| 引用本文: | 冯泉清,高阳,李云峰,等.水盐胁迫对南疆棉花生长发育及产量品质的影响[J].灌溉排水学报,2022,(10):-. |
| Feng Quanqing,GAO Yang,LI Yunfeng,et al.水盐胁迫对南疆棉花生长发育及产量品质的影响[J].灌溉排水学报,2022,(10):-. |
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| 摘要: |
| 【目的】探究南疆膜下滴灌棉田棉花对水盐胁迫的响应,进一步明确水分和盐分对棉花的作用机制。【方法】在新疆阿拉尔兵团第一师灌溉试验站开展大田试验,试验设置2个水分处理(分别为W1：22.5 mm,W2：45 mm)和3个盐分处理(分别为S1：0.2 %,S2：0.4 %,S3：0.6 %),共6个处理。【结果】在水盐胁迫条件下,水分对棉花产量的形成起到了主导作用,以S1W2处理的棉花籽棉产量最高,为7502.85 kg/hm2；水分及盐分对棉花的生长指标、地上部干物质积累量均有极显著影响,棉花吐絮期干物质积累量受水盐胁迫的影响最大,水分胁迫与盐分胁迫分别使棉花干物质量降低了52.39 %和48.89 %【结论】水分及盐分对棉花生长指标及地上部干物质积累量有着极显著影响,灌水量在棉花产量构成中起着主导作用,盐分虽然对各处理棉花干物质积累量有不同程度的抑制作用,但却能显著提高棉花收获指数,因此在无法保证灌水量的重盐碱地地区可以采用W1灌水量,轻中度盐碱地不建议降低灌水量。 |
| 关键词: 棉花;南疆;膜下滴灌;水盐胁迫;产量;品质 |
| DOI： |
| 分类号:S562 |
| 基金项目:现代农业棉花产业技术体系建设专项（CARS-15-13），国家自然科学基金重大项目（51790534） |
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| Effects of water and salt stress on growth, yield and quality of cotton in southern Xinjiang |
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Feng Quanqing1, GAO Yang2, LI Yunfeng1, LIU Junming1, GAO Fukui1, WANG Lu3, SUN Jingsheng2
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1.Farmland Irrigation Research Institute of Chinese Academy of Agricultural Sciences，Graduate School of Chinese Academy of Agricultural Sciences;2.Farmland Irrigation Research Institute of Chinese Academy of Agricultural Sciences;3.College of Water Resource and Architecture Engineering,Tarim University
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| Abstract: |
| 【Objective】To explore the response of cotton under film drip irrigation to water and salinity stress in southern Xinjiang and further clarify its effective mechanism.【Method】Field experiments were carried out at the irrigation test station of the first division of Xinjiang alar Corps. The experiment set up 2 water treatments (W1: 22.5 mm, W2: 45 mm) and 3 salt treatments (S1：0.2 %, S2：0.4 %, S3：0.6 %), a total of 6 treatments.【Result】Water played a leading role in the formation of cotton final yield under water and salt stress, cotton yield was the highest with S1W2 treatment, which was 7502.85 kg/hm2. Water and salt had a very significant effect on cotton growth index and aboveground dry matter accumulation, and the dry matter accumulation of cotton at boll opening stage was most affected by water and salt stress, water stress and salt stress reduced the dry matter mass of cotton by 52.39% and 48.89% respectively.【Conclusion】Water and salt have a very significant impact on cotton growth index and aboveground dry matter accumulation. Irrigation volume plays a leading role in cotton yield composition. Although salt can inhibit cotton dry matter accumulation in different degrees, it can significantly improve cotton harvest index. Therefore, W1 irrigation volume can be used in heavy saline alkali land areas where irrigation volume cannot be guaranteed, and it is not recommended to reduce irrigation volume in light to medium saline alkali land. |
| Key words: cotton; Southern Xinjiang; Mulched Drip Irrigation; Water and salinity stress; yield; quality |
