The present invention relates to methods for modifying an agricultural crop comprising treating the agricultural crop with a composition comprising a xyloglucan endotransglycosylase and (a) a polymeric xyloglucan and a functionalized xyloglucan oligomer comprising a chemical group； (b) a polymeric xyloglucan functionalized with a chemical group and a functionalized xyloglucan oligomer comprising a chemical group； (c) a polymeric xyloglucan functionalized with a chemical group and a xyloglucan ligomer； (d) a polymeric xyloglucan, and a xyloglucan oligomer； (e) a polymeric xyloglucan functionalized with a chemical group； (f) a polymeric xyloglucan； (g) a functionalized xyloglucan oligomer comprising a chemical group； or (h) a xyloglucan oligomer, or (a-h) without a xyloglucan endotransglycosylase, in a medium under conditions leading to a modified agricultural crop possessing an improved property compared to the unmodified agricultural crop. The present invention also relates to a modified agricultural crop obtained by such methods.
