The influence of benzyladenine on the flowering of Liatris spicata L. 'Alba' cultivated for cut flowers in an unheated plastic tunnel and in the field

Abstract

The study focused on the infl uence of benzyladenine (BA) on the fl owering of Liatris spicata L.'Alba' cultivated for two years in an unheated plastic tunnel and in the fi eld. Benzyladenine at a concentration of 0, 100, 200, 400 mg dm -3 was applied on the leaf twice during both years of the experiment. It was noted that cultivation of Liatris spicata L.'Alba' in an unheated plastic tunnel leads to the growth of longer infl orescence stems with a bigger fresh weight and a larger number of primary shoots. However, in comparison with control plants, it decreases the yield of infl orescence stems in the fi rst and second year of the plants' fl owering. It is benefi cial to apply benzyladenine at a concentration of 400 mg dm -3 on the leaves of Liatris spicata L. 'Alba' cultivated in an unheated plastic tunnel, because this treatment increases the number and fresh weight of infl orescence stems as well as the number of primary shoots in the fi rst and second year of the plants' fl owering. It is also justifi ed to apply benzyladenine at a concentration of 400 mg dm -3 on Liatris spicata L. 'Alba' cultivated in the fi eld, as it leads to a greater number and fresh weight of infl orescence stems in the fi rst and second year of fl owering.

THE EFFECT OF SILICON ON MORPHOLOGICAL TRAITS AND MECHANICAL PROPERTIES OF Polygonatum multiflorum (L.) All. ‘VARIEGATUM’ CUT SHOOTS

“…In case of Campanula medium even four times higher yield was observed [Janowska 2008]. However, cultivation of some perennials under foil cover might lead to lower yield of inflorescence stems [Pogroszewska and Sadkowska 2008].…”

“…2). Higher fresh weight characterized also inflorescence stems of Campanula medium [Janowska 2008], Liatris spicata [Pogroszewska and Sadkowska 2008] and Allium sphaerocephalon ] cultivated in an unheated foil tunnels, in comparison to plants cultivated in field. Pogroszewska, E., Szot, P., Rubinowska, K., Konopińska-Mamej, A., Świstowska, A., Zdybel, A., Parzymies, M., Durlak, W. (2018).…”

“…Garden perennials might be a valuable source of additives to bouquets, and are more and more often produced in glasshouses or foil tunnels for the purpose of cut flowers or cut greenery [Marcinkowski 2013]. The cultivation conditions in a foil tunnel allow to obtain floricultural material of a better quality, in comparison to that obtained in an open field [Puczel and Waźbińska 2003, Pogroszewska and Sadkowska 2008, Laskowska et al 2010. Improving the quality of ornamental plants is possible with the use of growth stimulators, such as Actisil preparation, which contains 0.6% of active silicon in a form of orthosilicic acid [Datnoff et al 2001, Hwang et al 2005, Startek et al 2006, Bąbelewski 2008, Kamenidou et al 2008, Bayat et al 2013, Whitted-Haag et al 2014.…”

Flowering and nutritional status of Gladiolus hybridus L. 'Black Velvet' following gibberellin treatment

“…According to the research conducted by Ngamau (2001), an increase in the flower yield is also possible to obtain in Zantedeschia aethiopica by application of a mixture of BA+GA 3 . Pogroszewska and Sadkowska (2008b) report that benzyladenine in Liatris spicata ' Alba' , foliage-applied at a concentration of 400 mg/dm 3 in plants grown in an unheated plastic tunnel and in the soil, increased the number and fresh weight of inflorescence shoots. Similarly, in Campanula persicifolia ' Alba' , benzyladenine at the same concentration increases the number of 1 storder lateral shoots (Pogroszewska, Sadkowska 2008a).…”