Published in Scientific Papers. Series B, Horticulture, Volume LIX
Written by Valeria PETRE, Gheorghe PETRE, Adrian ASĂNICĂ
Research conducted at the Research and Development Station for Fruit Growing Voineşti in the period 2012 - 2014,took into account the increase of genetic variability through the use of hybrid combinations that involved commercially valuable genotypes or selected elite in order to obtain desired characteristics: genetic resistance to disease, low vigor,constant production, firm pulp and good storage capacity. In apple breeding for genetic resistance at RDSG Voineşt iwere used as genitors, apple elites and recently created cultivars with genetic resistance to disease, which have embedded complex resistance genes: Iris, Inedit, Goldrush, Ariwa, Topaz, Golden Lasa or genotypes created in Voineşti: H1/22, H5/20, H2/75, H1/27, H1/7, H4/37 etc. Apple seedlings hybrids obtained in jiffy 7 in greenhouse weretransplanted in the fortification field, after a previous mass selection, depending on objectives. After the selection offorms derived from hybrid seedlings planted in the fortification field, it resulted 40.3% to 96.2% seedlings resistant toscab, the following combinations: Inedit x Topaz (83.3%), Topaz x H1/27 (93.1%), Inedit x Ariwa (93.7%), Goldrush xH1/3 (96.2%) etc. Creating apple varieties with genetic resistance to disease is an ongoing process that must be doneby annually hybrid combinations using high economic value genitors which enclose complex genetic resistance genes.
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apple hybrid seedlings
