2004
DOI: 10.1590/s0102-05362004000300030
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Qualidade de frutos de melancia em função de fontes e doses de potássio

Abstract: Foram conduzidos dois experimentos em propriedades rurais próximas à cidade de Borborema (SP), de outubro a dezembro de 2001 e de fevereiro a abril de 2002, com o objetivo de avaliar a qualidade de frutos de melancia, híbrido Tide, em função de fontes e doses de potássio. O delineamento experimental utilizado foi o de blocos casualizados completos, em esquema fatorial 3 x 4, com três repetições, sendo avaliadas as fontes cloreto, nitrato e sulfato de potássio e as doses de 50; 100; 200 e 300 kg ha-1 de K2O. Fo… Show more

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Cited by 16 publications
(12 citation statements)
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References 12 publications
(4 reference statements)
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“…This condition, however, can be confused in fruits with low levels of SS and AT, which will result in a high SS: AT ratio, but with flavor considered tasteless (Chitarra, 2005). The SS: AT ratio values found in this study were above those presented by Grangeiro and Cecílio Filho (2004), evaluating the hybrid Tide (48.2 to 47.2), what can be explained by the low acidity presented in these two treatments, with 0.126 and 0.127 g of citric acid, 100 mL -1 of juice. The probable lack of nutritional balance adjustments of the plants in the growing conditions of Mossoró, RN, can contribute to lower SS:AT ratio and, and consequently, the fruit flavor.…”
Section: Soluble Solids / Titratable Acidity (Ss / At)contrasting
confidence: 62%
“…This condition, however, can be confused in fruits with low levels of SS and AT, which will result in a high SS: AT ratio, but with flavor considered tasteless (Chitarra, 2005). The SS: AT ratio values found in this study were above those presented by Grangeiro and Cecílio Filho (2004), evaluating the hybrid Tide (48.2 to 47.2), what can be explained by the low acidity presented in these two treatments, with 0.126 and 0.127 g of citric acid, 100 mL -1 of juice. The probable lack of nutritional balance adjustments of the plants in the growing conditions of Mossoró, RN, can contribute to lower SS:AT ratio and, and consequently, the fruit flavor.…”
Section: Soluble Solids / Titratable Acidity (Ss / At)contrasting
confidence: 62%
“…A ordem decrescente de teores de nutrientes nos frutos foi: K > N > P > Ca > Mg > S, semelhante ao relatado por Vidigal et al (2007) e Araújo et al (2012), em abóbora 'Tetsukabuto' e 'Miriam', respectivamente, que relataram a seguinte ordem: K > N > P > Ca > S > Mg. Comparando com outras cucurbitáceas percebe-se que o K é o nutriente mais acumulado nos frutos também em melancia (Citrullus lanatus) (Grangeiro e Cecílio Filho, 2004).…”
Section: Resultsunclassified
“…In addition, our value (76 µg g −1 fresh weight) was higher than the reported mean value for watermelons of 49 µg g −1 fresh weight. 47,49 Higher lycopene concentrations were also formed in fruit of grafted tomato plants compared with ungrafted ones. 48 Trudel and Ozbun 50 reported that K effect on lycopene content is related to the importance of that element in protein synthesis and the activity of acetic thiokinase.…”
Section: Discussionmentioning
confidence: 98%
“…Moreover, regarding the flavour of the fruit, in spite of the similar content of soluble sugars responsible for sweetness, the higher value of TSS/TA ratio represents a central parameter because it describes a good balance between sweetness and acidity in fruits. 47 Watermelon fruit is a natural source of lycopene, a carotenoid known for its antioxidant properties, with its action as a potent free radical scavenger. 48 In the current study, grafting significantly increased lycopene concentration (by 40%).…”
Section: Discussionmentioning
confidence: 99%