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Effects of simulated acid rain on garlic in spraying copper hydroxide solution  

Chung, Bong-Jin (Agricultural Technology Research Institute, DongBu Hannong Chemical Co.)
Lee, Seong-Dal (Agricultural Technology Research Institute, DongBu Hannong Chemical Co.)
Myung, Eul-Jae (Agricultural Technology Research Institute, DongBu Hannong Chemical Co.)
Kim, Yong-Tae (Agricultural Technology Research Institute, DongBu Hannong Chemical Co.)
Kim, Seung-Ho (Agricultural Technology Research Institute, DongBu Hannong Chemical Co.)
Publication Information
The Korean Journal of Pesticide Science / v.6, no.3, 2002 , pp. 175-182 More about this Journal
Abstract
This experiment was conducted to investigate the effects of acid rain in spraying copper hydroxide 77% wettable power(WP) on leaf surface morphology and crop injury of the garlic(Allium sativum L.). Leaf chlorosis, hooked leaves, wrinkled epidermal cells and increased stomata open of garlic were induced by foliar application of simulated acid rain(SAR). It was become to be severe in application of copper hydroxide solution after application of SAR, but those yield of garlic was not significantly different from the untreated control. Leaf chlorosis was sharply increased above 100 ppm of copper ions. Amount of solved copper ions in copper hydroxide solution was remarkably increased below pH 5.5 and the residue in garlic leaves was significantly increased by application of copper hydroxide solution after spraying SAR compared with application of copper hydroxide solution only. When calcium carbonate was applied together with copper hydroxide leaf chlorosis was less than copper hydroxide only.
Keywords
Simulated acid rain(SAR); copper hydroxide; garlic; chlorosis; calcium carbonate;
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