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Mikkelsen, B. L.; Jørgensen, R. B.; Lyngkjær, M. F.. |
Barley (Hordeum vulgare) was grown in different climatic environments with elevated CO2 (700 vs 385 ppm), O3 (60/90 vs 20 ppb) and temperature (24/19 vs 19/12°C day/night) as single factors and in combinations, to evaluate the impact of these climatic factors on photosynthesis and susceptibility to powdery mildew and spot blotch disease. No significant increase in net CO2 assimilation rate was observed in barley grown under elevated CO2 at ambient temperature. However, this rate was positively stimulated under elevated temperature together with a slightly higher potential quantum efficiency of PSII, both at ambient and elevated CO2, suggesting that photosynthesis was not limited by CO2 at ambient temperature. When growing under elevated temperature or O3,... |
Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
Ano: 2014 |
URL: http://orgprints.org/27866/1/ppa12272.pdf |
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