Abstract
Abstract Forty-five full-sib families of Scotch pine (Pinus sylvestris L.) from an incomplete factorial mating design were planted in northeastern Kansas in 1981. The trees were evaluated in 1986 for survival, height growth, crown width, taper (crown width/height), number of stems per tree, the presence or absence of stem crooks, and the number of full faces. Needle length and needle color were measured at a consistent location on each tree in December 1987. Individual tree heritabilities were high; 49.68% for taper, 61.64% for crown width, 66.83% for height, and 71.46% for needle length. Estimated genetic gains showed that rapid improvements through selection are possible for these four traits. Combined selection consistently had the highest percentage gain and is the recommended selection procedure. Genetic correlation indicated that taper is negatively correlated with height (-0.651). Therefore, because of the commercial importance of form, selection for rapid height growth should not be the emphasis in future breeding efforts. West. J. Appl. For. 7(3):82-86.
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