Continuity of water transfer in soil-plant system: the case of fruit trees [thermal measurement]

agua arbre fruitier eau fruit trees malus pumila measurement mesure mouvement de l'eau dans le sol movimiento del agua en el suelo plant soil relations plant water relations racine relaciones planta agua relaciones planta suelo relation plante eau relation plante sol roots sap savia soil soil water movement sol stems suelo tallo tige water