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Abstract
‘Cullinan’ and ‘Havis’ peaches were released by the Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland on June 3, 1977. ‘Cullinan’ (Fig. 1) is an attractive, high-quality cultivar ripening after ‘Red-haven’ season, with the highest resistance to bacterial spot (Xanthomonas pruni (E. F. Smith) Dows) recorded by the screening method used at Beltsville. ‘Havis’ (Fig. 2) is a highly-blushed, high quality cultivar ripening just before ‘Rio Oso Gem’.
Abstract
Prepotency of 5 seed and 9 pollen parents of peach and nectarine, Prunus persica (L.) Batsch, was estimated from analysis of detailed data on 1,131 seedlings. Selections were compared as parents from percentages of transmission of 22 commercially important characteristics in multiple cross progenies. Three composite measures of combining ability delineated two of the selections as superior parents. One parent gave selections worthy of propagation at the rate of 1 per 33 seedlings, while poorer parents required as many as 752 seedlings to produce one selection.
Abstract
‘Sentry’ peach (Prunus persica (L.) Batsch) was released August, 1980, because of its productiveness, large fruit size for its early season of maturity, attractive exterior and interior color, and resistance to bacterial spot disease.