| 摘要: |
| 为研究异根嫁接黄瓜对适度水分亏缺的响应，以中农26号黄瓜（Cucumis sativas L.）为材料，以自根嫁接黄瓜适宜水分管理（每次20 m3/667 m2）为对照，研究异根嫁接黄瓜生长和养分吸收等指标对适度亏缺灌溉（每次12 m3/667 m2）的响应。结果表明：与自根嫁接黄瓜相比，适度亏缺灌溉下，异根嫁接黄瓜的生长势较强，每株黄瓜N、P和K养分的积累量分别提高了49.6%~53.3%、16.7%~29.0%和32.2%~40.5%；产量和总生物量也显著提高。这一结果表明，通过异根嫁接可以在减少灌水量的同时，维持地上部营养生长，促进养分吸收和干物质积累，从而实现良好的农艺节水效果。 |
| 关键词: 黄瓜 水分适度亏缺 异根嫁接 营养生长 养分吸收 |
| DOI：10.11841/j.issn.1007-4333.2014.03.19 |
| 投稿时间：2013-10-02 |
| 基金项目:北京果类蔬菜创新团队和现代农业产业技术体系建设专项CARS-25；星火计划（2012GA600002）；十二五科技支撑项目（2011BAD12B01） |
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| Influence of grafting on cucumber growth and nutrient absorption under water-deficient condition |
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ZHANG Xiao-ying1, LIANG Xin-shu1, ZHANG Zhen-xian1, TONG Er-jian2, GAO Li-hong1
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| (1.College of Agronomy and Biotechnology/Beijing Key Laboratory of Growth and Developmental Regulationfor Protected Vegetable Crops, China Agricultural University, Beijing 100193, China;2.Agricultural Sscience Institute, Fangshan District, Beijing 102446, China) |
| Abstract: |
| This study was concerned on the response of different-root-grafting (G1) to moderate deficient irrigation (12 m3/667 m2, W1).The cucumber "Zhongnong No.26" (Cucumis sativas L.) was used as the test material, and self-root grafted cucumber (G0) under appropriate irrigation (20 m3/667 m2, W2) as control.The results showed that, compared to self-root grafted cucumber the different-root-grafting under moderate deficient irrigation condition had stronger growth and higher N, P and K contents, 49.6%-53.3%, 16.7%-29.0% and 32.2%-40.5% respectively, .The total plant biomass and fruit yield were significantly higher under different-root-grafting than that under self-root-grafting.The different-root-grafting could thus improve cucumber growth and enhance nutrient absorption and dry matter accumulation under moderate deficient irrigation condition.In addition, different-root-grafting can enhance water-saving quantity by decreasing irrigation quantity and may be used as one of the effective water saving techniques. |
| Key words: cucumber water deficient different-root grafting vegetative growth nutrient absorption |
