| Effect research of water deficit in different growth stage on wine grape yield and quality |
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| DOI：10.7606/j.issn.1000-7601.2016.03.12 |
| Key Words: water deficit wine grape yield quality typical correlation analysis |
| Author Name | Affiliation | | LIU Jing-xia | College of Engineering Sciences, Gansu Agricultural University, Lanzhou 730070, China | | ZHANG Rui | College of Engineering Sciences, Gansu Agricultural University, Lanzhou 730070, China | | CHENG Zi-yong | College of Engineering Sciences, Gansu Agricultural University, Lanzhou 730070, China | | LI Min | College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China | | CHEN Na-na | College of Engineering Sciences, Gansu Agricultural University, Lanzhou 730070, China | | MA Qi-mei | College of Engineering Sciences, Gansu Agricultural University, Lanzhou 730070, China | | DAI Wen-yuan | College of Engineering Sciences, Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: |
| In order to explore the influence of water dificit to water use efficiency (WUE), yield and quality of wine grape under the trickle irrigation, typical correlation between quality and yield components, carried out the experiment of water control trickle irrigation in different growth stage. The results showed that: The yield would be decreased about 60% by mild water deficit in berry expansion stage, WUE would be reduced 38%, the fruit soluble solids content would be reduced 7.0%, and was no useful to the natural decrease of the acid content of grape in late stage, and the negative effect was maximum to wine grape. The mild water deficit in the coloring and mature stage, the total sugar content would be increased 22.4% and the acid content would be decreased 9.3%. Through the canonical correlation analysis obtained that: It has showed a positive correlation between the grape numbers of single cluster with the soluble solids content and anthocyanin content, while has showed a negative correlation between the grape numbers of single cluster with the tannin content. |
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