“phytotoxicant”的英文意思_释义_用法

单词

phytotoxicant

释义

phytotoxicant|faɪtəʊˈtɒksɪkənt|
[f. phyto- + toxicant a. and n.]
A substance poisonous or injurious to plants; esp. one present in the air. Also attrib. or as adj.
1959Internat. Jrnl. Air Pollution I. 160 The decreased damage at the higher olefin concentration can be explained by the more rapid consumption of ozone to form the phytotoxicant which then partly decomposes before reaching the plants.1961Ann. Rev. Plant Physiol. XII. 431 The principal phytotoxicants recognized several decades ago were fairly specific, simple molecules, such as ethylene, fluorides, hydrogen sulfide, and sulfur dioxide.1971McGraw-Hill Yearbk. Sci. & Technol. 91/2, O₃ has been recognized as a phytotoxicant for at least 100 years.1977I. M. Campbell Energy & Atmosphere viii. 248 The level of sophistication which has now been attained has resulted in the identification of single phytotoxicant species, together with the development..of computer simulation procedures for photochemical smog formation.

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