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reading%204-3 (dragged) 39 - Most of the current cultivars...

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Most of the current cultivars are based on selection for high oil as well as relatively small seed size, high productivity, and disease resistance. ‘Fuerte’, the most important present-day cultivar, was selected in 1911, from seedlings by the Rodiles family near Atlixco, Mexcio. Breeding efforts are hampered by long juvenility, sometimes as long as 15 years. ‘Haas’, originating as a chance seedling in California is increasing in importance. 6. Papaya . Carica , Eurphobiacia, a genus with about 40 species is indigenous to tropical America (Purseglove 1968). Papaya (Carica papaya ), derived from natural hybridization involving C. peltata , is a frost-tender, non-woody plant reaching a height of 8 m. It is widely grown as a dooryard plant throughout the tropics for the melon-sized fruit usually consumed for breakfast. The proteolytic enzyme papain has been exploited as a meat tenderizer and has been used for some surgical procedures.
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