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Articles containing the keyword 'fenotyyppi'

Category : Article

article id 4869, category Article
Ole Oskarsson, P. M. A. Tigerstedt. (1972). Metsänjalostuksen mahdollisuudet II. Silva Fennica vol. 6 no. 3 article id 4869. https://doi.org/10.14214/sf.a14672
English title: The possibilities in forest tree breeding II. Selection differences and genetic gains in selected seed stands of Scots pine.
Original keywords: mänty; metsänjalostus; tilavuuskasvu; valintahyöty; siemenkeräysmetsät; fenotyyppi; kuutiokasvu
English keywords: Pinus sylvestris; Scots pine; volume growth; genetic gain; forest tree breeding; seed stands; phenotype
Abstract | View details | Full text in PDF | Author Info

The aim of this study was to estimate the genetic gain of volume growth in Scots pine (Pinus sylvestris L.) selected seed stands. To obtain highest possible accuracy, the estimations are based on a large statistical material comprising 197 separate seed stands. It is concluded that the genetic gain of volume growth ranges between 7.4–15.0%. Unwanted pollen contaminations may, however, in the worst case halve this genetic gain.

The PDF includes a summary in English.

  • Oskarsson, E-mail: oo@mm.unknown (email)
  • Tigerstedt, E-mail: pt@mm.unknown
article id 4856, category Article
Pekka Rautiainen. (1971). Ympäristö- ja perintötekijöiden vaikutus männyn ilmiasuun Pohjois-Karjalan piirimetsälautakunnan siemenviljelyksessä Tohmajärvellä. Silva Fennica vol. 5 no. 4 article id 4856. https://doi.org/10.14214/sf.a14658
English title: The effect of environmental and genetical factors on the phenotype of Scots pine in a seed orchard in North Karelia.
Original keywords: mänty; oksikkuus; Suomi; periytyvyys; pituuskasvu; fenotyppi; heritabiliteetti; siemenviljelmä; Tohmajärvi; oksakulma
English keywords: Pinus sylvestris; Scots pine; height growth; heritability; branchiness; fenotyyppi; seed orchard; angle of branching
Abstract | View details | Full text in PDF | Author Info

The study material included 600 Scots pine (Pinus sylvestris L.) grafts from the Tohmajärvi seed orchard in Eastern Finland. Their broad sense heritability for the height growth was 0.92, for the number of branches 0.87 and for the angle of branching 0.84. Grafts from Central Finland had cones more often than the southern ones, the frequencies being 26.3% and 11.2%. It seems that dominance plays a significant role in the genetical variation of this seed orchard and that height growth is probably more rewarding breeding characteristic than quality, the difference being small, however.

The PDF includes a summary in English.

  • Rautiainen, E-mail: pr@mm.unknown (email)

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