The Collaborative International Dictionary of English v.0.48:

Viniculture \Vin"i*cul`ture\, n. [L. vinum wine + cultura
   culture.]
   The cultivation of the vine, esp. for making wine;
   viticulture.
   [1913 Webster]

WordNet (r) 3.0 (2006):

viniculture
    n 1: the cultivation of grapes and grape vines; grape growing
         [syn: viticulture, viniculture]