INJURIOUS EFFECTS OF HIGH CO2 CONCENTRATIONS ON CUCUMBER, TOMATO, CHRYSANTHEMUM AND GERBERA

ISHS Acta Horticulturae 162: Symposium on CO2 Enrichment

INJURIOUS EFFECTS OF HIGH CO₂ CONCENTRATIONS ON CUCUMBER, TOMATO, CHRYSANTHEMUM AND GERBERA

Author:

N. van Berkel

Abstract:
High CO₂ concentrations can induce injury on leaves of some plants. Three different types of injury are known.

Leaf roll (tomato) and chlorosis/necrosis (chrysanthemum) of the older leaves. It is probably caused by starch excess in the chloroplasts. Decrease of the photosynthetic rate.
Chlorosis, followed by necrosis of the oldest leaves of cucumber, tomato and gerbera.
Chlorosis and necrosis of the top leaflets of just full-grown tomato leaves.

These types of injury may also result from other climatic factors. The possible causes of injury are discussed.

Download Adobe Acrobat Reader (free software to read PDF files)