| Influence research on infiltration irrigation by annular capillary wicking to growing development and fruit quality of grape in arid region |
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| DOI：10.7606/j.issn.1000-7601.2018.03.01 |
| Key Words: infiltration irrigation by annular capillary wicking water stress grape particle diameter 100-particles weight soluble solid proline content |
| Author Name | Affiliation | | SUN Yi-bo | Department of Water Resources and Environment，School of geography science and planning, Sun Yat-sen University，Guangzhou, Guangdong 510275，China；Guangdong University Key Laboratory of Water Cycle and Security in South China，Sun Yat-sen University，Guangzhou, Guangdong 510275，China | | ZHANG Qing-tao | Department of Water Resources and Environment，School of geography science and planning, Sun Yat-sen University，Guangzhou, Guangdong 510275，China；Guangdong University Key Laboratory of Water Cycle and Security in South China，Sun Yat-sen University，Guangzhou, Guangdong 510275，China | | WANG Yao | Department of Water Resources and Environment，School of geography science and planning, Sun Yat-sen University，Guangzhou, Guangdong 510275，China；Guangdong University Key Laboratory of Water Cycle and Security in South China，Sun Yat-sen University，Guangzhou, Guangdong 510275，China | | ZHOU Yu-lan | Department of Water Resources and Environment，School of geography science and planning, Sun Yat-sen University，Guangzhou, Guangdong 510275，China；Guangdong University Key Laboratory of Water Cycle and Security in South China，Sun Yat-sen University，Guangzhou, Guangdong 510275，China | | QU Zhe | Department of Water Resources and Environment，School of geography science and planning, Sun Yat-sen University，Guangzhou, Guangdong 510275，China；Guangdong University Key Laboratory of Water Cycle and Security in South China，Sun Yat-sen University，Guangzhou, Guangdong 510275，China | | WANG Zhen-ping | The Engineering Reaearch Center of Grape and Wine of Ministry Education, College of Agriculture, Ning xia University, Yinchuan, Ningxia 750021, China |
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| Abstract: |
| Developing water-saving irrigation was extremely urgent, due to the water shortage problem was seriously threatened the grape production in arid region. The infiltration irrigation by annular capillary wicking was the water saving infiltration irrigation method by using the principle of capillary phenomenon to add an annular capillary wicking based on the existing capillary straight wicking, and through the infiltration mode by capillary wicking supplied water to crop root zone. The experiment was carried out in vineyard named as Vitis vinifera L. cv. red globe, the irrigation methods were infiltration irrigation by annular capillary wicking and the conventional furrow irrigation (CK). The infiltration irrigation times was divided into once and twice, each time filled a bucket of water (100L). The furrow irrigation time was twice. The buried depths for the annular capillary wicking was divided into two types as 30cm and 0cm on soil surface.The experimental results showed that: The lateral shoot growth was the maximum by the treatment 0*1 (soil surface infiltration irrigation by annular capillary wicking, one time irrigation) and existed a significant difference with the conventional furrow irrigation (P<0.05). Under the same irrigation amount, the lateral shoot growth by the 0*1 treatment was higher than the 30*1 treatment (infiltration irrigation by annular capillary wicking buried 30cm depth, one time irrigation). The leaf midrib growth was the best by the 0*2 treatment (soil surface infiltration irrigation, two times irrigation). The treatments 0*1 and 0*2 compared with other treatments, the fruit berry diameter growth was the maximum, and the speed of berry transverse diameter for 0*1 treatment was increased 55.6% than the CK. This explained the infiltration irrigation by the annular capillary wicking was effectively promoted the grape fruit berry growth. The growth of grape berry diameter by the soil surface infiltration irrigation was significantly better than the irrigation by buried 30cm depth under the same irrigation amount. The 100 berry weight of 30*2 treatment (infiltration irrigation by annular capillary wicking buried 30cm depth, two times irrigation) was increased 30% than CK with the same irrigation amount. The proline content by the conventional furrow irrigation was the highest, while the proline content of the 30*2 treatment was the lowest. Under the same irrigation amount, the proline content by the surface infiltration irrigation was higher than the infiltration irrigation buried 30cm depth, it explained that infiltration irrigation by annular capillary wicking buried 30cm depth can be effectively reduced the plant water stress. The soluble solids of 30*2 and 30*1 treatments were higher than other treatments, and the sugar-acid ratio of 30*1 treatment was the highest. Under the same irrigation amount, the sugar-acid ratio of the infiltration irrigation by buried 30cm depth was higher than the soil surface infiltration irrigation. In general, from the point of view of final yield and fruit quality, the treatment 30*2 was the best combination for the grape color-changed to maturity stage in arid region. |
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