Study on tree structure and yield components of different types of high density jujube orchards
2013
Zhang, Q. | Wu, C.Y. | Lin, M.J. | Wang, S.D.
The tree structures and yield components of two cultivation modes of Chinese jujube, ultra-high density orchard (1 × 3 m) and grass jujube orchards (0.3 × 0.6 × 1.5 m), were studied. The results showed that, the difference in tree height, trunk diameter as well as numbers of secondary and bearing branches were not significant between two cultivation modes, but the fruit number of bearing branches and the weight of single fruit were significantly different. In the same cultivation mode, crown height, secondary branch diameter, secondary branch internodes number and bearing branch number between cultivar 'Huizao' and 'Junzao' were not significantly different. Compared to 'Junzao', the trunk diameter and bearing branch fruit set number of 'Huizao' were significantly lower and bearing branch internode number of 'Huizao' was significantly higher. The fruit was biggest in the base part of of bearing branch in 'Huizao' and in the middle of bearing branch in 'Junzao'. Fruit weight was biggest at the top of tree in the grass jujube orchard.
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