Photochemical Oxidant Injury on Potatoes of Several Cultivars (2)
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概要
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Effecst of photochemical oxidants on growth and yields of potatoes were investigated using charcoal-filtered and non-filtered air chambers from April through May of 1984, 1985 and 1987. The degrees of foliar oxidant injury were severer in the cultivar Waseshiro than in the cultivar Danshakuimo. The obtained result was closely similar to that observed at the field survey described in the first report. The shoot weights and tuber yields at the final harvest were greater in filtered air chamber than in non-filtered chamber at both cultivars. There was a linaer relationship different in each cultivar between reduction of potato yield and mean concentration of photochemical oxidants.<BR>Although Danshakuimo was more resistant to photochemical oxidants for the occurrence of foliar injury, tuber yields of the cultivar were reduced to the larger extent than Waseshiro when exposed to higher values of oxidants above threshold concentration. The threshold concentration of oxidants was estimated to be about 0.04 ppm in average value during growing period.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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