Antioxidant and antitranspirant protection of apple foliage against ozone injury

Visible injury to apple foliage from exposure to ozone includes brown stippling on lower leaf surfaces and a light yellow mosaic on upper surfaces. Histologically, chlorophyll is destroyed and palisade and spongy mesophyll cells collapse following disintegration of their protoplasm. Foliar spray app...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1976-03, Vol.15 (3), p.336-341
Main Authors: Elfving, D.C, Gilbert, M.D, Edgerton, L.J, Wilde, M.H, Lisk, D.J
Format: Article
Language:English
Subjects:
Aniline Compounds - pharmacology
Diphenylamine - pharmacology
Fruit
Ozone - antagonists & inhibitors
Ozone - poisoning
plant damage
plant health
Plants - anatomy & histology
Plants - drug effects
Terpenes - pharmacology
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Summary:Visible injury to apple foliage from exposure to ozone includes brown stippling on lower leaf surfaces and a light yellow mosaic on upper surfaces. Histologically, chlorophyll is destroyed and palisade and spongy mesophyll cells collapse following disintegration of their protoplasm. Foliar spray applications of the antioxidant, diphenylamine (DPA) or the antitranspirant, Wilt Pruf offer protection against this visible and histological injury. Superior protection results from application of both agents in combination.
ISSN:0007-4861
1432-0800
DOI:10.1007/bf01812646