Comportamiento de los cultivares de peral 'Conference' y 'Doyenné du comice' sobre diferentes patrones de membrillero y OHxF

Summary Behaviour of the ‘Conference’ and ‘Doyenne du comice’ pear cultivars in a rootstock trial with five OHxF and two quince selections A pear rootstock trial was undertaken with ‘Conference’ and ‘Doyenne du Comice’ scions onto five OHxF and two quince selections, as well as on a seedling rootstock for ‘Conference’. After nine crops (1995 ‐ 2003) of ‘Conference’, the highest cumulative yield was obtained on OHxF 69, OHxF 40 and OHxF 87, and the lowest on Adam’s 232. Among the OHxF clones, OHxF 282 and OHxF 333 produced the lowest yield, whereas seedling and BA 29 were intermediate. The vigour on seedlings was significantly larger than on any other rootstock. All OHxF clones produced trees of similar vigor, intermediate between seedling and quince. The productivity (cumulative yield/TCSA) was higher on both quinces, intermediate on OHxF 69, OHxF 87 and OHxF 40, lower on OHxF 333 and OHxF 282, and the lowest on the seedlings. The average fruit size was better on both quinces than in any other