Kasvuomaduste erinevused hariliku männi (Pinus sylvestrisL.) järglaskatsetesThe progeny trials of Scots pine founded in Järvselja Training and Experimental Forest District in 1967 and 1968 by E. Pihelgas were analysed to estimate the dependence of progeny growth variables on mother tree or mother stand origin and age. Our progeny data set consists of 4622 DBH and 486 height measurements of the 41- and 42-year-old progeny trials. In 2008 and in 1995 all trees of the progeny trial were callipered and height of nine sample trees was measured on each plot. The analysis was carried out with the SAS/GLM procedure. It was proved that height of inland-originated progeny stands was significantly higher than height of progeny stands originated from maritime regions. Plus-tree progeny stands exceeded single tree and mixture-of-seeds progeny stands in height, diameter, basal area and volume.
Pärilikkuse mõjust hariliku männi (Pinus sylvestrisL.) kasvuomadustele järglaskatsetesThe progeny trials of the Scots pine founded in Järvselja Training and Experimental Forest District in 1966 and 1967 by E. Pihelgas were analysed to estimate the heritability of height and diameter characteristics, and also the dependence of progeny properties on the plus tree and single tree phenotype. The data set consists of 513 height and 3707 breast height diameter measurements of 39-and 40-years-old progenies of 40 mother trees. The analysis was carried out with the SAS package, Release 9.1, mainly with ANOVA tools implemented SAS/MIXED procedure. Heritability h2was calculated from the mother tree and residual variance components assuming a limited number of father trees for each progeny. Using the REML estimation procedures, the heritability of the stem height was found approximately equal to 1 and it was 0.19 for the DBH. Considering the mother tree characteristics, the age was significantly correlated with the progeny height.
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