Abstract
‘Andes-1’ resulted from a cross made in 1998 at Santiago, Chile, between the Californian clingstone peach ‘Andross’ (University of California, Davis, 1964) and the selection A1-5A-85 from the Australis breeding program (a cooperative peach breeding program between the University of Chile and Andes Nursery Association). The main objective of Australis for peaches and nectarines is the development of high-quality-yielding earlyor late-maturing cultivars, which could be stored for at least 35 d in cold storage keeping a high flavor quality. Genotypes are intended to be grown in the central zone of Chile and other areas with a Mediterranean climate with medium chill requirements accumulation from 1 May to 15 Aug., 1000 chilling units according to the Utah model (Richardson et al., 1974). ‘Andes-1’ was selected after 4 years of field evaluation in the progeny plot and later tested on small plots of 15 trees budded on ‘Nemaguard’ rootstock. The experimental plots were established in Paine (long. 33 48#14.85$ S, lat. 70 40#6.54$ W) and El Tambo (long. 34 28#21.77$ S, lat. 70 59#21.22$ W), two representative environments of the Chilean stone fruit production area. Data were collected from the experimental plots for additional 5 years.
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