Development of seedlings of red pitaya (Hylocereus undatus Haw) in different substrate volumes
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Data
2008-01-01
Título da Revista
ISSN da Revista
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Editor
Editora da Universidade Estadual de Maringá (EDUEM)
Resumo
Com a procura cada vez maior de alternativas por parte dos produtores rurais e de frutas exóticas pelos consumidores, o mercado de frutíferas tem crescido consideravelmente. Neste contexto, a pitaya vem sendo procurada não apenas pelo exotismo de sua aparência, como também por suas características organoléticas. O presente trabalho foi realizado objetivando avaliar a influência do volume de substrato no desenvolvimento de mudas de pitaya vermelha, utilizando-se bandejas de poliestireno expandido com diferentes volumes de células: 10, 15, 30 e 65 mL. As avaliações, realizadas aos 90 dias, foram quanto: porcentagem de sobrevivência; ao número e altura dos cladódios (cm), ao comprimento da maior raiz (cm); às massas fresca e seca dos cladódios e das raízes (gramas). O delineamento experimental foi inteiramente casualizado. Os dados de porcentagem de sobrevivência foram transformados em arc sen para fins de análise estatística e as médias comparadas pelo teste de Tukey, a 5% de probabilidade. A sobrevivência e o desenvolvimento vegetativo das mudas de pitaya vermelha através de sementes foram diretamente proporcionais ao volume de substrato usado no experimento. Para formação de mudas de pitaya vermelha através de sementes é recomendado o uso de containeres com capacidade de 65 mL.
With the ever-increasing search for alternatives by producers and demand for exotic fruits by consumers, the market for fruits species has grown considerably. In this context, the pitaya has been sought not only for its exotic appearance, but also for its organoleptic characteristics. The present research was conducted with the objective of evaluating the influence of the substrate volume in the development of seedlings of red pitaya, by using polystyrene trays expanded with different volumes of cells: 10, 15, 30 and 65 mL. The evaluations, conducted during 90 days, evaluated: survival percentage; number and height of stems (cm); largest root length (cm); fresh and dry masses of the stems and roots (g). The delineation was entirely randomized. The values of survival percentage were transformed in arc sin and the averages were compared by the Tukey test at 5%. The survival and vegetative development for seedlings of red pitaya were directly proportional to the volume of the substrate used. In order to form seedlings of red pitaya from seeds, the use of containers with 65 mL of capacity is recommended.
With the ever-increasing search for alternatives by producers and demand for exotic fruits by consumers, the market for fruits species has grown considerably. In this context, the pitaya has been sought not only for its exotic appearance, but also for its organoleptic characteristics. The present research was conducted with the objective of evaluating the influence of the substrate volume in the development of seedlings of red pitaya, by using polystyrene trays expanded with different volumes of cells: 10, 15, 30 and 65 mL. The evaluations, conducted during 90 days, evaluated: survival percentage; number and height of stems (cm); largest root length (cm); fresh and dry masses of the stems and roots (g). The delineation was entirely randomized. The values of survival percentage were transformed in arc sin and the averages were compared by the Tukey test at 5%. The survival and vegetative development for seedlings of red pitaya were directly proportional to the volume of the substrate used. In order to form seedlings of red pitaya from seeds, the use of containers with 65 mL of capacity is recommended.
Descrição
Palavras-chave
Seed, stems, Growth, height, Sementes, cladódios, Crescimento, altura
Como citar
Acta Scientiarum. Agronomy. Editora da Universidade Estadual de Maringá (UEM) - EDUEM, v. 30, p. 697-700, 2008.