Course of some meteorological factors in vegetation seasons 1976-1995 and their effect on apple-tree yield in the Olsztyn region

摘要

The paper presents the relationship between apple-tree yield and the course of some meteorological factors in the vegetation seasons of the years 1976-1995. The minimum temperatures of May turned out to be the most important factor that limited yielding. The sums of mean daily temperatures of April and May, as well as those of minimum temperatures of May, were slightly below the significance limit.