Management of bentgrass cultivars for improved resistance to Fusarium patch under climate change

气候变化下翦股颖品种的管理以提高对镰刀菌斑块的抗性

• 批准号: 469759-2014
• 负责人: Hsiang, Tom
• 金额: $ 5.68万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=577463
• 关键词: Management; bentgrass; cultivars; improved; resistance

Management of bentgrass cultivars for improved resistance to Fusarium patch under climate change Atmospheric CO2 concentrations are expected to reach between 500 to1000 ppm by the end of the century and, as a consequence, Canada and other northern countries may experience a seasonal temperature increase between 1.5 and 4°C. These changes will affect the survival of turfgrasses and fungi as well as affecting their interactions, with a potential for greater disease severity. From among widely used bentgrass cultivars worldwide, or those with particular potential for cold environments, we plan to screen for ones which show the greatest resistance to Microdochium patch. We will study the turfgrass and fungal interactions under current and predicted future climatic conditions (CO2 and temperature increases). In addition, we will test the efficacy of resistance activators such as Civitas/Harmonizer which are sustainable alternatives to chemical fungicides, under altered climatic conditions in atmosphere-control growth chambers and in the field. The grass cultivars will first be tested in the lab, and a select few will be tested in the field in both Canada and Scandinavia. Cultivars that perform well in one or both locations will be further analyzed for their pathogen-associated and activator-induced molecular responses under current climatic and some predicted future climatic conditions to shed light on the genes and pathways that may be involved. The project will provide recommendations for turfgrass managers on the choice of cultivars and on improved management practices to face the challenges and opportunities of climate change. This research will also generate new scientific information of great interest for stakeholders represented by the Turf Research Association partner, CTRF, which includes turgrass seed companies and turfgrass managers, and of benefit to the other industry partner, PetroCanada, for commercial and R&D purposes.

气候变化条件下提高禾草品种对镰刀菌斑抗性的管理 到世纪末，大气中的二氧化碳浓度预计将达到500至1000 ppm，因此，加拿大和其他北方国家的季节性气温可能会上升1.5至4 °C。这些变化将影响草坪草和真菌的生存，并影响它们的相互作用，可能导致更严重的疾病。从世界范围内广泛使用的禾草品种，或那些具有特殊的潜力，寒冷的环境中，我们计划筛选那些表现出最大的抵抗Microdochium补丁。我们将研究草坪草和真菌的相互作用，在当前和预测的未来气候条件下（二氧化碳和温度升高）。此外，我们还将在大气控制生长室和田间条件改变的情况下，测试抗性激活剂（如Civitas/Harmonizer）作为化学杀真菌剂的可持续替代品的功效。草品种将首先在实验室进行测试，并选择一些将在加拿大和斯堪的纳维亚半岛的实地测试。在一个或两个地点表现良好的品种将进一步分析其病原体相关和激活剂诱导的分子反应，在当前的气候和一些预测的未来气候条件下，揭示可能涉及的基因和途径。该项目将为草坪草管理人员提供关于品种选择和改进管理做法的建议，以应对气候变化的挑战和机遇。这项研究还将为草坪研究协会合作伙伴CTRF（包括草坪种子公司和草坪管理者）代表的利益相关者提供新的科学信息，并为其他行业合作伙伴加拿大石油公司（PetroCanada）提供商业和研发方面的利益。