Some considerations on the frost behaviour and the flower organogenesis of four local populations of plum cultivars from Buzău county

Abstract

Four local populations of Prunus domestica from Buzau -Pătârlagele city were analysed to evaluate the resistance to frost as well as the organogenesis process. To evaluate the frost resistance of the flower buds two moments were chosen -late February and first decade of April. In the first determination, more than 50% of the analysed buds showed different kinds of damage on flower components, while at the second determination most of the buds remaining on the branch were viable.Theevaluation of the flower organogenesis process carried out at the end of February revealed differences inthe stage of carpel development, while the rest of the floral organs were formed in all four populations.