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Juvenile growth open-pollinated larch families in Polish – France experiments on trials in Poland

Juvenile growth open-pollinated larch families in Polish – France experiments on trials in Poland. Jan Kowalczyk IBL, P19 seminar „ GENETIC VARIABILITY AND ADAPTIVE POTENTIAL OF TEMPERATE AND BOREAL FOREST TREE SPECIES” 23-25 FEBRUARY 2010 , BUCHAREST (ROM A NIA ). Contents :.

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Juvenile growth open-pollinated larch families in Polish – France experiments on trials in Poland

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  1. Juvenile growth open-pollinated larch families in Polish – France experiments on trials in Poland Jan Kowalczyk IBL, P19 seminar „GENETIC VARIABILITY AND ADAPTIVE POTENTIAL OF TEMPERATE AND BOREAL FOREST TREE SPECIES” 23-25 FEBRUARY 2010, BUCHAREST (ROMANIA)

  2. Contents: Jan Kowalczyk • Polish larch experiment 1987 (project background) • Methods • Trials description, mother trees distribition • Statistical methods • Results • Conclusion • Final remarks and discussion

  3. Background Collaboration with INRA in Orleans French interest of Polish larch Common research planning Exchange genetic material and common breeding idea Difficulties: Different forestry priorities Different silvicultural approach Jan Kowalczyk

  4. What is Polish larch? Morphological features Cones Tree form Distribution Growth character Polish European Jan Kowalczyk

  5. Jan Kowalczyk

  6. Larch natural distribution Jan Kowalczyk

  7. Methods Common collection in 1987 in Blizyn region Cons were collected from 157 trees in 4 stands Collected materials were divided between IBL and INRA First part of the stored seed were sown in Sękocin in year 1996. Experimental trails were established in spring 1998, in Central Poland Forest District Kutno. Two years bare root seedling were planted in spacing 2 by 2 meters. Second part of the seed were sown in the same nursery in Sękocin in 1998 y. In spring 2000 y. the second trial was established in forest district Zwierzyniec (Sought-east part of Poland) Jan Kowalczyk

  8. Jan Kowalczyk

  9. 31 122 Jan Kowalczyk

  10. Mother trees description Jan Kowalczyk

  11. Trial in Kutno Year of planting 1998 RDLP - Łódź Area 1,9 ha Forest Dist. Kutno No. Fam. 157 No. trees 4704 Forestry Chrosno Spacing 2 x 2 m Exp. Design single tree plots STP Jan Kowalczyk

  12. Trial in Zwierzyniec Year of planting 2000 RDLP Lublin Area 2,22 ha Forest Dist. Zwierzyniec Seedlings 4372 Families 85 Forestry Nowiny Spacing 2 x 2 m Exp. design STP Jan Kowalczyk

  13. Measurement and observations Jan Kowalczyk

  14. Scoring scale 1 2 3 4 5 Jan Kowalczyk

  15. Problems in young age Jan Kowalczyk

  16. Statistical methods Trait value=  + Bk +Rm + En  - mean Bk- Block k Rm - Family m En - tree n in familly m (error) genotypic family index value 1.5 - DBH 1.5 - DBH increment 1.0 - Stem straightness 1.0 - Branch diameter h – heritability E – economic trait value d - selection differentials Jan Kowalczyk

  17. Kutno Jan Kowalczyk

  18. Kutno - DBH Jan Kowalczyk

  19. Heritability - Kutno Jan Kowalczyk

  20. Zwierzyniec H2 H3 H4 H7 Jan Kowalczyk

  21. Zwierzyniec - DBH Jan Kowalczyk

  22. Heritability - Zwierzyniec Jan Kowalczyk

  23. Kutno - Zwierzyniec Jan Kowalczyk

  24. Index value Jan Kowalczyk

  25. Conclusions Jan Kowalczyk The more reliable evaluation will be possible after 15 and 20 years. Common for all plots evaluation is needed. The best families are: 115 and 26. The worst families on the trails in Kutno and Zwierzyniec are 69 and 66. Exist big genotype environment interaction in this experiment .

  26. Final remarks and discussion Jan Kowalczyk The selected genotypes (families, clones) can be used in plantation forestry in Poland Natural crosses between Japanese, hybrids and Polish larch (also in seed orchard) How to protect valuable „natural” populations?

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