Simulated field environment with combined salt and drought stresses as a platform for phenotyping plant tolerance to salinity

以盐和干旱胁迫相结合的模拟田间环境为植物耐盐性表型分析的平台

• 批准号: 117288830
• 负责人: Professor Dr. Urs Schmidhalter
• 金额: --
• 依托单位: Lehrstuhl für Pflanzenernährung
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/117288830?language=en
• 关键词: Simulated; field; environment; combined; salt

Salinity occurs often simultaneously with drought stress. Therefore, breeding for tolerance to combined both stresses can contribute significantly to crop yield. However, classical selection in salinity has generally been unsuccessful, partly due to high variability of salt stress resulting from the different salinity and drought status. Unfortunately, the use of unrealistic stress protocols for mimicking salinity and drought stress is the norm rather than the exception in biotechnological studies. Therefore, the great challenge is to gain knowledge required to develop plants with enhanced tolerance to field conditions. Our overall hypothesis is that a realistic stress protocol simulating a field environment with combined salt and drought stress as a platform for precision phenotyping of plant tolerance to salinity may solve this problem. This study will demonstrate that highly managed stress environments can be created and key traits of plants can be characterised by using advanced non-destructive sensors that are able to identify relevant traits of plants.

盐胁迫往往与干旱胁迫同时发生。因此，对这两种胁迫组合的耐受性育种可以显著地有助于作物产量。然而，在盐度的经典选择一般是不成功的，部分原因是高变异性的盐胁迫导致不同的盐度和干旱状态。不幸的是，在生物技术研究中，使用不切实际的压力协议来模拟盐度和干旱压力是常态而不是例外。因此，最大的挑战是获得所需的知识，以开发对田间条件具有增强耐受性的植物。我们的总体假设是，一个现实的压力协议模拟与盐和干旱胁迫相结合的田间环境作为一个平台，植物耐盐性的精确表型可能会解决这个问题。这项研究将证明，可以创建高度管理的胁迫环境，并可以通过使用能够识别植物相关性状的先进非破坏性传感器来表征植物的关键性状。