| Effects of microfiber wicking infiltration irrigation on grape growth and fruit quality of Vitis vinifera L.cv. Moldova in arid region |
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| DOI：10.7606/j.issn.1000-7601.2021.06.09 |
| Key Words: microfiber wicking infiltration irrigation water stress Vitis vinifera L.cv. Moldova fruit quality water use efficiency |
| Author Name | Affiliation | | CHEN Tuo | School of Civil Engineering, Sun Yat\|sen University, Zhuhai, Guangdong 519082, China
Guangdong University Key Laboratory of Water Cycle and Security in South China, Sun Yat\|sen University, Guangzhou, Guangdong 510275, China | | ZHANG Qingtao | School of Civil Engineering, Sun Yat\|sen University, Zhuhai, Guangdong 519082, China
Guangdong University Key Laboratory of Water Cycle and Security in South China, Sun Yat\|sen University, Guangzhou, Guangdong 510275, China | | CEHN Yu | School of Civil Engineering, Sun Yat\|sen University, Zhuhai, Guangdong 519082, China
Guangdong University Key Laboratory of Water Cycle and Security in South China, Sun Yat\|sen University, Guangzhou, Guangdong 510275, China | | WANG Zhenping | Center of Grape and Wine Education Engineering Research, College of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China |
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| Abstract: |
| As a water\|saving irrigation method, microfiber wicking infiltration irrigation (MWII) transfers water from wicking capillary to the root zone of plants based on capillary phenomenon. This experiment was carried out in a vineyard planted Vitis vinifera L.cv. Moldova. The irrigation methods were surface annular capillary irrigation (A*0), annular capillary irrigation at a depth of 10 cm (A*10),and conventional furrow irrigation (CK). Every month, 30 L water was irrigated for each plant. The results showed that the soil water content was more stable and the leaf water potential was higher, meaning MWII reduced the water stress of grape with the same amount of irrigation water.The lateral shoot growth for A*10 and A*0 was 92% and 57% higher than CK. The berry weight for A*10 was 8.1% higher than CK and yield for A*10 was 46.8% higher than CK, which indicated that MWII promoted the growth of grape. The titratable acid and soluble solids for A*0 and A*10 treatments were basically consistent with CK. The proline content of A*0 and A*10 was less than CK, which showed that MWII alleviated the water stress of grape. The anthocyanins for A*0 and A*10 were 5.2% and 14.3%, respecitively, higher than CK,indicating that A*10 water supply was uniform and continuous, which was conducive to accumulation of anthocyanins. The soluble protein content of A*0 and A*10 at maturity was highter than CK, and the soluble protein content for A*10 was 29% higher than CK. MWII promoted the synthesis of soluble protein. Therefore, MWII improved water use efficiency and grape quality to a certain extent. |
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