Über die Ursachen und Kriterien der Immissionsresistenz bei Fichte, Picea abies (L.) Karst.

摘要

AbstractCauses and critcria of resistance to air pollution in Norway spruce. II. Reflexive resistance. The different reactions of stomata of resistant and “normal” spruce grafts were investigated. Resistant grafts were shown to have a more sensitive reaction by measuring water potentials and by analyzing S content in SO2fumigated needles or F contents in grafts exposed to polluted air. Other tcsts involving gas permeability of stomata, clecrrical conductivity of needle cxtracts and watcr content of SO2fumigated needles were less effect