Evaluation of some characteristics conditioning potato productivity [growth analysis, leaf area]

agronomic characters anatomia anatomie anatomy biological development canopy couvert crecimiento croissance crops cubierta vegetal cultivar cultivars cultivos economic plants fisiologia fonction physiologique growth hortalizas (plantas) papa physiological functions physiologie physiology plant anatomy plantas plantas feculentas plante plante de culture plante racine plants pomme de terre potatoes productividad productivity profitability rendement rendimiento rentabilidad root crops root vegetables starch crops vegetable crops yields