The effect of growth regulators on dry matter and saccharide component content in potatoes

amidon application foliaire calidad contenido de materia seca crop yield dry matter content etefon ethephon foliar application fructosa fructose glucosa glucose paclobutrazol papa plant growth substances pomme de terre potatoes quality rendement des cultures rendimiento de cultivos saccharose solanum tuberosum starch sucrosa sucrose sustancias de crecimiento vegetal tubercule tubers variedades varieties