Abstract
Heritabilities were calculated for several traits in a selected population of 20-year-old Piceaglauca (Moench) Voss. The population had been modified by selection for rapid height growth at ages 12 and 18 years. Heritability estimates were moderate for branch angle and low for stem diameter, branch diameter, and number of branches per whorl. The genetic correlations among the traits indicated a negative relationship between rapid growth and desirable branch characters, although the correlations were generally small. The use of a two-stage selection procedure, selecting initially for rapid growth and subsequently for desirable branching traits, appears feasible in this population.
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