Produtividade e qualidade de tomates Santa Cruz e Italiano em função do raleio de frutos

Shirahige, Fernando H; Melo, Arlete Mt de; Purquerio, Luís Felipe Villani; Carvalho, Cássia Regina Limonta; Melo, Paulo

doi:10.1590/s0102-05362010000300009

Cited by 40 publications

(47 citation statements)

References 6 publications

(1 reference statement)

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“…However, cultivars Avalon, Debora Max and Netuno showed very similar pH values found by Shirahige et al (2010), where the values ranged from 4.1 to 4.2.…”

Section: Resultsmentioning

confidence: 57%

Physico-chemical and sensory parameters of tomato cultivars grown in organic systems

Araujo¹,

Silva²,

Telhado

et al. 2014

Hortic. Bras.

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The objectives of this research were to perform the physical, chemical and sensorial characterization, for hybrid and open pollinated tomato, within the Santa Cruz and Italian groups, aiming fresh consumption. A total of 14 fresh market tomato cultivars was used, six of them being experimental varieties and eight were commercial ones. The experimental design was of randomized blocks with six replicates and five plants per plot. For the chemicophysical analysis, samples of ripe fruits were randomly extracted from five plants in each plot, labeled and maintained under refrigeration at 5ºC until the next day after harvest. Afterwards, fruits of all cultivars were mixed, ground and divided in triplicates to be submitted to the physicochemical analysis. From the physicochemical analysis it was observed that the value of the ratio between soluble solids (SS)/titratable acidity (TA) was higher in the cultivars IAC 6 and IAC 3. In relation to the SS content, the highest values were obtained by cultivars IAC 1 and IAC 6. In order to evaluate the commercial value of the cultivars, a sensorial analysis was carried out with fruits tasted by 75 individuals, using a hedonic scale of seven points. The data were analyzed by variance analysis and grouping of means. The cultivars of the Italian group IAC 4, IAC 6, Netuno and Bari; as well as the cultivars of the Santa Cruz group IAC 1, IAC 5, HTV 0601 and Débora Victory reached the best scores in all the sensorial traits evaluated. All the cultivars presented reasonable quality of the fruits, with SS/TA ratio values higher than 16 and SS values higher than 4ºBrix.

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“…However, cultivars Avalon, Debora Max and Netuno showed very similar pH values found by Shirahige et al (2010), where the values ranged from 4.1 to 4.2.…”

Section: Resultsmentioning

confidence: 57%

Physico-chemical and sensory parameters of tomato cultivars grown in organic systems

Araujo¹,

Silva²,

Telhado

et al. 2014

Hortic. Bras.

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“…Os teores de licopeno variaram conforme o híbrido e o ano do cultivo e foram semelhantes aos encontrados por Shirahige et al (2010) e Georgé et al (2011. No primeiro ano, o híbrido Laura se destacou dos demais (72,1 µg g -1 ), enquanto no segundo ano, o híbrido com maior teor foi AP-529 (47,9 µg g -1 ).…”

Section: Híbrido Fir (N) Esp (Mm) Ss (°Brix) At (Mg 100 G -1 ) Ss/atunclassified

Desempenho agronômico e qualidade físico-química de híbridos de tomateiro em cultivo rasteiro

et al. 2013

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Palavras-chave: Solanum lycopersicum, produtividade, características físico-químicas. ABSTRACT Agronomic performance and physico-chemical quality in tomato hybrids grown without guidingThe evaluation of cultivars within the same soil and climatic conditions allows comparison of genotypes for its yield and quality potential, seeking to establish the most adapted for each region. This study aimed to evaluate the yield and fruit quality of tomato hybrids grown without guiding, for fresh consumption and processing. The field experiment was carried out in Pinhão, Paraná state, Brazil, in two years (2009/2010 and 2010/2011). The experimental design was a randomized complete block with four replications. Ten tomato hybrids were used (Supera, Granadero, AP-529, AP-533, Kátia, Laura, Fascínio, Tinto, Red Spring and Vênus). We evaluated total and marketable yield, average fruit weight, fruit damage, presence of peduncle; and characteristics of quality: dry mass, fruit firmness, mesocarp thickness, soluble solids, titratable acidity, soluble solids/ titratable acidity ratio, pH, ascorbic acid, lycopene and reducing sugars. Granadero was the hybrid with the highest total yield (112.5 t ha -1 in 2009/2010 and 78.5 t ha -1 in 2010/2011) and marketable yield (88.7 t ha -1 in 2009/2010 and 69.0 t ha -1 in 2010/2011) in two years of experiment, as well as the highest dry matter and soluble solids and the highest mesocarp thickness. Tinto and Venus also stood out in total and marketable yield and the hybrid which had the highest average fruit weight was Venus (99.9 g). For the soluble solids/ titratable acidity ratio, Granadero, Venus, Supera, Tinto and Fascínio showed ratios above 10 in both years. Laura, Red Spring and Venus showed good values for ascorbic acid and lycopene. Overall, the best performing hybrid for traits and for both segments was Granadero, but this hybrid showed low genotypic stability. So Venus and Tinto, despite lower yields, could be recommended because they presented good quality and stability to the region.

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“…Leal and Mizubuti (1975) attributed the smaller mass reduction of tomatoes to the smaller size of the peduncle scar. Such a mass decrease based on the water loss of the fruits is due to the high respiration rate of the tomato plant provided by the peduncle scar (Shirahige, 2010). The loss of water, besides the action of polygalacturonase and pectinmethylesterase enzymes (Resende et al, 1997), contributes to make the tomato fruits less consistent.…”

Section: Resultsmentioning

confidence: 99%

“…The loss of water, besides the action of polygalacturonase and pectinmethylesterase enzymes (Resende et al, 1997), contributes to make the tomato fruits less consistent. Thus, fruits with smaller peduncle scar associated to ripening mutant alleles, may present smaller mass reduction, favoring increased postharvest preservation (Shirahige, 2010). Thus in the selection of genotypic background with mutant allele promoter greatest average number of days being reached, when the goal is the longest longevity of fruits.…”

Section: Resultsmentioning

confidence: 99%

“…It plays an important role in the national economy, as it is one of the main vegetable products (Shirahige et al, 2010). It is characterized for being a climacteric fruit whose ripening usually begins with an alteration in the color of the distal portion, migrating to the neighboring regions by the free diffusion process, until the maturation process reaches the whole of the fruit (Moura et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Postharvest Conservation of Structural Long Shelf Life Tomato Fruits and With the Mutant Rin Produced, in Edaphoclimatic Conditions of the Southern State of Tocantins

et al. 2015

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The high temperature of growth environment can affect the postharvest quality of tomato fruits. In this situation, an alternative for the farmers is the use of hybrid cultivars that produce long shelf life fruit with longer postharvest shelf life when compared to normal varieties of fruits. The objective of this research was to compare the postharvest conservation of fruits of structural long shelf life tomato hybrids and with the mutant rin. The fruits evaluated were from fifteen tomato genotypes produced under the edaphoclimatic conditions of the southern State of Tocantins, being four of them long shelf life type hybrids (with rin allele) which were: Tyler, Rebeca, Carmem and AF 13527; nine of them structural long shelf life hybrids: Lumi, Débora Max, Michelli, Tammy, AF 12525, AF 11097, AF 13363, AF 13364 and AF 13525; and two normal fruit cultivars: Santa Clara and Drica. The fruits were harvested at the breaker stage and stored in a controlled environment (20 °C and relative humidity of 60%). The half-life firmness of fruits of genotypes with a structural genotypic long shelf life background ranged from 6.25 to 13.44 days for the genotypes Tammy and AF13525, respectively, not differing from the long shelf life genotypes with rin allele. Despite the fact that daytime temperatures are higher than those recommended for the tomatoes crops, it was observed that if the fruits are stored in appropriate conditions (20 °C and relative humidity of 60%), the color and firmness of the fruits with a long shelf life genotypes with rin allele and structural genotypic background evolve more slowly than the fruits of normal genotypes. Under these conditions, it took the fruits 7 to 8 days to acquire a red color on more than 80% of the surface after being harvested.Index terms: Solanum lycopersicon; hybrids; firmness; color. RESUMOA temperatura elevada do local de cultivo pode afetar a qualidade pós-colheita dos frutos do tomateiro. Nessa situação, uma alternativa para os produtores, é o uso de cultivares híbridas que produzem frutos longa vida com maior tempo de conservação em pós-colheita, quando comparado com cultivares de frutos normais. Neste trabalho, objetivou-se avaliar a conservação em pós-colheita de frutos de híbridos de tomateiro longa vida estrutural e com mutante rin cultivados em duas épocas sobre ambiente protegido na região Sul do estado do Tocantins. Os tratamentos foram constituídos de 15 genótipos, sendo quatro híbridos com frutos tipo longa vida (com alelo rin) que foram: Tyler, Rebeca, Carmem e AF 13527; nove híbridos com frutos tipo longa vida estrutural: Lumi, Débora Max, Michelli, Tammy, AF 12525, AF 11097, AF 13363, AF 13364 e AF 13525 e duas cultivares de frutos normais: Santa Clara e Drica. Os frutos foram colhidos no estádio de breaker e armazenados em ambiente controlado (20 ºC e umidade relativa de 60%). A meia vida da firmeza dos frutos dos genótipos com background genotípico longa-vida estrutural variou de 6,25 a 13,44 dias nos genótipos Tammy e AF13525, respectivamente, não diferind...

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Produtividade e qualidade de tomates Santa Cruz e Italiano em função do raleio de frutos

Cited by 40 publications

References 6 publications

Physico-chemical and sensory parameters of tomato cultivars grown in organic systems

Physico-chemical and sensory parameters of tomato cultivars grown in organic systems

Desempenho agronômico e qualidade físico-química de híbridos de tomateiro em cultivo rasteiro

Postharvest Conservation of Structural Long Shelf Life Tomato Fruits and With the Mutant Rin Produced, in Edaphoclimatic Conditions of the Southern State of Tocantins

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