Comparison of the properties of seed orchard and stand seeds

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1 Comparison of the properties of seed orchard and stand seeds Eira-Maija Savonen: seed size, germination Seppo Ruotsalainen: field experiments Continuation: the field experiment part

2 Field tests Experiments are repeated in three years (02-04) 4 test sites (only 2 in the first year)

3 Field tests: technique

4 Field tests: technique

5 Test sites and origin of the material Kannus Stand seed Parkano Jyväskylä Punkaharju South SO North SO Solböle

6 Seed orchard types Seed orchard 190 Metsä-Ihala Seed orchard 124 Suokanta

7 Test results

8 Plant percentage at the end of 1st growing season - all years and test sites r=0.806** Mean plant-% Germination, 14 days Stand seed South SO North SO

9 Plant percentage at the end of 2nd growing season - two years and all test sites r=0.855** Mean plant-% Germination, 14days Stand seeds Seed orchard-s Seed orchard-n

10 Scots pine sowing 02, Punkaharju, development in plant percentage % Years Stands Seed orchard-s Seed orchard-n

11 Scots pine sowing 02, Parkano, development in plant percentage % Years Stands Seed orchard-s Seed orchard-n

12 Scots pine sowing 02, Punkaharju, height growth Height, mm Years Stands Seed orchard-s Seed orchard-n

13 Scots pine sowing 02, Parkano, height growth Height, mm Stands Seed orchard-s Seed orchard-n Years

14 Scots pine sowing 03, plant percentage in 2nd year % All Stands Seed orchard- S Seed orchard- N Punkaharju Solböle Parkano Kannus

15 Scots pine sowing 03, height of 2nd year height, mm All Stands Seed orchard- S Seed orchard- N Solböle Punkaharju Parkano Kannus

16 Scots pine sowing 03, Parkano, development in plant percentage % Scots pine sowing 03, Punkaharju, development in plant percentage 1 2 Years % Stands Seed orchard-s Seed orchard-n 1 2 Years Stands Seed orchard-s Seed orchard-n

17 % Scots pine sowing 02, Parkano, development in plant percentage for individual seed lots Years

18 Preliminary conclusions: - no clear difference between seed orchard and stand seeds in plant percentage - great differences within each seed type in plant percentage (influenced by germination) - seed lots from seed orchards with northern origin and low germination speed can have delayed germination - seed orchard seed (greater) produces greater seedlings

South East of Process Main Building / 1F. North East of Process Main Building / 1F. At 14:05 April 16, 2011. Sample not collected

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