Reproductive phenology of red pitaya in Lavras, MG, Brazil/Fenologia reprodutiva de pitaia vermelha no municipio de Lavras, MG

The study of phenology can contribute to improve the productivity of crops and fruit quality. The study was conducted to evaluate the reproductive phenology of red pitaya in Lavras, MG, Brazil. It was evaluated in one hundred plants of pitaya (Hylocereus undatus (Haw.) Britton & Rose) the subpha...

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Veröffentlicht in:Ciência rural 2011-06, Vol.41 (6), p.984
Hauptverfasser: Marques, Virna Braga, Moreira, Rodrigo Amato, Ramos, Jose Darlan, de Araujo, Neimar Arcanjo, Silva, Fabio Oseias dos Reis
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Zusammenfassung:The study of phenology can contribute to improve the productivity of crops and fruit quality. The study was conducted to evaluate the reproductive phenology of red pitaya in Lavras, MG, Brazil. It was evaluated in one hundred plants of pitaya (Hylocereus undatus (Haw.) Britton & Rose) the subphase's periods from the issuance of buds to fruit ripening from 2008 to 2010. The bud develops from 19 to 21 days. The anthesis is nocturnal which lasts about 15 hours. The maturation occurs from 30 to 40 days after flower opening, when the fruit acquires color pink to deep red and firm texture. In Lavras, MG the reproductive period of red pitaya occurs from November to May and the time of appearance of flower buds to fruit harvest is from 50 to 60 days. Key words: Cactaceae, Hylocereus undatus, Pitahaya. O estudo do comportamento fenologico pode contribuir para melhorar a produtividade das culturas e a qualidade dos frutos. O trabalho foi realizado com o objetivo de avaliar a fenologia reprodutiva da pitaia vermelha em Lavras, MG, Brasil. Foram avaliados em cem plantas de pitaia vermelha (Hylocereus undatus (Haw.) Britton & Rose) os periodos das subfases desde a emissao das gemas ate a maturacao dos frutos de 2008 a 2010. O botao floral se desenvolve no periodo de 19 a 21 dias. A antese e noturna que dura aproximadamente 15 horas. A maturacao do fruto ocorre de 30 a 40 dias apos a abertura da flor, quando o fruto adquire a coloracao rosa a vermelho intenso e a textura firme. Em Lavras, MG o periodo reprodutivo da pitaia ocorre de novembro a maio e tempo do aparecimento do botao floral ate a colheita do fruto e de 50 a 60 dias. Palavras-chave: Cactaceae, Hylocereus undatus, Pitahaya.
ISSN:0103-8478