EFFECT OF FOUR OH×F ROOTSTOCKS ON PERFORMANCE OF 'CONFERENCE' PEAR IN NON-IRRIGATED ORCHARDS
Growth and yield characteristics of Conference pear (Pyrus communis) grafted on four pear Old Home × Farmingdale clonal rootstock selections OH×F69, OH×F87, OH×F230, OH×F333 and standard quince rootstock BA29 (Cydonia oblonga) were evaluated from 1999-2013. The orchard was established in the North East Bohemia region of the Czech Republic, in the spring 1996. The trees were planted in medium loamy soil in a non-irrigated orchard. Planting distance was 5×2.1 m and the trees were trained to a central leader. We measured flowering intensity, yield, trunk cross sectional area (TCSA), yield efficiency, average fruit weight and suckering. There was no significant difference in tree size but the trees on OH×F69 and OH×F230 were the most vigorous. The highest cumulative yield was with OH×F69 (349 kg per tree) followed by OH×F87 (335 kg per tree) and BA29 (329 kg per tree). The highest yield efficiency was with OH×F87 followed by BA29 and OH×F69, and lower was on OH×F333 and OH×F230. BA29 had the most suckers (12.2 suckers per tree during 1999-2013), while the other rootstocks had negligible numbers of suckers. There were no significant differences in fruit weight among rootstocks, but the highest average fruit weight was observed on BA29 and OH×F69. We concluded that if the conditions require the use of pear rootstocks for some reason, OH×F69 and OH×F87 can substitute BA29 without significant negative influence on productivity and management of less intensive production systems.
Laňar, L., Kosina, J., Mészáros, M. and Náměstek, J. (2015). EFFECT OF FOUR OH×F ROOTSTOCKS ON PERFORMANCE OF 'CONFERENCE' PEAR IN NON-IRRIGATED ORCHARDS. Acta Hortic. 1094, 135-137
Pyrus communis L., central leader, yield, BA29, suckering