Behaviour of three pear cultivars propagated in vitro and self-rooted, on Tatura trellis canopy
2002
Stanica, F. | Dumitrascu, M. | Peticila, A.
The use of self-rooted cultivars propagated in vitro has had a great success in pear in the last decade. The aim of the present work was the study of the behaviour of self-rooted and in vitro propagated pear cultivars using Tatura trellis canopy. Three in vitro propagated pear cultivars were obtained from Vitroplant Cesena, Italy: Williams, Red Williams and Conference; the trees were planted without grafting 5 x 1 m spacings. Between 1993 and 1995, specific formation pruning of Tatura trellis canopy was performed. For tree training, a trellis ws used, to train the branches at an angle. The trunk cross sectional area and other growth parameters as total annual shoot length and shoot number were studied. Data regarding the formation of flowering shoots, fruit production and the productivity index are also presented. The good results show that self rooted pear cultivars can be planted in pear orchards, with all their advantages. The use of two kinds of binding tools increased the work productivity for canopy formation. 46.1% of the incident light reached the leaves during the day and both sides of the canopy were uniformly illuminated. Tatura trellis improves the productivity of pear and offers the possibility to obtain high quality yields.
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