Testing the winter hardiness of selected chrysanthemum cultivars of Multiflora type

Abstract

Augustinová L., Doležalová J., Matiska P., Wimmerová Z., Kodetová T. Over the course of [2007][2008][2009][2010][2011][2012][2013] 19 selected cultivars of Chrysanthemum × grandiflorum were tested. Testing was conducted during two seasons under field conditions and on potted plants in the freezing chamber at temperatures -8, -10 and -12°C. It was found that frost hardiness of chrysanthemums of Multiflora type can be reliably determined at a temperature intervention of -8°C. The field trials and tests in freezing chamber revealed that cv. Vlasta did not overwinter. In field trials, the most winter hardy cultivars were Zina, Berta, Mína, Dorota, Estela, Tereza and clone 912, which are possible to grow as short-lived perennials. Cvs Marika and Tereza showed the best frost resistance in the freezing chamber and the best survival results after simulating spring frost.

Cross Breeding New Cultivars of Early-flowering Multiflora Chrysanthemum Based on Mathematical Analysis

“…Because of its high ornamental value and wide range of applications, multiflora chrysanthemum (Chrysanthemum ·morifolium Ramat.) plays an important role in the global flower market (Anderson, 2006;Augustinova et al, 2016;Teixeira da Silva et al, 2013). However, most multiflora chrysanthemum cultivars are short-day plants, which initiate flowering when the daylength is shorter than 12 h (Cockshull, 1985).…”