Plant Respiration Analyzer Analyses the Effect of Air Pollution on Plant Respiration

September 09, 2021

Atmospheric pollution has become increasingly serious, and the effects of sulfur dioxide, ozone, and hydrogen fluoride on the physiological metabolism of plants have become more and more serious. Photosynthesis and respiration of the most polluted air plants have certain influence. There are few reports on the effects of chlorine on plant metabolic activity. It is generally believed that atmospheric pollutants have affected photosynthetic or respiratory and other metabolic processes before the onset of symptoms of injury, and visible symptoms are generally fully apparent 48 to 72 hours after the end of smoke. Therefore, measuring changes in photosynthetic or respiratory activity of plants can be used as a physiological indicator of the effects of atmospheric pollutants on plants. The plant respiration analyzer is capable of measuring and analyzing the respiration of plants.

Through the analysis of the plant respiration apparatus, it was found that chlorine has a very significant effect on the respiration of plants, and the respiratory intensity of most plants after the smoke has been significantly improved. In general, the sensitivity of sensitive plants is greatly increased. For example, cedar and other plants can be more than doubled in this experiment. Plants with moderate resistance like Ligustrum lucidum, melon seed boxwood, oriental arborvitae, etc. have increased their respiratory intensity after the end of smoke. About 60%; the plant resistance to strong breathing strength only slightly increased. The decrease in respiratory intensity after the coral trees have been smoked may be related to a significant reduction in physiological activity caused by severe leaf injury.

Chlorine effects on plant respiration. Significant changes in respiration can be measured between 4 and 48 hours after the end of the smoke treatment. The full appearance of the lesion usually takes 48 to 72 hours. Since changes in respiratory intensity appear faster and more pronounced than injury symptoms, changes in respiratory intensity can be used as a physiological indicator of the effects of polluted gases on plants.

The respiratory intensity of leaves of different ages of plants was determined by the plant respiration tester. The respiration intensity of young leaves was usually high, the functional leaves were lower than young leaves, and the old leaves were the lowest. However, after the chlorine gas has been treated with fumigation, the greatest change in respiratory intensity is usually the old leaf, suggesting that the respiration of old leaves is more sensitive to chlorine.

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