Apple Improvement for Early and Mid-Early Cultivar Production
2012
Hajnajari, Hassan | Alizadeh, assadollah | Pirmoradian, Mohsen | Mokhtarian, Ali | Hasani, D | Hosein Ava, S | Damyar, S
The national apple breeding program was initiated in 2003 to produce new early midearly cultivars. To obtain information on qualitative and yield capacity from the cultivars we had to do begin before vast researches of cultivar evaluation consisting in 108 cultivars in Karaj, 22 cultivars in Azarbayjanwest and 15 cultivars in Isfahan. So the parents were selected for the major apple production zones in 4 different provinces of Alborz (Karaj), Azarbayjanwest, Isfahan and Khorasan Razavi. The cross combinations were based on the use of local cultivars and high yielding imported cultivars. In Alborz province were produced 126.000 seeds from at least 55 compatible full and half-sib cross combinations, in 2004. Other 8 half-sib (2005) and 6 full-sib (2008) cross combinations were resulted in 77 seeds. The new hybrid orchard, 5 year old (20012), was established using 690 promising progenies selected in a screening program by means of morphological markers within the 7000 progenies. In Azarbayjanwest were produced 4400, 3800 and 2600 full-sib hybrid seeds from 6 predefined cross combinations, from 2006 to 2009. 50 superior progenies were selected and grafted on MM106. In Isfahan province, the crosses were began in 2006 and continued for 5 successive years, till 2010.The breeder produced from 6 full-sib and 3 half-sib crosses, yearly 3734, 9020, 2312, 9072 and 11566 hybrid seeds, totally 35704n from which 850 Offspring were grown after germination. In Khorasan Razavi there were produced 13 Off spring
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