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Roma tomato or Roma is a plum tomato popularly used both for canning and producing tomato paste because of their slender and firm nature. Commonly found in supermarkets in some countries, Roma tomatoes are also known as Italian tomatoes or Italian plum tomatoes.〔''The Cook's Thesaurus'' (Tomato ) (accessed 17 August 2010)〕 Roma tomatoes are grown in the United States, Mexico, Australia, and Great Britain.〔''ROMA TOMATO'' () (accessed 6 May 2015)〕 ==Types== The "Roma VF" variant is most common in seed catalogs as of 2007. It was developed by the USDA's Agricultural Research Service (ARS) scientists in Beltsville, Maryland〔''Chronica Horticulture'' Vol 50, No. 3, 2010〕 in the 1950s as a fusarium wilt-resistant cultivar. While Roma is an open-pollinated variety rather than a hybrid, it has been steadily improved to the point where most Roma tomato vines are verticillium and fusarium wilt resistant (thus the VF in the name). Most commercial plum tomatoes sold in markets in the Western Hemisphere are Romas or related types. Smaller plum tomatoes about the size of cherry tomatoes are sometimes sold as "baby Romas". A smaller relative known as "Windowbox Roma" is sold as a tomato suitable for window gardens and hanging containers. 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「Roma tomato」の詳細全文を読む スポンサード リンク
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