fruit weight and size has been observed in sweet cherry (Zhang et al 2010) and between FH and FWD in peaches grown in subtropical regions (Pereira Silva et al 2013). In the present study, consistent with high correlation coefficients, some QTLs coincided among correlated traits (clusters of QTLs).…”

Section: Linkage Mapping and Comparison Of Wb Linkage Map And Peach Gmentioning

confidence: 99%

“…Fruit weight and size are highly correlated and inherited as complex traits (Zhang et al 2010;Pereira Silva et al 2013). Studies to identify quantitative trait loci (QTLs) associated with these traits have been carried out in peach and several other species.…”

Section: Introductionmentioning

confidence: 99%

Genetic dissection of fruit weight and size in an F2 peach (Prunus persica (L.) Batsch) progeny

et al. 2015

View full text Add to dashboard Cite

Artículo de publicación ISIFruit weight is a quantitative trait influenced by the combined action of several genes and environmental factors. Knowledge of the quantitative trait loci (QTLs) associated with fruit weight and size is a priority to support breeding programmes in peach (Prunus persica (L.) Batsch) because of commercial interest in larger fruits. To this end, we built a genetic map of an F2 progeny of 117 individuals from the cross PI91459 (‘NJ Weeping’) 9 ‘Bounty’ using a single nucleotide polymorphism (SNP) genotyping array for peach (9K SNP array v1). Data for fruit weight, height, width, and depth were recorded for the progeny and both parents over 2 years (2011, 2012). Correlations between the traits fruit weight and size were positive and significant for both years. A SNP map was constructed comprising 1,148 markers distributed over eight linkage groups. The map spans 536.6 cM with an average distance between markers of 0.52 cM, covering 93.6 % of the physical length of the peach genome, thus representing an ideal basis for QTL mapping. QTL analysis led to the identification of a total of 28 QTLs for the considered traits, eleven of which remained stable in both years. We also observed clusters of QTLs, some of which were mapped for the first time, while others correspond to loci previously identified in different progenies and following different approaches

show abstract

“…Peach development is controlled by endogenous and environmental factors. Knowledge of plant responses to environmental variations (temperature, rainfall index, lightness) is important to improve fruit quality and yield (SILVA, et al, 2013). Peach cultivars are classified into five parameters, which are: (1) fruit pulp color, (2) chilling requirements to break dormancy, (3) time of occurrence of fruit ripening, (4) average fruit size and (5) fruit pulp quality.…”

Section: Introductionmentioning

confidence: 99%

Flowering period and fruit quality of peach trees selections and cultivars in the metropolitan region of Curitiba

et al. 2018

View full text Add to dashboard Cite

This study aimed to evaluate the flowering period and the physicochemical characteristics of peaches, aiming to find those most promising for the diversification of the peach crop in the Metropolitan Region of Curitiba, Paraná State. We evaluated 8 selections and three cultivars in Porto Amazonas and 10 cultivars in Araucaria for flowering period, fruit set, diameter and height of fruit, average fruit weight, the skin color, soluble solids (SS), titratable acidity (TA), ratio SS/ TA, hydrogen potential (pH). The flowering period occurred between late June and late September ranging from 16 to 25 days. The fruit set rate was greater than 50% for ‘Cascata 1513’, ‘Cascata 1429’, ‘Cascata 1577’, ‘Cascata 1743’ and for all cultivars in Araucaria. There were significant differences for the other variables assessed. It was concluded that in Araucária, ‘Charme’ and ‘Chimarrita’ are good planting options, have the same duration of the cycle (111 days), being ‘Charme’ a little later. Besides these, ‘Douradão’ and ‘Rubimel’ have good fruit size, moderate acidity and best SS/TA ratio, being earlier than the previous ones. ‘PS 25399’ is the earliest and showed reddish epidermis and great consumer interest. In Porto Amazonas, selections and cultivars tested produced little fruit of small size, being required more studies to be recommended in these area.

show abstract

Correlação entre características quantitativas e qualitativas de frutos de pessegueiros na geração F2 cultivados em região subtropical

Cited by 10 publications

References 16 publications

Repeatability, correlation and path analysis of physical and chemical characteristics of peach fruits

Repeatability, correlation and path analysis of physical and chemical characteristics of peach fruits

Genetic dissection of fruit weight and size in an F2 peach (Prunus persica (L.) Batsch) progeny

Flowering period and fruit quality of peach trees selections and cultivars in the metropolitan region of Curitiba

Contact Info

Product

Resources

About