Study on the half-sib family selection for the superior tree of scots pine

Abstract

Investigation and researches are carried out in MaoershanForest Farm attached to Northeast Forestry University in 1988. Comparedwith the contrast, 29 superior families and 21 inferior families areselected from 112 families of half-sib and open pollination of seven-year old scots pine stands by using multicharacters correlations analysis and variance analysis (ANOVA) as well as principal component index (PCI) selection. This index selection which collects multicharacters information has more advantage than monocharacter selection. It is very important to select fine families for buildingthe first generation seed orchard and changing from trial stand toseeding orchard.