Efecto del Etefón (Etileno) sobre la promoción floral de Billbergia Pyramidalis (Sims) Lindley (original) (raw)

Flowering promotion of Billbergia pyramidalis (Sims) Lindley by ethephon sprays Billbergia pyramidalis is an important ornamental bromeliad for landscape and potting. The capacity of ethylene to promote its flowering was investigated by spraying potted plants with ethephon (ethylene releaser) in three experiments conducted in greenhouse at 25,4 oC and 74 % RH. In the first experiment, 6-month old plants having from 12 to 18 leaves were sprayed with 0, 3, 6 y 9 mg·L -1 of ethephon in two applications at weekly interval. All treated plants flowered, except the control; however, ethephon concentrations above 3 mg·L -1 resulted in incomplete and deformed inflorescences, and early senescence. In a second trial, 3-month old plants ranging from 10 to 13 leaves were sprayed with 0, 1, 2 y 3 mg·L -1 of ethephon in one or two applications at weekly interval. Flowering occurred 9 days after treatments, except the control. The greatest flowering (55 %) was obtained at 1 and 2 mg·L -1 of ethepho...

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