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DEVELOPMENT OF A HIGH YIELDING POLYCLONAL VARIETY OF SITKA SPRUCE FOR BRITTANY

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1) SELECTION AND PROGENY TESTING OF SUPERIOR INDIVIDUALS, DETERMINATION OF BEST FAMILIES AND THEIR MASS PROPAGATION.

2) ENRICHMENT OF EXISTING GENETIC BASE BY THE INTRODUCTION OF VIGOROUS CALIFORNIA AND OREGON SEED SOURCES. SELECTION OF INDIVIDUALS FROM THESE SEED SOURCES ON THEIR ABILITY TO SET EARLY TERMINAL BUDS.

3) CREATION OF A MULTIPLICATION CENTER TO PROMOTE MASS PROPAGATION AND TO MAINTAIN JUVENILITY OF THE YOUNG ORTETS.

4) IN VITRO CULTIVATION OF THE OLD SELECTED TREES TO REJUVENATE THEM, TO STOCK THE BEST TREES IN A GENE BANK AND TO ATTEMPT TO OBTAIN NEO-FORMATIONS.

5) SCREENING OF THE CLONES IN A LARGE FIELD AREA, IN VARIOUS CLIMATIC CONDITIONS AND ON MANY DIFFERENT SOILS.

6) QUALITY STUDIES BY EARLY TEST OF THE PHYSICAL PARAMETERS SUCH AS MEAN DENSITY, MAXIMUM AND MINIMUM DENSITY.

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DOMAINE DE L'ETANCON
77370 NANGIS
Frankreich

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