'MIKADO' AND 'DRILLING' (TRIPLET) - TWO NOVEL TRAINING SYSTEMS FOR SUSTAINABLE HIGH QUALITY APPLE AND PEAR PRODUCTION
'Mikado' trees have four and 'drilling' trees three main branch elements. Therefore, vegetative growth is partitioned into four and three elements of equal strength, respectively. These elements are arranged in a V-like shape which results in excellent light interception, high fruit quality and efficient use of orchard space. There are 6000 branch elements per ha using a planting density of 1500 'mikado' and 2000 'drilling' trees/ha. These pruning and training systems aim at a rapid establishment of the tree volume and the formation of short lateral shoots. 'Mikado' allows for high yields in the third year already. Little experience is available concerning the 'drilling' system as evaluation trials are limited to only two crop years. An important advantage of these novel systems is the lower investment cost for establishing orchards compared with the currently used spindle single-row system. The 'mikado' and 'drilling' training systems are interesting not only for apples but particularly for pears because of the quince rootstock vigor. We assume that the good light utilization of fruiting wood of the slender elements of 'mikado' pear trees supports flower bud formation and the development of good fruit quality.
Widmer, A. and Krebs, C. (1997). 'MIKADO' AND 'DRILLING' (TRIPLET) - TWO NOVEL TRAINING SYSTEMS FOR SUSTAINABLE HIGH QUALITY APPLE AND PEAR PRODUCTION. Acta Hortic. 451, 519-528
Malus domestica, Pyrus communis, planting density, spindle, Güttinger-V-system, training and pruning, fruit quality