Reasons for reduced viability of some Scots pine (Pinus sylvestris L.) seeds lots harvested in Poland in winter season 2005/2006
In climatic conditions of Poland, Scots pine seeds are characterized in general with very high viability, defined as germination capacity and energy (over 91%). Considerable decrease of viability was observed in seeds collected in many Scots pine stands in winter season 2005/2006. It is suggested that the low germinability of these seeds resulted from unfavourable climatic conditions during prolonged cones storage before seeds extraction.
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