Air pollution injury to plants

Chelston W.D. Brathwaite


All over the world today, man is becoming increasingly concerned about the quality of the environment. This concern has expressed itself in the organization of International Conferences on the environment, the passage of anti-pollution legislation, demonstrations and placard waving. Although green plants also are affected by the quality of the environment, they express their concern in less dramatic ways. Air pollution injury to plants have only recently been recognised. In 1943, a new plant disorder known as silver leaf was observed on the leaves of many herbaceous plants in Los Angeles, California. In 1950, it was demonstrated that the condition was associated with air pollution. Since then, research results have shown that in highly industrialised areas, air pollution injury to crop plants may severely reduce their growth and subsequent yield.

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