Influência da época de colheita no teor de sólidos solúveis em frutos de minitomate

Maciel, Gabriel Mascarenhas; Fernandes, Marco Aurélio Rocha; Hillebrand, Vanessa; Azevedo, Breno Nunes Rodrigues de

doi:10.14808/sci.plena.2015.120203

Cited by 11 publications

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“…It can be stated that the SSC of the minitomato fruit was influenced by the genetic material (hybrid) and the position of the cluster in which the fruits were harvested (1st, 2nd, 3rd, 4th and 5th clusters). There are reports that in tomato, genetic factors can influence SSC in tomatoes (Garcia andBarrett, 2006), industry (Schwars et al, 2013) and also in minitomatoes hybrids (Maciel et al, 2015a). These variations in SSC between different genotypes may be attributed to the genetic differences in the capacity of importing photo assimilates by fruits.…”

Section: Resultsmentioning

confidence: 99%

“…The SSC is expressed in ºBrix, which in turn represents the sugars and acids that are present in the fruit and directly influences the flavor of it, when in natura consumption (Ferreira et al, 10.30612/agrarian.v12i43.8948 Finzi et al, v.12, n.43, p.33-39, Dourados, 20192006. The higher the SSC, sweeter is the taste of the fruit, which are preferred by consumers (Schwarzet et al, 2013, Maciel et al, 2015a. Several factors can influence the SSC in tomato fruits, as the growth habit, which reflects directly on the phenological stage of the crop (Piotto and Peres, 2012;Maciel et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…One of the major obstacles faced by producers of minitomatoes is the changes in SSC content of the fruit during the harvest, which are presented by commercial cultivars (Maciel, et al, 2015a). For this reason, it is essential to evaluate the genetic divergence of genotypes based on the SSC, as well as the variation of SSC as a function of the position of the clusters.…”

Section: Introductionmentioning

confidence: 99%

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Soluble solids monitored in the clusters in minitomato hybrids from dwarf lines

et al. 2019

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On minitomatoes, the soluble solids content (SSC) is a fundamental characteristic for commercialization. Therefore, is essential to evaluate the genetic diversity among the genotypes, looking their SSC and also the SSC variation, related to the position of the cluster, mainly due to the new technologies – tomato hybrids obtained from dwarf lines. In this sense, the objective of the experiment was to evaluate the genetic variability and the influence of the cluster’s position on the SSC, in minitomato genotypes that were obtained from dwarf lines. The experiment were conducted on a greenhouse and set up in a completely randomized design, with subdivided portion of 13 hybrids x 5 cluster’s position and four replications. The SSC of the fruits were evaluated according with their position of the clusters, being the values expressed in 0Brix. The genetic diversity was obtained by multivariate analyzes, using the generalized distance of Mahalanobis, utilizing different grouping methods (UPGMA and Tocher). The hybrids performance for SSC was checked by the Scott-Knott test (p=0.005). The cluster’s position influenced on the SSC of the minitomatoes fruits and the first cluster of all hybrids that were evaluated, presented the highest SSC. Besides that, the highest 0Brix variability among the genotypes occurred when the fruits were harvested on the fifth and first cluster. Most hybrids originated from dwarf lines did not presented a reduce on 0Brix values during the harvests.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soluble solids monitored in the clusters in minitomato hybrids from dwarf lines

et al. 2019

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“…The TSS represent the sugars and acids in the plant material. According to some studies, the higher the TSS, the better the flavor and aroma; thus, it is an important factor for consumers of fresh foods (SOBREIRA et al, 2010;MACIEL et al, 2015) such as microgreens, whose attractive characteristics are flavor and visual appearance. Therefore, this is a parameter of evaluation for microgreens, since different production systems, substrates, and nutrient supply can result in products that will provide different experiences to the consumer.…”

Section: Resultsmentioning

confidence: 99%

Purple Cabbage Microgreens Grown in Different Substrates and Nutritive Solution Concentrations

2019

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Microgreens are young plants that are consumed at the seedling stage, which present short production cycle and require little space for growing. The objective of the present study was to evaluate the yield and nutritional quality of purple cabbage (Brassica oleracea var. capitata f. rubra) microgreens grown in different substrates and nutrient concentrations in the nutritive solution, in a recirculating irrigation system. The experiment was conducted in a protected environment at the Faculty of Agronomy (UFRGS), in Porto Alegre, RS, Brazil. A completely randomized design and three replications were used, with a 4×3 factorial arrangement consisted of four commercial substrates (CSC® vermiculite, Beifiur® S10, Carolina Soil® seedling, and Carolina Soil® organic) and three nutrient concentrations in the nutritive solution (0%, 50%, and 100%). A sub-irrigation system was used for the irrigations. The variables evaluate were: shoot fresh matter yield (SFMY), shoot dry matter yield (SDMY), shoot height at harvest (SHH), production cycle (precocity), and total soluble solids (TSS), total chlorophyll, and carotenoid contents. The different substrates had no effect on the SFMY, SDMY, and SHH of the purple cabbage microgreens; the increasing addition of nutrients to the nutritive solution increased the values of these variables. The TSS and total carotenoid contents decreased as the nutrient concentration in the nutritive solution was increased. The responses of total chlorophyll contents to the substrates and the nutrient concentrations in the nutritive solution varied.

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“…The knowledge of the growth habit in minitomato hybrids from dwarf lines is essential for growers and seed companies, because the growth habit reflects directly the phenological stage of the crop and can influence the productivity and the soluble solids of the mini-tomato fruits (MACIEL et al, 2015a;VINCENT et al, 2015;MACIEL et al, 2016). Although that 100% of the hybrids obtained by dwarf line UFU-72152F have presented indeterminate growth habit, one of the main advantages of the incorporation of dwarfing genes in the mini-tomato is the presence of shorter internodes, which confer more compact plants PANTHEE, 2012;GARDNER, 2013a,b).…”

Section: Resultsmentioning

confidence: 99%

Growth habit in mini tomato hybrids from a dwarf line

2017

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ABSTRACT:The growth habit directly influences the tomato architecture, impacting on agronomic performance of mini-tomato hybrids. However, little is known about the growth habit of mini-tomatoes hybrids obtained by the crossing of dwarf lines versus normal lines with different growth habits. The objective of this study was to determine the type of growth that occurs when crossing a mini-tomato dwarf line versus normal phenotype lines with indeterminate, determined and semi-determinate growth habit. The methodology consisted of biparental crosses [determined from a cross between a dwarf line with normal lines of different growth habits (determinate, semi-determinate and indeterminate)] and reciprocal backcrosses of the F1 to the parents [normal lines (P 1 ) and dwarf line (P 2 )], and obtained the F2 generation. Was evaluated phenotypically the growth habit in each generation. The growth habit proportions of F 1 (P 1 xP 2 ), F1 (P 2 xP 1 ), F 2 , F 1 RC 1 (P 1 ) and F 1 RC 1 (P 2 ), were classified after checking the expected and observed frequencies using the χ² test (F= 0.05). Was concluded that, when the determined and semi-determined growth habits are used as parents to produce hybrids, in F 2 population growth habits shows 3:1 type segregation. Futhermore, regardless of the normal parent growth habit, the hybrids (F 1 ) always will show indeterminate growth when they are crossed with the mini-tomato dwarf line of this study.

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Influência da época de colheita no teor de sólidos solúveis em frutos de minitomate

Cited by 11 publications

References 12 publications

Soluble solids monitored in the clusters in minitomato hybrids from dwarf lines

Soluble solids monitored in the clusters in minitomato hybrids from dwarf lines

Purple Cabbage Microgreens Grown in Different Substrates and Nutritive Solution Concentrations

Growth habit in mini tomato hybrids from a dwarf line

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