Influence of abscisic acid and trans cinnamic acid on senescence of detached Tropaeolum majus leaves in relation to stomatal movements

aba acide organique aging chlorophylle chlorophylls clorofilas enredaderas ornamentales envejecimiento estoma feuille gartenbau hojas leaves organic acids ornamental climbers pflanzenphysiologie plante ornementale grimpante seneszenz stomata stomate tropaeolum majus vieillissement