Syngenta shares rose 1.8 percent to 277.20 Swiss francs by 0852 GMT, lifted by the prospect of more cash for shareholders and healthier agricultural markets and ahead of a weaker DJ Stoxx European chemicals sector. Syngenta said its full-year net profit edged down 1 percent to $1.37 billion, hit by lower food prices, but just ahead of forecasts. The stock trades at 13 times forecast 2011 earnings, a discount to Monsanto but at a premium to other European chemicals companies.