| Effects of trainning systems on growth and fruit quality of Italian Riesling grape |
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| DOI：10.7606/j.issn.1000-7601.2018.05.12 |
| Key Words: ‘Italian Riesling’ grape training system photosynthesis grape growth berry quality |
| Author Name | Affiliation | | HAO Yan | Institute of Fruit and Floriculture Research Gansu Academy of Agricultural Sciences, Lanzhou ,Gansu730070, China | | ZHANG Kun | Institute of Fruit and Floriculture Research Gansu Academy of Agricultural Sciences, Lanzhou ,Gansu730070, China | | HE Ying-Xia | Institute of Fruit and Floriculture Research Gansu Academy of Agricultural Sciences, Lanzhou ,Gansu730070, China | | MA Qi-long | Hexi comprehensive development Bureau of Bailong river forestry administration Bureau, Gaotai , Gansu734300,China | | BAI Yao-dong | Hexi comprehensive development Bureau of Bailong river forestry administration Bureau, Gaotai , Gansu734300,China | | YANG Rui | Institute of Fruit and Floriculture Research Gansu Academy of Agricultural Sciences, Lanzhou ,Gansu730070, China |
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| Abstract: |
| Riesling grape tree training system test was carried out in Hexi Corridor Area, the horizontal trunk many stem V form (CK) was transformed into single column single stem horizontal trunk vertical plastic (DLL) and single column single stem horizontal trunk Y plastic (DYL) training systems. By comparing the photosynthetic characteristics, growth and fruit quality of the tree, the results showed that compared with CK, both DLL and DYL trees increased the photosynthetic performance of leaves, and the chlorophyll a content was increased significantly, but only the DLL tree leaf chlorophyll a/b value was significantly higher than that of control; Under natural conditions, the diurnal photosynthesis of different tree training systems showed obvious midday depression, the midday depression of DLL tree is lighter, and faster recovery was observed after 16∶00. The third node roughness of DLL and DYL increased by 51.71% and 22.58% respectively compared with the control. DLL and DYL increased fruit soluble solids content, reducing sugar content, total phenol content and sugar acid ratio, and reduce the total acid content, soluble solids content were increased by 20.5% and 11.8%, the ratio of sugar and acid was increased by 35.09% and 13.15% by DLL and DYL, respectively. DLL increased reducing sugar 15.15%, compared with the CK, and the total acid content of DLL was reduced by 14.99% compared to the control. The results show that in Hexi Corridor Area, both DLL and DYL training systems could improve the quality of fruit, DLL tree is better because of the conduciving to mechanized production. |
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