红松实生种子园建园效果分析

本文对红松实生种子园建园效果进行了分析.结果表明:用3 a生容器苗做定植材料效果好,结实量较裸根苗提高59.33%;陡坡立地条件母树生长最好,缓坡次之,平地最差;建园的232个家系中树高、胸径均为正选择的家系数为89个;树高、胸径遗传增益均高于5%、10%、15%的家系数分别为41个、12个、6个.优树树高单株和家系遗传力均大于胸径遗传力,且树高和胸径单株遗传力均小于家系遗传力;露水河、八家子和敦化三地种源树高单株和家系遗传力均大于胸径遗传力,且树高和胸径单株遗传力均小于家系遗传力.露水河种源树高、胸径单株和家系遗传力均高于三地种源,树高、胸径单株遗传力分别高出20.0%和20.6%,树高、胸径家系遗传力分别高出10.64%和11.63%.

Effect analysis of establishing seedling seed orchard of Pinus koraiensis

The trial study on establishing seedling seed orchard of Pinus koraiensis shows following results: The best effect was obtained by planting 3 yr-old seedlings in the field,the seed-bearing percentage had increased 59.33% compared with bare root seedling.Seed tree grew very well at steep slope,second at gentle slope and flat ground at the last.There are 89 families were selected based on their superior characteristics in height and diameter in established 232seedling seed orchard families.Among of them,there are 41,12 and 6 families have genetic gains over 5%,10% and 15%,respectively.Height heritability both of plus individual and the family are all greater than diameter heritability;the individual heritability in height or diameter is all lower than the family.The tree height heritability both of individual and family in 3 provenances of Lushuihe,Bajiazi and Dunhua are all greater than the diameter heritability,and then the individual heritability in height or diameter is all lower than the family. It concluded that Lushuihe provenance are the best compared with other sites from height and diameter heritability no matter individual and family,which has made an increases of 20% and 20.6% to plus individual and 10.64% and 10.63% to family.