[The effect of site and duration of a low temperature period on the morphogenesis of five plant species: Dendranthema grandiflorum hybrid, Fuchsia hybrid, Petunia hybrid, Verbena hybrid, Pelargonium zonale hybrid [DIF, student's study]]

alargamiento del tallo allongement de la tige choix de la date crecimiento croissance darkness dendranthema morifolium entre noeud floraison flowering fotoperiodismo fuchsia growth internodes internodios inversion thermique light luz obscuridad pelargonium zonale petunia photoperiodicity plantas de macetas plante en pot pot plants stem elongation temperatura temperature temperature inversion timing verbenaceae