Long-term preservation of chestnut pollen on catkin after vacuum-drying

anatomia anatomie anatomy androceo androecium antera anthere anthers arbre pour bois de construction castanea crops cultivos dicotiledoneas dicotyledons drying economic plants fagaceae fagales fisiologia fleur flores flowers fonction physiologique fruit crops frutales gametes gametos inflorescence inflorescences inflorescencias nut crops physiological functions physiologie physiology plant anatomy plantas plantas de nueces plante plante de culture plante pour construction plants polen pollen preservation procesamiento processing reproduction secado structural crops timber trees traitement