Introduction of New Promising Apple Genotypes: A Study of Quality Attributes of Apple in Crosses between Iranian Early Ripening and Exotic Late Ripening Apple Cultivars
2016
Sofla, H Sheikh | Zamani, Z. | Talaei, A. R. | Fatahi, M. R. | Nazari, S Aliyoun | Farokhzad, A. R. | Gharghani, A. | Asgarzadeh, M.
Apple breeding is usually done to produce higher quality apples. We crossed two late ripening high quality apple cultivars (i.e., Golden Smoothie and Red Spur) as maternal parents with two Iranian domestic early ripening apple cultivars (i.e., Golab-e Kohanz and Shafi Abadi) as pollen parents in 2005 to breed new early ripening apple cultivars. We then measured qualitative and quantitative traits of 360 off spring during 2010 and 2011. Results of recorded traits on the 5th and 6th year of growth of the progeny showed that during two evaluation years, flowering and fruit ripening time, titrable acidity, SSC/acid ratio, and fruit weight had the highest coefficients of phenotypic variations. Progenies were classified in three groups: early, mid, and late ripening. Some of the selected progeny were better than their early ripening parental cultivars being earlier in the ripening, with larger fruit size and better texture and flavor. Genotypes A31, A32, I5, I23, and I57 were in the early ripening category, B11 and A34 were in the middle, and B77 and E21 were in the late ripening categories. These characteristics were considered to present an improvement.
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