Influência da temperatura e luminosidade na germinação de sementes das espécies: Selenicereus setaceus, Hylocereus undatus e Hylocereus polyrhizus

Ruths, Rodrigo; Bonome, Lisandro Tomas da Silva; Tomazi, Yasmin; Siqueira, Diogo José; Moura, Gabriela Silva; Lima, Cláudia Simone Madruga

doi:10.5965/223811711812019194

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…The sexual reproduction method provides the necessary genetic variability for the selection of desirable traits in a breeding program, in addition to enabling scientific investigation of factors that influence germination biology, as well as the preservation of the diversity of phytogenetic resources and species conservation through germplasm banks (Ruths et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Effects of gibberellic acid concentration and fruit maturation stage on seed germination and vigor of pitahaya seedlings

et al. 2024

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With increased interest in cultivation, the study of white-fleshed pitahaya (Selenicereus undatus (Haw.) D.R. Hunt, Cactaceae family) seedling production is of fundamental importance in the search for novel techniques to increase cultivation and guarantee homogeneous and productive orchards. The present study investigated the influence of various gibberellic acid (GA3) concentrations and fruit maturation stages on seed germination and vigor of white-fleshed pitahaya seedlings, considering the physiological quality of seedlings produced to support genetic breeding and conservation programs of the species. White-fleshed pitahaya seeds at two maturation stages (physiologically ripe and maintained at 10 °C in Biochemical Oxygen Demand incubators for three months) were treated with varying GA3 concentrations of 0, 50, 100, and 500 mg/L. We observed the influence of fruit storage on seedling germination, emergence, and growth as a function of GA3 concentration. According to the results, seeds extracted from ripe white-fleshed pitahaya fruits grown under the conditions tested here required GA3 application to increase seedling emergence and vigor, with optimal doses in the 150–300-mg/L range. In the case of pitahaya fruits intended for storage for future seed removal and maintained under the same sowing conditions, the application of higher doses of GA3 was necessary when compared to the previous condition, with a minimum dose of 500 mg/L GA3. The present study shows that the maturation stage of white-fleshed pitahaya fruits intended for seed removal influences the quality of seedlings; therefore, the use of seeds extracted from ripe pitahaya fruits without fermentation is more appropriate for the purpose.

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Section: Introductionmentioning

confidence: 99%

Effects of gibberellic acid concentration and fruit maturation stage on seed germination and vigor of pitahaya seedlings

et al. 2024

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“…In Brazil, consumption of this fruit has increased not only due to its exotic appearance but also due to its organoleptic characteristics, such as its sweetness, smooth flavor and low acid content (Moreira, 2012), as well as its antioxidant properties, high commercial value and rusticity (Marques et al, 2011;Ruths et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Cladode size and collection time for pitahaya propagation

et al. 2021

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Cutting is a propagation method with the advantages of early production and uniform cultivation. Some factors influence propagation and rooting, such as the cutting size and the time of year the collection is performed. Thus, the present work aimed to evaluate the ideal size of white-fleshed red pitahaya cladodes and the time of their collection for crop propagation by cutting in view of the physiological quality of the produced clonal plants to enable more appropriate cultural management and increase the cultivation area. The experiment was conducted at the Faculty of Engineering (UNESP) using three cladode sizes (cuttings) with lengths of 10, 20 and 40 cm collected in two seasons (summer and winter). The experimental design used was completely randomized in a split-time scheme, with no dependence on the factors and 20 replicates. Evaluations of the biometric factors related to sprouts and cladode rooting were carried out 60 days after cutting. According to the results, there were significant differences among treatments, with a significant interaction of the number of sprouts. It can be concluded that, regarding the size of the cladodes, it is recommended, when possible, to use cladodes 40 cm in length; regarding the time of collection, it is recommended that collection be conducted in the winter period to favor the development of better-quality clonal plants.

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“…A reprodução sexuada é um importante aliado para o programa de melhoramento genético, devido proporcionar variabilidade genética suficiente para seleção de características relevantes, auxiliar na conservação dos recursos fitogênicos diversos e perpetuação de espécies em bancos de germoplasma (RUTHS et al; A identificação de possíveis genitores para cruzamento que apresentem heterogeneidade são analisados através de variadas técnicas biométricas que estimam medidas de dissimilaridade. Essa medida gera gráficos de dispersão que permite a análise da diversidade genética, identifica particularidades que mais colaboram para a diversidade genética dos indivíduos, além de agrupar os materiais com padrão de similaridade próximo (CRUZ, 2006;FISCHER, 2015).…”

Section: Introductionunclassified

Associação Rara Das Síndromes Xyy E Deleção Do Braço Curto Do Cromossomo 18 Em Um Recém-Nascido: Relato De Caso

Lopes¹,

Monteiro²,

Rodrigues³

et al. 2021

A Genética E a Construção De Novos Paradigmas Nas Ciências Da Vida

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica. A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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Influência da temperatura e luminosidade na germinação de sementes das espécies: Selenicereus setaceus, Hylocereus undatus e Hylocereus polyrhizus

Cited by 5 publications

References 20 publications

Effects of gibberellic acid concentration and fruit maturation stage on seed germination and vigor of pitahaya seedlings

Effects of gibberellic acid concentration and fruit maturation stage on seed germination and vigor of pitahaya seedlings

Cladode size and collection time for pitahaya propagation

Associação Rara Das Síndromes Xyy E Deleção Do Braço Curto Do Cromossomo 18 Em Um Recém-Nascido: Relato De Caso

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