D. DOMOZETOV1, M. BOROVINOVA1, I. IVANOVA2, V. TASSEVA1, I. SREDKOV1, K. DOICHEV3 and I. RADOMIRSKA1
1Institute of Agriculture, BG - 2500 Kyustendil, Bulgaria
2National Agricultural Advisory Service - RAAS, BG - 2800 Kyustendil, Bulgaria
3National Agricultural Advisory Service - RAAS, BG - 1000 Sofia, Bulgaria
DOMOZETOV, D., M. BOROVINOVA, I. IVANOVA, V. TASSEVA, I. SREDKOV, K. DOICHEV and I. RADOMIRSKA, 2004. Reproductive manifestations of the apple, cultivated under different technologies. Bulg. J. Agric. Sci., 10: 709-713
Three technologies for apple production with different resources availability were investigated during the period 1996 - 2003, namely: T1 - standard, T2 - integrated and T3 - resources saving. The plantation was from 1 to 8 vegetation, planted on a cinnamonic forest soil with cultivars Prima, Florina and Erwin baur grafted on a clonal rootstock MM 106. The trees were shaped as a free spindle with different number of skeleton branches.
The trees from all cultivars entered in the initial fruit bearing during the third vegetation, and in full bearing period - in the fifth. As the most fertile and with a less tendency to irregular fruiting was cultivar Florina - where the obtained yield during the fruit-bearing period (average from the technologies) was 1884 kg/da, from Prima - 1501 kg/da and Erwin baur - 1240 kg/da.
The average yield from the trees (average from the cultivars) was highest at T3 - 1658 kg/da, followed by this of T2 - 1593 and T1 - 1374 kg/da.