摘要：The aim of this paper was to observ the differences between tulips cultivated in a solarium with the possibility of heating and outside on arable land. The biological material analyzed was represented by 2 cultivars of tulips: 'Irene Parrot' and 'Winter Parrot'. The study was conducted in Purcăreni, Argeș county. Observations, measurements and determinations were performed, the analyzed characters being the following: the height of the floral stem, the number of branches, the lenght and width of the leaves, the number of leaves, the lenhgt of the floral cup, the diameter of the floral cup. The low light conditions during the solar culture period greatly influence the increase in height of the studied cultivars, as well as the size and number of leaves, wich are lower than in the field culture. Regarding the characteristics of the floral cup, the negative influence of the low light conditios during the solar culture period is observed.
