Preliminary results of the study of between-species hybrid 70/3 (P.spinosa x P.cerasifera) with characteristic peculiarities of P.domestica species
2001
Minev, I. (Institute of Highland Animal Husbandry and Agriculture, BG-5600 Troyan (Bulgaria))
Between-species hybrid 70/3 has a comparatively early flowering ussually at the beginning of April.Flowers are considerably bugger than those of blackthorm with an average diameter of 21.2 mm.Fruits are dark blue with purple shade.Their chemical compositionis follows:total sugar content-8.85 mg %, acids-1.34 mg % and tannin content-0.381 mg %. The stone weight is 0.81 g and is difficult to detach.Trees have moderate growth capacity.The morphological and agrobiological characteristics of the between-species hybrid 70/3 are similar to the representatives of P. domestica. It is also interesting from immunobiological point of view as a primary form in selection of cultivars with improved resistance to fungal diseases, tolerant to plum pox.
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