The Collaborative International Dictionary of English v.0.48:

Silviculture \Sil"vi*cul`ture\, n. [Cf. F. silviculture.]
   See Sylviculture.
   [1913 Webster]

WordNet (r) 3.0 (2006):

silviculture
    n 1: the branch of forestry dealing with the development and
         care of forests

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "silviculture":
   Christmas tree farming, afforestation, arboretum, arboriculture,
   boondocks, bush, bushveld, chase, climax forest, cloud forest,
   dendrology, forest, forest land, forest management,
   forest preserve, forestation, forestry, fringing forest,
   gallery forest, greenwood, hanger, index forest, jungle, jungles,
   logging, lumbering, national forest, palmetto barrens, park,
   park forest, pine barrens, primeval forest, protection forest,
   rain forest, reforestation, scrub, scrubland, selection forest,
   shrubland, sprout forest, stand of timber, state forest, timber,
   timberland, tree farming, tree veld, virgin forest, wildwood, wood,
   woodcraft, woodland, woods