'Sunrise Solo,' an improved, high-quality 'Solo' papaya selection with reddish-orange flesh, is an inbred strain resulting from a cross made between two inbred strains in 1961 at the University of Hawaii, Poamoho Experimental Farm. 'Line 9,' 'Solo' strain having orange-red flesh and good plant characteristics but producing fruit of low sugar content, was crossed with the 'Kariya Solo,' a good standard-type growers strain from Oahu with yellow flesh and high-quality fruit. Self pollination and progeny testing were continued for three successive generations during which the progeny was found to be true breeding in plant and fruit characteristics. The resulting new 'Sunrise Solo' combines the orange-red flesh color and precocious, low-fruiting habit of 'Line 9 Solo,' with excellent quality, high sugar content, and the desirable 'Solo' flavor of 'Kariya Solo.
