engleski

Growth and yield of plum trees "Felsina", "Top" and "Elena" grafted on "GF 655/2"

An investigation on the growth and cropping of plum trees, which were cultivated on heavy soil, was conducted for seven years after planting (1997-2003. The experiment included plum cultivars Felsina, Top and Elena grafted on rootstocks GF-655/2, and planted at three densities (3.8 x 1.8, 3.8 x 2.2 and 3.8 x 2.6 m). After 7 seasons, growth of the trees, as indicated by trunk cooss-section area (TCSA), of "Felsina" were the least vigorous while "Top" were the most vigorous. "Felsina" did not yield as expected and was very sensitive to plum pox virus. "Top" and "Elena" were precocious and produced high yields. "Top" showed slight sensitivity, whereas "Elena" was high tolerant to plum pox virus. In our growing condition, among cultivars in trial, "Elena" is the most promising for modern, intensive plum growing because was precocious, productive and gave fruits of good quality.

plum; rootstocks; yield

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