Meisterprüfung Gärtner Practice Questions - Österreichische Meisterprüfung Für Das Reglementierte Handwerk Der Gärtner (Master Craftsman In Horticulture & Gardening) Exam

A negative DIF (day temperature lower than night temperature) or a morning temperature drop suppresses internode elongation by reducing endogenous gibberellin activity A positive DIF (day temperature higher than night temperature) suppresses internode elongation by maximizing photosynthetic carbohydrate accumulation A negative DIF increases stem elongation by promoting rapid cell division in the apical meristem during the night A zero DIF (equal day and night temperature) halts all vegetative growth by inducing permanent stomatal closure