Physiological, morphological and molecular biological studies of dormancy development in Norway spruce and Scots pine

bourgeon buds chitinase chlorophylle chlorophylls clorofilas dormance dormancy dormancy breaking durcissement electroforesis electrophoresis endurecimiento fluorescence fluorescencia frost gas exchange gel hardening helada intercambio de gases methode methods microscopia microscopie microscopy noruega norway picea abies pinus sylvestris plantule quitinasa salida de la latencia seedlings yema (planta)