Effects of ozone on grain quality of wheat grown in open-top chambers: three years of experimentation.
Field trials with winter wheat (Triticum aestivum L.) grown in open-top chambers and exposed to either ambient filtered (F) or unfiltered (NF) air were carried out for 3 years in northern Italy. The experiments were performed at two places, a rural and an urban site in the Po Plain. The data obtained show no significant difference in protein, starch and glucose contents between the treatments; nevertheless, a tendency towards an increase in glucose and a decrease in starch contents was observed in the F chambers compared with NF. In addition, potassium levels were lower in F than in NF treatment, while calcium were higher. Ozone levels observed in the Po Valley are not sufficiently high to cause significant differences in quality parameters of winter wheat.
Anguissola Scotti
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Institute of Agricultural and Environmental Chemistry, Faculty of Agriculture, Università Cattolica del Sacro Cuore, Piacenza, Italy.
Silva
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Botteschi
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