The study was conducted in the 2005 - 2008 period in the region of IMSA Troyan. This work presents preliminary results of a study with the plum cultivars Stanley, Hanita, Jojo and Cacanska Lepotica engrafted on the rootstocks Brompton, GF 655-2, SJ A, Wavit, Wangenheim, and P. cerasifera included in a cultivar-rootstock trial under a dense planting design - 147 trees per da. Parameters of initial fruiting of the cultivar-rootstock combinations were determined. The highest yields per tree were obtained from cultivar Jojo grafted on the rootstock GF 655-2, Wavit and P. cerasifera, which attained the earliest and high yields and the rootstocks Wavit and GF 655-2 were distinguished as very suitable to reduce the plum tree size and inducing early beginning of fruiting, which makes them promising for intensive fruit production in mountain conditions.
Possibilities for efficient use of area in a young intensive plum plantation with some new cultivar - rootstock combinations