Genetic Differences in the Level of Macroelements in Spruce (Picea abies (L.) Karst.) Needles of Several Clones

1986

S. 195-204

4 Tab., 29 Lit. Ang.

Unselbständiges Werk

200052339

On an evenaged seed orchard of spruce growing in Kornik 36 grafts were selected representing 6 clones, 6 grafts per clone, and two needle samples were collected from each graft. These were analysed for the concentration of nitrogen, phosphorus, potassium, calcium and magnesium. Statistically significant differences were found between clones for calcium and magnesium and between grafts within clones for all the macroelements. The clonal variance component for calcium concentration was higher than the variance component for grafts within clones. For the other macroelements the opposite was true. This is reflected in highest heritability for calcium percent followed by magnesium, nitrogen and potassium. Clonal height differences are negatively correlated with the macroelement concentration (a dilution effect) , however grafts within clones have a positive correlation of height with potassium concentration (absorption ability). Heritabilities for Ca%, Mg% and N% are high.