Growth and fruit production of asian pear trees grown on Y-, T-, and vase-training systems

摘要: This study was carried out to evaluate the effects of training systems on growth and fruit production ‘Niitaka’ pear (Pyrus pyrifolia L.) trees in first 8 years South Korea. The included Y-trellis (YT), T-trellis (TT), vase-pergola with either two (VP I) or three main branches II). Tree spacing for YT, TT, VP I, II were 6.5 m between tree rows, 3.0, 6.0, trees, respectively. TT had lower height, canopy area, number new shoots, average length trunk cross sectional area as compared those other year 3 8. slow fill allotted space from I comparatively rapid development canopy, high cumulative yield efficiency per tree, large size, well low operation hours orchard management. Fruit quality parameters, such shape, soluble solids content, firmness, titratable acidity, not consistently affected by system 5