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The aim of this research has been to analyse the effect of a cultivation system on the content of minerals in carrot roots. Roots of two carrot cultivars (Koral and Bolero) grown in organic plantations and plantations maintained according to integrated agriculture guidelines were chosen for the study. The thermal and moisture conditions differentiated the content of macro- and microelements more than...
To optimize the protocol, the shoot tips of Chrysanthemum × grandiflorum (Ramat.) Kitam. radiomutants have been cryopreserved using the encapsulationdehydration technique, following different approaches. In the experiment the influence of abscisic acid – ABA (0; 10; 20 and 30 μM), sucrose concentration (0.09; 0.25 and 0.5 M) and temperature (5ºC or 22ºC) during preculture were tested. Furthermore...
In mutation breeding of chrysanthemum the regeneration in vitro of adventitious shoots from ligulate florets can lead to the separation of chimera components and, as a result, to producing a new original cultivar. The success of that method considerably depends on the result being the number of the shoots formed. The more is produced, the greater the chances for an effective separation of chimera...
In order to find a more efficient source of somaclones we performed a regeneration of adventitious shoots from two explant types, leaves and internodes, in eight chrysanthemum cultivars representing three groups consisted of original cultivars and their radiomutants. After the in vitro regeneration and growth, plants were transferred to the glasshouse and the phenotypes at anthesis were observed....
Many chrysanthemum mutants are chimeras built from tissues of a varied genetic composition. Regeneration in vitro of somatic embryos from the whole mutated ligulate florets or only from their small mutated fragments can lead to the separation of chimera components and, as a result, producing a new original cultivar. There was determined the effect of growth regulators (2,4-D; KIN or BAP) and explant...
Chrysanthemum mutants can be chimeras. The regeneration in vitro of adventitious shoots from ligulate florets can lead to the separation of chimera components, resulting in producing a new cultivar. There was determined the effect of various factors on the number and length of shoots regenerating in vitro from ligulate florets of Chrysanthemum × grandiflorum (Ramat.) Kitam. ‘Cool Time’. The ligulate...
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...
Induced mutagenesis allows to obtain in relatively short time new cultivars of chrysanthemum differing in single characteristic traits such as the colour or shape and size of inflorescence, which determines their decorative values. The traditional breeding methods as crossing, selection and techniques of genetic transformation face limitations in this species. The object of investigation were three...
Two groups of chrysanthemum (Dendranthema grandiflora Tzvelev) representing the five cultivars were analysed to define their content of pigments in the inflorescence with the spectrophotometric method. It was observed that respective cultivars obtained as a result of the ionising radiation differed in their quality and quantity of flavonoids and carotenoids in the inflorescence as compared with original...
Badano przydatność 30 odmian chryzantemy wielkokwiatowej (Dendranthema grandiflora Tzvelev) do kształtowania pokroju typowego dla grupy Sombrero. Sterowaną uprawę roślin prowadzono w dwóch terminach wiosennym i letnim. Zbliżony do typu Sombrero pokrój roślin uzyskano u odmian ‘Eleonora Lilac’, ‘Kodiak’, ‘Kodiak Yellow’, ‘Miral’, ‘Mirage’ oraz ‘Spider Yellow’.
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