[Effect of Some Chemical Materials on Productivity Washington Navel Orange Trees and Fruit's Ability of Storge]

acide ascorbique acido ascorbico almacenamiento ascorbic acid calcium chloride calcium nitrate calidad chlorure de calcium cloruro calcico naranja dulce nitrate de calcium nitrato de calcio orange douce preharvest treatment productividad productivity quality siria stockage storage sweet oranges syria syrie tratamiento precosecha urea uree