Resumo

JARQUIN-NIETO, Ignacio Antonio et al. Use of cytokinins and floral protectors to enhance the quality of cut-rose flower buds. Rev. Chapingo Ser.Hortic [online]. 2014, vol.20, n.3, pp.297-305. ISSN 2007-4034.  https://doi.org/10.5154/r.rchsh.2013.05.020.

In the State of Mexico, cut rose (Rosa x hybrida) grown under greenhouse conditions has as a commercial constraint the low phytosanitary quality of its flower buds. To improve this quality, three growth regulators containing cytokinins (two commercial products and one prepared at a dose of 0.001 ppm from a technical-grade growth regulator, all at three frequencies of application) and CP* Floral Protector (FP) were evaluated in cut Rosa x hybrid 'Polo' grown under greenhouse conditions in Villa Guerrero, State of Mexico. A completely randomized experimental design with 20 treatments and four replications in a factorial arrangement was used. Treatments were applied to flower buds of 0.5 cm in diameter with closed sepals. Evaluations were made according to commercial harvest criteria when the petals begin to separate from the center of the flower. The FP and application of growth regulators increased bud diameter and length (P ≤ 0.05), but there was no effect on peduncle length or the number of days to harvest. FP use prevented insect damage and increased the number of export-quality buds. CP^® floral protector and growth regulators improve the quality of cut roses.

Palavras-chave : Rosa x hybrida; growth regulator; thrips; ornamental plants.

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