Evaluation of the link between soil microbiota and potato crop yield

土壤微生物群与马铃薯作物产量之间联系的评估

• 批准号: 515788-2017
• 负责人: Yurgel, Svetlana
• 金额: $ 1.82万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639319
• 关键词: Evaluation; link; between; soil; microbiota

Prince Edward Island (PEI) Potato Board represents more than 200 potato growers in the province, andrepresents the interests of the PEI potato industry to various levels of government. PEI potato growers havebeen experiencing significant problems with understanding the factors that affect potato yield and diseasedevelopment. Despite significant efforts, little is conclusively known about how soil biological and physicalcharacteristics are linked to high and low potato yields. In preliminary studies supported by the Potato Boardlooking at yield variability within fields, researchers have seen indications that soil compaction, certain nutrientdeficiencies, and soil-borne pathogens such as Verticillium, root lesion nematodes, and common scab can havesignificant effects on marketable yield. The goal of this research is to evaluate a link between potato yield anddisease occurrence and the diversity and structure of soil microbial communities in potato fields. This willprovide a foundation for the development of an affordable method for prediction of field production potential,allowing the grower to test the soil in the fall before potato planting and adjust the cropping strategy formaximum yield and profit. The proposed project is a first collaborative research conducted by Dr. Yurgel(Dalhousie University) and the PEI Potato Board, which will provide a great benefit to both partners. Based onthe obtained results the efficient strategy the further investigation of the link between soil communitiesstructure and potato fields performance will be developed. These data will provide a validation of the researchstrategy and will serve as a foundation for large scale research project for analysis of microbial communities inPEI potato fields in the order to develop microbial communities based molecular biomarkers for prediction ofpotato yield and disease occurrence.

爱德华王子岛（PEI）马铃薯委员会代表该省200多名马铃薯种植者，并向各级政府代表PEI马铃薯产业的利益。PEI马铃薯种植者在了解影响马铃薯产量和病害发展的因素方面遇到了重大问题。尽管付出了巨大的努力，土壤的生物和物理特性是如何与马铃薯的高产量和低产量联系在一起的，我们仍然知之甚少。在马铃薯委员会支持的关于田间产量变化的初步研究中，研究人员发现，土壤压实、某些营养缺乏和土壤传播的病原体，如黄萎病菌、根病线虫和普通疮痂，会对市场产量产生重大影响。本研究的目的是评价马铃薯产量与病害发生的关系以及马铃薯田土壤微生物群落的多样性和结构。这将为开发一种经济实惠的方法来预测田间生产潜力提供基础，使种植者能够在种植马铃薯之前在秋季测试土壤，并调整种植策略以获得最大的产量和利润。拟议的项目是由达尔豪斯大学的尤格尔博士和PEI马铃薯委员会进行的第一次合作研究，这将为双方提供巨大的利益。在此基础上，提出了进一步研究土壤群落结构与马铃薯田生产性能关系的有效策略。这些数据将为研究策略提供验证，并将为pei马铃薯田微生物群落分析的大规模研究项目奠定基础，以便开发基于微生物群落的分子生物标志物，用于预测马铃薯产量和病害发生。