ISHS Acta Horticulturae 587: International Symposium on Asian Pears, Commemorating the 100th Anniversary of Nijisseiki Pear
NEW BILATERAL CORDON TRAINING OF JAPANESE PEAR 'NIITAKA' FOR COMFORTABLE WORK |
| Authors: | H. Kagami, T. Yasui, M. Isoda |
| Keywords: | Pyrus pyrifolia, hedgerow training, training method, yield, fruit quality, working conditions |
| Abstract:
Japanese pear trees (Pyrus pyrifolia Nakai) cv. Niitaka, trained into three different kinds of hedgerow systems (Straight-line training, canderable training and bilateral cordon training), were compared with tress trained to traditional vase forms in terms of their ease of management, efficiency, yield and quality. The growth of fruit was affected by the number of leaves per fruit, but not by the fruit spacing on the branches. Therefore, in bilateral cordon trained and canderable trained trees, all the pear fruits were set, grown and harvested around the basal areas of the lateral shoots to facilitate ease of management. Even when all flower buds were removed from the spurs and vegetative shoots, adventitious buds sprouted and 90% of the leaves developed compared to untreated trees. Even though 75% of flower buds of the whole tree were disbudded, the yield of fruit did not decrease. These results show that the most efficient training method was straight-line training followed by bilateral cordon training, canderable training and vase form training. The highest yields were achieved with bilateral cordon training (path width: 2.5m) followed by bilateral cordon training (path width: 4.0m), canderable training (path width: 2.5m), vase form training (path width: 6.0m) straight-line training (path width: 2.5m). Sugar content of the fruits from trees in the bilateral cordon training system (path width: 2.5m) and canderable training system (path width: 2.5m) were inferior to fruits from the other systems. Thus, we concluded that the bilateral cordon training (path width: 4.0m) is the best method to facilitate ease of management. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
