translate English to French: 30–50% relative humidity (RH)), the decapitated disbudded stem, bearing only a single pair of leaves, promoted the early growth of the root buds but strongly inhibited their subsequent elongation and emergence as shoots.
30–50%), la tige décapitée et ébourgeonnée, ne portant qu'une seule paire de feuille, favorisa la croissance hâtive des bourgeons racinaires, mais furent inhibés fortement leur allongement subséquent et puis la formation de tige.