Horticultura Brasileira | |
Gibberellic acid in vegetative and reproductive development of Phalaenopsis orchid hybrid genus | |
Jean C Cardoso2  Elizabeth O Ono1  João D Rodrigues1  | |
[1] ,USP CENA Dep. Biotecnologia VegetalPiracicaba SP | |
关键词: Phalenopsis; young plants; leaf size; precocity; flowering; quality; Phalenopsis; plantas jovens; tamanho da folha; precocidade; florescimento; qualidade; | |
DOI : 10.1590/S0102-05362012000100012 | |
来源: SciELO | |
【 摘 要 】
The flower industry represents about one billion dollars in Brazil and the development of techniques aimed at flowering control is required. This study evaluated the influence of gibberellic acid (GA3) on the vegetative and reproductive development of young plants of Phalaenopsis FSNT 'Dai-Itigo' hybrid pink color. The application of GA3 was made by foliar sprays at concentrations of 0, 125, 250, 500 and 1,000 mg L -1. The length of leaves increased significantly when using GA3 at low concentrations, but leaf width decreased. The application of GA3 at 125 mg L -1 showed the best results for the promotion of flowering and flower quality of this orchid hybrid. In this treatment, about 50% of plants treated with GA3 flowered about 6-12 months before the plants that were non-treated with this plant growth regulator. The quality of flowering and flowers was best with 125 mg L -1 GA3.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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RO202005130085481ZK.pdf | 737KB | download |