Heterose Em Híbridos De Melancia

Tavares, Aline Torquato; Lopes, Danilo Alves Porto da Silva; Alves, Francielly Quíteria Guimarães; Santos, Gil Rodrigues dos; Nascimento, Ildon Rodrigues do

doi:10.32404/rean.v6i2.2658

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…Isso significa que, com o aumento das dosagens de nitrogênio, aumenta-se também a relação polpa/casca. Apesar de ser uma característica desejada, o afinamento em excesso da casca pode prejudicar a resistência do fruto ao transporte, do manejo ao acondicionamento, haja vista que, entre os cultivares utilizados no Brasil, aqueles de frutos com casca mais espessa são mais adequados ao tipo de transporte predominante no mercado interno (Tavares et al 2019).…”

Section: Fonte: Autores (2022)unclassified

Qualidade de frutos de melancia sob diferentes dosagens de adubação nitrogenada

Anjos

Santos

Júnior

et al. 2022

RSD

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Este trabalho teve como intuito analisar o efeito da aplicação de nitrogênio sobre os componentes de qualidade de frutos da melancia “granada”. Para isso, foi realizado um experimento na fazenda Extrema, situada no município de Arinos, estado de Minas Gerais, no período de setembro a dezembro de 2018. O delineamento experimental adotado foi o de blocos inteiramente casualizados, com cinco tratamentos e quatro repetições. Os tratamentos constituíram-se de cinco níveis de adubação nitrogenada: 0, 40, 80, 160 e 320 kg ha-1 de N. As análises dos frutos foram feitas no laboratório de Química do Instituto Federal de Educação, Ciência e Tecnologia Norte de Minas Gerais – Campus Arinos. Foram realizados testes físico-químicos para a determinação de sólidos solúveis totais (°Brix), pH, acidez titulável (AT) e espessura de casca. A adubação nitrogenada apresentou efeito significativo sobre as variáveis analisadas, exceto no pH dos frutos. O maior teor de sólidos solúveis (8,27 °Brix) foi obtido ao nível de 171,7 kg ha-1 de N. Para AT e espessura de casca, foram ajustados modelos lineares significativos (p<0,01).

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Section: Fonte: Autores (2022)unclassified

Qualidade de frutos de melancia sob diferentes dosagens de adubação nitrogenada

Anjos

Santos

Júnior

et al. 2022

RSD

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“…In the United States, in addition to the icebox type, commercial watermelon fruits are, in general, classified into four categories: small (5.5-8.0 kg), medium (8.1-11.0 kg), large (11,1-14.5 kg) and extra-large (greater than 14.5 kg) [9]. Martins et al (2013) [25] reported average fruit weight around 3.7 kg under uses of biostimulants in the 'Quetzali' and 'Style' hybrids whereas Tavares et al (2019) [3] investigated the effect of heterosis in 15 watermelon hybrids and reported average fruit weight ranging from 6 to 10 kg, both results outstanding 2-4fold than all of our studied hybrids. In the Brazilian market, it still prevails the appreciation for fruits with weight above 6 kg, Crimson Sweet standard [25].…”

Section: Hybrids Physical Characteristics Fw (G) Ld (Cm) Td (Cm) Fsi St (Cm) F (N)mentioning

confidence: 99%

“…The soluble solids are a valuable measurement due to the higher total soluble solids content being associated with the greater commercial performance of the selected hybrid [3]. It is also noteworthy that soluble solids are very influenced by environmental factors, among which stand out the genotype, planting location and crop management [31].…”

Section: Hybrids Physical Characteristics Fw (G) Ld (Cm) Td (Cm) Fsi St (Cm) F (N)mentioning

confidence: 99%

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Prospection of the quality and bioactive potential of the seedless watermelon

Oliveira

Alves²,

Silva

et al. 2020

Sci. Plena

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The present investigation aimed to evaluate the prospection of the quality and the bioactive potential of four seedless watermelon hybrids. Fruits were collected from the commercial farms located at the Jaguaribe-Açu agricultural Valley/RN and Jaguaribe Valley/CE, Brazil. Plant material included the hybrids 'Ashira', 'Extasy', 'Mickylee' and 'Valentino'. The following parameters were evaluated: fruit weight; longitudinal and transverse diameter; fruit shape index; pulp firmness; pulp color; shell thickness; soluble solids, titratable acidity, pH, soluble solids and titratable acidity ratio, total and reducers soluble sugars, vitamin C, total carotenoids, lycopene, yellow flavonoids, total anthocyanins and total polyphenols. The trial was carried out by a completely randomized design. The comparison of means was performed using one way ANOVA at the Tukey HSD test. All the hybrids showed fruits small, i.e., "icebox" type, with mean values lower than 5.5 kg, spherical shape and a higher portion of edible pulp. The fruits showed high pulp firmness leading a great resistance to mechanical injuries sustained due to transport, besides long postharvest shelf life. 'Ashira' showed the highest proportion of sugars present in the fruit due to the increase of 73% in the SS/AT ratio compared to the other hybrids. 'Extasy' presented high content of total carotenoids whereas 'Ashira' stood out in the content of total polyphenols. The hybrids are promising alternatives to the local and export watermelon market, in view of the high quality and bioactive potential linked to the good adaptability and stability under the growth conditions.

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“…The methodology of Gardner and Eberhart (1966) for diallel crosses is one of the most preferred for allogamous plants because it allows for a detailed examination of the components of heterosis (NASCIMENTO et al, 2010;TAVARES et al, 2019) and of the types of effects involved in controlling the trait(s) of interest.…”

Section: Introductionmentioning

confidence: 99%

Combining Ability and Gene Action in the Expression Traits in Maxixe

et al. 2022

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The gherkin (Cucumis anguria L.) is a species of African origin, belonging to the family of cucurbits, widely cultivated in Brazil, but with little information on the genetic control of the characteristics. Additive gene effects, reflected in estimates of variety or performance effects “per se,” are important in the expression of traits in maxixe genotypes. The objective of this study was to estimate the combinatorial capacity and the gene effect in gherkin genotypes. Two experiments were conducted in 2 years in a randomized block design with three replications. The treatments were nine parents of gherkin and their hybrid combinations obtained in a diallel cross. Varietal heterotic expression as the greatest in the characteristics of fruit diameter, average weight, and firmness of the fruit pulp. In gherkin genotypes, the largest deviations due to non-additive gene effects were in the characteristics of fruit diameter, length, and yield. In general, the crosses that had commercial genotypes as parents, presented high average estimates, associated in some cases with favorable estimates of non-additive gene effects.

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Heterose Em Híbridos De Melancia

Cited by 3 publications

References 11 publications

Qualidade de frutos de melancia sob diferentes dosagens de adubação nitrogenada

Qualidade de frutos de melancia sob diferentes dosagens de adubação nitrogenada

Prospection of the quality and bioactive potential of the seedless watermelon

Combining Ability and Gene Action in the Expression Traits in Maxixe

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