Abstract
The aim of the study was to characterize the effect of cooling duration (12 and 14 weeks at a temperature +9°C) on growth and quality of five varieties of cut flowers tulips: ‘Alma Adamkiene’, ‘Foxtrot’, ‘Freeman’, ‘Parade’ and ‘Yellow Crown’. Flower stems were harvested when petals showed color and the number of days to flowering, flower quality and their vase life were evaluated. Prolonged cooling period from 12 to 14 weeks reduced the time of forcing in the greenhouse of all tested varieties. Tulips cooled for 14 weeks produced shorter stems and tepals but characterized with longer vase life. Length of cooling did not affect the fresh weight of cut flowers. The most useful for forcing were varieties ‘Foxtrot’, ‘Freeman’ and ‘Parade’ cooled for 14 weeks. Varieties with double flowers cooled for 12 weeks had flower buds hidden between the leaves. The variety ‘Yellow Crown’ cooled for 12 weeks produced a large percentage of flowers blast, and required cooling for more than 14 weeks. In ‘Alma Adamkiene’ cut flowers were of good quality, but shoots very strongly elongated after harvesting, which reduced their decorative value.
References
Hetman J., Laskowska H., Durak W., 2000. Oddziaływanie nawozów niekonwencjonalnych na plon i pędzenie tulipana. Zesz. Nauk ISiK 7, 139–44.
Inamoto K., Hase T., Doi M., Imanishi H., 2000. Effect of duration of bulb chilling on dry matter distribution in hydroponically forced tulips. Sci. Hort. 85, 95–06.
Krause J., 1998. Ocena przydatności wybranych odmian tulipanów Fostera do pędzenia w doniczkach. Fol. Univ. Agric. Stetin. 187, Agricultue 43–47.
Krause J., 2000. Pędzenie tulipanów w wodzie, w: Mat. z XIII Ogólnopol. Zjazdu Kwiac. pt. „Techniki szklarniowe i rośliny cebulowe”, Skierniewice 19–20 X 2000 r., 19–22.
Krause J., 2006. Tulipan, w: Kwiaty cięte uprawiane pod osłonami, red. M. Jerzy. PWRiL, Poznań, 293–309.
Krause J., Zygmunt K., 2000. Ocena przydatności kilkunastu odmian tulipanów do pędzenia w wodzie. Rocz. AR w Poznaniu, 323, Ogrodnictwo 31, cz. 1, 93–100.
Le Nard M., De Hertogh A., 1993. Tulipa, w: The physiology of flower bulbs. Elsevier, Amsterdam–London–New York–Tokyo, 617–682.
Rietveld P.L., Wilkinsoon C., Franseen H.M., Balk P.A., van der Plas L., Weisbeek P. J., de Boer A.D., 2000. Low temperature sensing in tulip (Tulipa gesneriana L.) is mediated through an increased response to auxin. J. Exp. Bot. 51, 344, 587–594.
Saniewski M., Kawa-Miszczak L., 1992. Hormonal control of growth and development of tulips. Acta Hort. 325, 43–54.
Sochacki D., Chojnowska E., 2005. Quality evaluation of forced tulip flowers depending on bulb production environmental and forcing medium. Acta Hort. 673, 675–678
Sochacki D., Chojnowska E., Treder J., 2005. Wpływ warunków uprawy cebul i podłoża do pędzenia na jakość kwiatów ciętych tulipanów. Zesz. Prob. Post. Nauk Rol. 504, 257–262.
Sprzączka I., Laskowska H., 2007. Wpływ długości chłodzenia cebul na wzrost i walory dekoracyjne wybranych odmian tulipanów w uprawie doniczkowej. Rocz. AR w Poznaniu 383, Ogrodnictwo 41, 201-205.
Szlachetka W., 1996. Tulipany pędzone sposobem standardowym na kwiat cięty i doniczkowe. Biul. Stow. Prod. Ozdob. Rośl. Cebul. 4, 37–45.
Szlachetka W., 2000. Rośliny cebulowe, bulwiaste i kłączowe stosowane do pędzenia, w: Uprawa roślin ozdobnych, red. H. Chmiel. PWRiL, Warszawa, 556–586.
Wróblewska W., 2009. The directions of flower bulbs supply and distribution in Poland in the years 1990 and 2004, EJPAU 12(2), http://www.ejpau.media.pl/volume12/issue2/art-06.html.
Downloads
Download data is not yet available.
