Leś. Pr. Bad., 2007, 4: 47-65.

Przyczyny obniżonej żywotności niektórych partii nasion sosny zwyczajnej (Pinus sylvestris L.), pozyskanych w Polsce zimą 2005/2006
Reasons for reduced viability of some Scots pine (Pinus sylvestris L.) seeds lots harvested in Poland in winter season 2005/2006

Marek Bodył, Olesia Witowska, Andrzej Załęski
Instytut Badawczy Leśnictwa, Zakład Genetyki i Fizjologii Drzew Leśnych,
Sękocin Stary, 05-090 Raszyn, e-mail: M.Bodyl@ibles.waw.pl

Abstract. 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.

Key words: Scots pine, production and quality of seeds.