Study on the red-leaf hybrid no. 9-205 as a rootstock for peach and nectarine cultivars
2017
Zhivondov Argir | Vasilev Dimitar | Malchev Svetoslav | Nacheva Lilyana | Gercheva Petya
The aim of the present study was to establish the growth characteristics of the red-leaf peach hybrid No. 9-205, grown in a nursery, targeting its submission in future for recognition as a new vegetative rootstock for peach and nectarine cultivars. The traditional seedling rootstock 'Elberta' and the vegetative one GF-677 were included in the study. Hybrid No. 9-205 was selected from a population obtained at the Fruit- Growing Institute in Plovdiv by open pollination of Rutgers Red Leaf seedling rootstock for peach, used in the past. It is characterized by high drought resistance and good resistance to diseases and pests. It is easily propagated under in vitro conditions and shows weaker growth compared to GF-677 rootstock. 18 cultivar/rootstock combinations were studied, including two cultivars of each peach type: for fresh consumption, for processing and of the nectarine type. 'Laskava' cultivar for fresh consumption, the processing cultivar 'Spasena' and the cultivar 'Gergana', which is of the nectarine type, are newly established in result of the implementation of the breeding programme at the Fruit-Growing Institute - Plovdiv. They were officially recognized in the period 2009- 2012. The percentage of survival and of grafted bud shooting is high enough and meets the requirements of the production practices in nurseries. The planting material of the vegetative rootstock No. 9-205 is uniform in plant height and stem width and it fully complies with the quality standards.
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