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Duncan (mango)
The Duncan mango is a named mango cultivar that originated in south Florida and was later patented.
== History ==
The original tree was grown from a seed planted in 1956 by David Sturrock of West Palm Beach, Florida. Sturrock had written in 1969 that it had been a cross of Edward and Pico, but a 2005 pedigree analysis indicated that Nam Doc Mai was the likely parent. This explanation is challenging because Nam Doc Mai was not introduced into Florida until the 1970s, and that Duncan is monoembryonic while Nam Doc Mai is polyembryonic. The tree first fruited in 1960 and the new variety was named after Ralph V. Duncan of Boynton Beach, Florida, who was a flood control district supervisor that had provided maps for a book written by Sturrock. 'Duncan' was later was patented by Sturrock. The variety was recognized for its excellent eating quality and handling characteristics, as well as its production, and later became a nursery stock tree in Florida.
'Duncan' trees are planted in the collections of the USDA's germplasm repository in Miami, Florida,〔http://www.ars-grin.gov/cgi-bin/npgs/acc/display.pl?1719297 USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN). (Database ) National Germplasm Resources Laboratory, Beltsville, Maryland.〕 the University of Florida's Tropical Research and Education Center in Homestead, Florida,〔http://trec.ifas.ufl.edu/crane/pdfs/TREC-Fruit-Collections.pdf Page 3, #23〕 and the Miami-Dade Fruit and Spice Park,〔http://fruitandspicepark.org/friends/index.php?option=com_content&task=view&id=43&Itemid=29〕 also in Homestead.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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