The effect of different methods of Norway spruce seed extraction on their vitality and predisposition to long-term storage
Vitality of Norway spruce seeds harvested using four methods and their resistance to accelerated ageing test was compared. Seeds were extracted from 18 cone samples collected in winter season 1998/1999 in the Sudety Mountains. The results of investigation showed that seed extraction by drying cones and mechanical seed dewinging did not influence on their vitality, just the opposite, germination ability of seeds manually extracted from fresh cones was 5% lower. High temperature during seed extraction (60 °C) decreased seed resistance to stress condition of accelerated ageing.
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