reading%204-3 (dragged) 39

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

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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. The tree is commonly dioecious although there are types that are considered polygamo-
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/18/2011 for the course HIST 302 taught by Professor Jensic during the Summer '10 term at Purdue University-West Lafayette.

Ask a homework question - tutors are online