Abstrakt
Ajania pacifica has been gaining popularity as a pot plant. It is closely related to the chrysanthemum, and may become an interesting alternative for it, the more that the cultivation of both species can be carried out simultaneously. The aim of this study was to assess the growth and flowering of ajania as a result of pinching and the day length of pinched plants. The present research involved the use of Ajania pacifica, ‘Silver and Gold’ and ‘Bea’ ‘Benetti’ and ‘Bengo’ (of Bellania group). The first cultivation was made in the long-day glasshouse. Having been planted into pots, the plants of each cultivar were divided into groups: non-pinched and pinched once, and the last group: further divided into: allocated to immediate cultivation exposed to short day and those which, before the second stage of cultivation – plant darkening for the period of two weeks, were grown further under long-day conditions. Not all the cultivars reacted in the same way to pinching.
In ‘Bengo’ the pinched plants formed buds and started flowering at a similar date as the non-pinched ones, in ‘Benetti’ and ‘Bea’ the delay was inconsiderable and in ‘Silver and Gold’ the buds appeared 5 to 12 days later. The plants growing longer under long-day conditions were higher, wider, with longer and wider corymbs, more inflorescences and their life was longer.
Bibliografia
Adekenov S.M., Kulyjasov A.T., Raldugin V.A., Bagryanskaya I. Yu., Gatilov Yu. V., Shakiov M.M., 1998. Ajanolide A, a new germacranolide from Ajania fruticulosa. Russ. Chem. Bull., 47(1), 169–172.
Beniwal B.S., Ahlawat V.P., Rakesh S., 2003. Studies on the effect of spacing and pinching on growth and flower production of chrysanthemum cv. Flirt. Haryana J. Hort. Sci. 32 (3/4), 228–229.
Cockshull K.E., 1976. Flower and leaf initiation by Chrysanthemum morifolium Ramat. in long days. J. Hort. Sci. 51, 441–450.
Djurdjevac D., Molnar I., Tokarska M., 2000. The effect of different lengths of day and different temperature values on the development of morphological properties of certain chrysanthemum cultivars. EJPAU. Horticulture. 3 (2),#04, www.ejpau.media.pl
Fukai S., Nagira T., Goi M., 2000. Characteristics of F1 progenies between Chrysanthemum and some Dendranthema species. Acta Hortic. 541, 373–378.
Hao Li, Jun Cai Meng, Christopher H. K. Cheng, Tatsuo Higa, Junichi Tanaka, and Ren Xiang Tan., 1999. New Guaianolides and Xanthine Oxidase Inhibitory Flavonols from Ajania fruticulosa. J. Nat. Prod. 62(7), 1053–1055.
Jerzy M., Borkowska J., 2002. Rytmika wzrostu i kwitnienia chryzantemy wielkokwiatowej (Dendranthema grandiflora Tzvelev) w całorocznej uprawie doniczkowej. Zesz. Probl. Post. Nauk Roln. 491, 111–123.
Jerzy M., 2003. Wpływ przemiennego fotoperiodu na kwitnienie gałązkowych odmian chryzantem uprawianych pod osłonami. Acta Sci. Pol. Hortorum Cultus 2(1), 47–54.
Machin B., 1997. Pot chrysanthemum production. Grower Guide, 3–74.
Meng J.C., Hu Y.F., Chen J.H., Tan R.X., 2001. Antifungal highly oxygenated guaianolides and other constituents from Ajania fruticulosa. Phytochemistry 58, 1141–1145.
Rakesh S., Singhrot R.S., Beniwal B.S., 2003. Effect of GA3 and pinching on the growth and yield of chrysanthemum. Haryana J. Hort. Sci. 32 (1/2), 61–63.
Roh M.S., Ikeda H., 2003. Genetic diversity of Dendranthema pacificum (Nakai) Kitam. native to Japan. Acta Hortic. 620, 239–244.
Strojny Z., 1985. Sterowana uprawa złocieni doniczkowych w Polsce. I. Wpływ długości okresu dnia długiego i terminu uszczykiwania na jakość złocieni. Prace Inst. Sad. i Kwiac., Seria B, 10, 91–104.
Zakrzewski P., Jerzy M., 2008. Wpływ okresu dni długich na kwitnienie doniczkowych odmian chryzantem z grupy Yahou w nieogrzewanym tunelu foliowym. Zesz. Probl. Post. Nauk Roln. 525, 503–510.
Zalewska M., 1986/87. Spring flowering of chrysanthemum grown without reduction of day-light period. Part II. Cultivars in standard and spray growing. Prace Inst. Sad. i Kwiac., Seria B, 11, 73–78.
Zalewska M., Antkowiak M., 2009. Effect of the photoperiod on growth and flowering of Ajania pacifica (Nakai) Bremer et Humphries in the glasshouse. Wyd. Uczelniane UTP w Bydgoszczy 2009. Understanding the requirements for development of agricultural production and of rural areas in the Kuyavian-Pomeranian Province as a result of scientific research, 403–411.
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