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Sima Taheri, Thohirah Lee Abdullah, Nur Ashikin Psyquay Abdullah, and Zaiton Ahmad

); native ornamentals with limited gene pools in a given species ( Maluszynski et al., 1995 ); or plants with long juvenile periods before flowering and seed production ( Predieri, 2001 ). For the past 80 years, mutation induction has been a routine tool for

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Paul M. Lyrene

, (compare Table 4 with Lyrene, 2016 ), but seed set from all crosses was high enough to allow the highbush and V. stamineum gene pools to be combined with little difficulty. Table 4. Results of crosses made in the greenhouse in 2017. Phenotypes of F 1

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D. Michael Jackson, Howard F. Harrison, Robert L. Jarret, and Phillip A. Wadl

geographic collections may show a narrower range of genetic diversity due to inbreeding or other factors ( Elameen et al., 2008 ; Hao et al., 2007 ; Meng et al., 2018 ). Within the USDA, ARS sweetpotato collections, there are multiple gene pools and