Post-doctoral fellow Balaji Devatha works with the hyperspectral camera technology in a Niagara vineyard.
想象一下，在葡萄园中甚至可以看到症状之前，才能够检测到葡萄病毒的存在。
布罗克大学（Brock University）酷气候和葡萄栽培研究所（CCOVI）的高级科学家Sudarsana Poojari正在努力帮助葡萄和葡萄酒行业做到这一点 - 没有高价的价格，或者需要使用复杂的设备和数据。必威手机登录
Poojari正在领导一个新的研究项目，该项目正在研究使用手持高光谱成像系统来检测年轻和无症状葡萄中的葡萄树红色斑点病毒和葡萄藤相关病毒3。
The goal is to identify unique spectral signatures that indicate the presence of these viruses in the early stages of infection. That data would then be shared with the industry, allowing grape growers to make more informed grapevine disease management decisions.
Cool Climate Oenology and Viticulture Institute Scientist Sudarsana Poojari, right, and post-doctoral fellow Balaji Devatha examine grapevines in Brock’s greenhouse to develop baseline data for the project.
“很难确定这些病毒感染ions based on visual observations alone, so we need something to detect what our eyes cannot see,” Poojari explained. “A system for the detection and discrimination of grapevine viruses in young and asymptomatic phenotypes would provide a much-needed tool to the grape and wine sector.”
The research team includes Poojari, CCOVI Researcher Jim Willwerth, post-doctoral fellow Balaji Devatha, and Wendy McFadden-Smith, Horticulture Integrated Pest Management Specialist at the Ontario Ministry of Agriculture Food and Rural Affairs. The Ontario Agri-Food Research Initiative Commercialization Stream is supporting this work with a $145,000 grant.
葡萄病毒疾病的缓解和管理一直是加拿大葡萄和葡萄酒行业的优先事项，而Poojari逐年逐年逐年进入CCOVI葡萄病毒测试实验室的样品数量稳定增加。
Once a virus infects the plant there is no cure, so tools for early detection are the best way for growers to protect the health of their vineyards.
高端高光谱摄像头技术用于农业环境中，以检测其他疾病，以及土壤中的营养失衡和水位。它使用特殊的光学元件来捕获数百个光谱频段，并与无人机和评估数据的专家一起使用。
Just like fingerprints, every object has a unique spectral signature, and Poojari said researchers will attempt to use these signatures to identify differences between healthy, asymptomatic and symptomatic grapevine leaves. They have begun baseline testing on plants in Brock’s greenhouse and will collect field data at various intervals throughout the growing season starting next year.
To make this technology more accessible across the industry, Poojari and his team are using a more affordable hand-held camera and will work with Devatha to distill the complex data into practical information that can be easily applied in the vineyard.
“That’s the whole hallmark of this project – to fine-tune the data so that everyone can understand it,” Poojari said.
Researchers at Brock’s Cool Climate Oenology and Viticulture Institute are using hyperspectral camera technology to identify grapevine viruses in the early stages of infection.
具有物理和材料科学背景的Devatha专门研究这种技术。
“I have always wanted to contribute work towards sustainability. When the opportunity arose to make viticulture more sustainable with the help of a brilliant team led by Dr. Poojari, I just jumped into it,” he said.
Partnering with Willwerth and McFadden-Smith will also ensure the data gets directly into the hands of growers, helping to further bolster the broader work CCOVI and its partners are doing to develop a national clean plant program for grapevines.
“If we could come up with a tool that could determine the health status of the young vineyards, I think that would provide grape growers the opportunity to make informed virus-management decisions,” Poojari said.
