Differential ozone susceptibility of Centennial Russet and White Rose potato as demonstrated by fumigation and antioxidant treatments
Because quantitative field estimates of potato (Solanum tuberosum L.) yield losses attributable to ozone (O/sub 3/) air pollution damage in California need to be assessed, the antioxidant compound N-(-2-(2-oxo-1-imidazo-lidinyl)ethyl)-N'-phenylurea (EDU or DPX-4891) was evaluated for suitabilit...
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Veröffentlicht in: | Am. Potato J.; (United States) 1983-02, Vol.60 (2), p.127-139 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Because quantitative field estimates of potato (Solanum tuberosum L.) yield losses attributable to ozone (O/sub 3/) air pollution damage in California need to be assessed, the antioxidant compound N-(-2-(2-oxo-1-imidazo-lidinyl)ethyl)-N'-phenylurea (EDU or DPX-4891) was evaluated for suitability in estimating these yield losses and in differentiating O/sub 3/-susceptible from O/sub 3/-resistant cultivars. Differential susceptibility of two cultivars, 'Centennial Russet' (O/sub 3/-sensitive) and 'White Rose' (O/sub 3/-resistant), to O/sub 3/ was confirmed in greenhouse experiments. In the absence of O/sub 3/ under greenhouse conditions, EDU had no observable effect on shoot dry weight, tuber number, or tuber yield of either cultivar, suggesting that EDU does not materially affect plant growth in the absence of O/sub 3/ at the treatment levels used and under the conditions herein. In field experiments, EDU applied at the highest rate, 17.8 kg/ha, increased marketable and total tuber yields of Centennial Russet by 208 and 188 q/ha, respectively, and increased specific gravity by 0.013. White Rose was not affected by EDU. |
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ISSN: | 0003-0589 1874-9380 |
DOI: | 10.1007/BF02853801 |