BREEDING PROGRAM OF ROOTSTOCKS FOR PEACH TREE AT THE RESEARCH STATION FOR FRUIT GROWING CONSTANTA, ROMANIA
A Breeding Program to obtain new rootstocks for peach began thirty three years ago at the Research Station for Fruit Growing Constanta, Romania and consisted of: prospecting native and cultivated tree flora from the area, finding some rootstock selections well adapted to local specific conditions; introduction of the valuable rootstocks as well as the species used world-wide, increasing the hereditary base. This resulted in the establishment of a germplasm collection necessary for the creation of new rootstocks; study of genitors (parental) characters was made in this collection with a view of finding the best genitors; establishing of genitors for different characters; intra- and inter-specific hybridizations, self- and free-pollination. This Program has been carried out according to several objectives: late blooming, late ripening, high and regular yields, easy propagation by seeds, nursery performances, different levels of vigor, graft compatibility with all cultivars, yield precocity and efficiency, size and quality of fruits, adaptability to soils with excess of calcium, resistance to frost, drought, and diseases. Until the present time, breeding works had produced over 5500 hybrids of free pollination and F1, C1, C2, F2 generations. Among 3500 seedlings hybrids obtained by crosspollination 100 were selected in the last time in our Research Station trials as advanced selections. Up to date 5 peach rootstocks have been released and registered: 3 from selection (T16, Tomis 1, Tomis 79) and 2 from intra-specific hybridizations, (Tomis 28 and Tomis 39). There were also other valuable selections which were tested in the nursery field and will be tested in the orchard.
Indreias, A. (2013). BREEDING PROGRAM OF ROOTSTOCKS FOR PEACH TREE AT THE RESEARCH STATION FOR FRUIT GROWING CONSTANTA, ROMANIA. Acta Hortic. 981, 217-222
peach rootstock, breeding, intra-and inter-specific hybrid