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Nosiola (or Groppello bianco) is a white Italian wine grape variety that is grown in the Trentino region north of Lake Garda in the Valle dei Laghi.〔Joseph Batianich & David Lynch Vino Italiano: The Regional Wines of Italy" pg 80-81 Clarkson Potter Publishers ISBN 9781400097746〕 Here it is used in varietal ''Denominazione di origine controllata'' (DOC) wines and as a blending component in wines such as ''Sorni Bianco'' from Trento.〔J. Robinson ''Jancis Robinson's Guide to Wine Grapes'' pg 129 Oxford University Press 1996 ISBN 0198600984〕 It is also used to produce a dessert wine in the ''Vin Santo'' style from grapes that have been allowed to dry out prior to fermentation.〔Oz Clarke ''Encyclopedia of Grapes'' pg 164 Harcourt Books 2001 ISBN 0-15-100714-4〕 ==History== Ampelographers believe that the name Nosiola is derived from the Italian word ''nocciola'' (hazelnut) which could be a reference to the characteristic toasted hazelnut aromas that varietal examples of Nosiola exhibit. It could also be a reference to the grape berries themselves since, unlike most white grape varieties, they don't turn a dark, raisin brown when very mature. Another theory is that the name is a corruption of ''ociolet'' which in the local dialect of the Trentino regions means "little eyes" and was associated with the (likely now extinct) 18th-century wine grape Uva dall'Occhio bianca whose name meant "white eye's grape" and may have been related to Nosiola.〔J. Robinson, J. Harding and J. Vouillamoz ''Wine Grapes - A complete guide to 1,368 vine varieties, including their origins and flavours'' pgs 737–738 Allen Lane 2012 ISBN 978-1-846-14446-2〕 Another grape that may be related to Nosiola is the ancient Roman wine grape Raetica that was reportedly the most widely planted white wine grape in northern Italy during Roman times. Ampelographers have long thought that Groppello di Revò (which is grown in the Val di Non region of Trentino) and Nosiola (which is also known as Groppello bianco) were descendants of Raetica but so far there has not been any conclusively historical evidence or DNA analysis to confirm that theory.〔 One grape that DNA analysis has linked to Nosiola is the Swiss wine grape Rèze which is grown in the Valais region. DNA has shown that both Nosiola and Groppello di Revò share a parent-offspring relationship with Rèze and, given that Rèze has been well known and documented nearly five centuries before the other two, it is more likely that Rèze is the parent variety with the other two being offspring.〔 Where Nosiola originated is not yet fully known though the grape's long association with the Trentino region makes that area the most likely source. Another possibility is the Alto Adige region where Nosiola has long been known under the synonym ''Spargelen''.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nosiola」の詳細全文を読む スポンサード リンク
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