Е.Ф. Марковская, М.И. Сысоева, Е.Г. Шерудило.
Особенности подготовки рассады декоративных цветочных растений для озеленения городов севера
// Труды КарНЦ РАН. No 2. Сер. Экспериментальная биология. 2010. C. 32-40
E.F. Markovskaya, M.I. Sysoeva, E.G. Sherudilo. Hints for preparing seedlings of flowering ornamental plants for urban landscaping in the north // Transactions of Karelian Research Centre of Russian Academy of Science. No 2. Experimental biology. 2010. Pp. 32-40
Key words: Petunia x hybrida, Nemesia, Tagetes patula L., short-term temperature drops, resistance, biomass, development, flowering
The response of some ornamental plants to daily variations of the temperature was studied, and potential expediency of short-term exposure of the seedlings to low temperature to promote further growth of the plants after bedding them outdoor was assessed. The method of daily short-term exposure to low temperature (DROP) was found not only to have thermomorphogenetic effect, but also to intensify lateral branching (nemesia, petunia), enhance flowering (marigold), increase the number of flowers per plant (petunia, marigold) and overall flower production over the growing season (nemesia), and significantly raise the plants' cold resistance (nemesia, petunia, marigold). Faster growth, intensified flowering and higher flower production coupled with higher resistance to unfavourable temperatures make such seedlings more suited to growing in regions where the conditions during the growing season are variable