Stronger potato varieties will increase yields for Canadian growers, which translates into higher profits.
Dr. Benoit Bizimungu, head of potato breeding at the Fredericton Research and Development Centre, said a number of hybrids bred from these wild varieties could be ready for industry trials next year.
Bizimungu selected the German plants because of superior traits such as high yield, as well as strong natural resistance to PVY, late blight, drought, and insects like the Colorado potato beetle.
“Although the primary interest was multiple disease resistance and high yield potential, a number of progenies show a nice deep yellow flesh color, which is usually associated with carotenoids,” Bizimungu explains. This is great news for consumers who want more antioxidants in their diet.
“What is really exciting is that some of these wild species have never been used in potato breeding before now,” he says. “Using these new parents broadens the genetic base.”
“It’s good to have multiple sources for breeding, especially for things like late blight where it keeps changing.”
Dr. Bizimungu obtained this unique plant material as a result of his collaboration with potato geneticist Dr. Ramona Thieme of the Julius Kuhn-lnstitut (JKI) at the Federal Research Centre for Cultivated Plants in Braunschweig, Germany.
The imported species come from wild potato cultivars that originated in South America, the birthplace of the potato.
Robert Anderson and Jill Ebbett, fifth-generation potato farmers from East Glassville, N.B., were named Atlantic’s Outstanding Young Farmers for 2018.
Agriculture and Agri-Food Canada scientist Louis-Pierre Comeau is sifting his way through New Brunswick soil in search of answers to one of the biggest issues facing local farmers: the loss of soil organic matter and the decrease of soil health in farm fields.
This project, supported with a federal government investment of up to $4.5 million, includes the purchase and installation of new robotic equipment that will sort, grade, and pack more fresh potatoes in less time, enabling the company to improve their product quality, lower operational costs and develop new markets in the United States.
The company specializes in potato packaging and employs more than 125 people. The new plant is intended to give Patates Dolbec more flexibility and allows the company to track data in real-time for better decision making and a more organized workplace.
Syngenta Canada Inc. has received registration for Revus fungicide as a potato seed treatment for the suppression of pink rot and control of seed‑borne late blight in potatoes.
Pink rot is a devastating, soil-borne disease caused by the pathogen Phytophthora erythroseptica that thrives in wet, poorly drained soils. Infection typically takes place pre-harvest, as the pathogen enters tubers through the stem end and lenticels.
Tubers infected with pink rot will often decay during harvest and handling, which allows the pathogen to spread quickly from infected tubers to healthy tubers while in storage.
“Every field has the potential for pink rot,” says Brady Code, eastern technical lead with Syngenta Canada. “It takes a very small number of infected tubers going over harvest equipment or getting by on the belt to put an entire season of work in jeopardy, and leave growers with far fewer healthy potatoes to ship.”
Revus contains the active ingredient mandipropamid (Group 40), and works by protecting the daughter tubers from becoming infected with pink rot. It also provides control of seed-borne late blight (Phytophthora infestans), according to a company press release.
Revus is applied at 5.9-11.8 mL per cwt of seed (13-26 mL/100 kg of seed).
Following a seed treatment application of Revus fungicide, the first foliar fungicide application should be a product that does not contain a Group 40 active ingredient.
Maximum Residue Limits (MRLs) for mandipropamid have been established for markets including Canada, the United States, Japan, and South Korea, in support of the seed treatment use pattern.
Potato seed infected late in the season with Dickeya (new blackleg) usually does not show symptoms in the field before harvest nor in seed storages. This is because Dickeya requires high temperatures for the development of visible symptoms. The optimum temperature for Dickeya is above 25 C.
By contrast, the old blackleg (Pectobacterium) can develop at cool temperatures (8 C to 10 C), and symptoms are usually visible when cutting seed.
Banks says she received two questions about Dickeya:
Q: If dormant infection of Dickeya is suspected, could you incubate a sample of tubers at 25 C to 30 C so the tubers will show Dickeya symptoms in about 2 weeks?
A: Banks asked Steve Johnson (Maine) and Gary Secor (North Dakota) this question and both said no. It takes more than two weeks for the symptoms to develop. Banks says the first time she saw Dickeya symptoms developing from seed tubers with dormant infection was in late June (the seed tubers had been planted by the middle of May), and both Johnson and Secor agree.
Q: Are Dickeya lesions smelly?
A: We all know how smelly the old blackleg is. The slimy, black stems smell like rotten fish, a disgusting smell noticeable at least 30 feet away from an infected plant. Usually Dickeya is not smelly. The bacterium grows inside the stem moving up in the vascular tissue. Dickeya-infected stems are usually dark brown, not inky black, slimy and smelly like the old blackleg. Eventually, the infected stems may be invaded by secondary bacteria that cause a black rot. If, shortly after emergence, you see small, wilted plants with a black stem base, it is probably the old blackleg. If the summer is cool and wet, probably the old blackleg will prevail. In hot summers, Dickeya will be the prevalent disease (wilted foliage is also a symptom of Dickeya).
Based on independent field trials, from 2015 to 2017, Levity has demonstrated that their product, Potato Lono, increases potato yields by up to $1,000 per hectare. Trials were held in England, Ireland, Netherlands, and France.
Potato Lono improves photosynthesis, and helps crops increase carbon efficiency during times of stress, improving tuber initiation and bulking. This can result in increased tuber numbers, when applied during tuber initiation, with trials showing increases of over 60,000 extra tubers per hectare across various potato varieties.
"We're excited to have revealed this groundbreaking data" said David Marks, Joint MD, Levity CropScience. "Our hard work has paid off and now growers around the world will be able to benefit from this research and our innovative application of this knowledge into unrivalled, pioneering fertilizer products."
Anne Weston, Joint MD, Levity CropScience added: "Over the next few weeks, we will be attending several exhibitions to meet farmers and their advisers to highlight and discuss our results, including the fantastic benefits Levity CropScience's products offer the farming and horticultural industries throughout the world. It is another example of how our innovative Lancashire company is driving research into increasing crop yields throughout the world, which will ultimately benefit both the environment and the local population."
Usually wet seasons favour crop development, but incidence of storage rots is a concern, especially if rainfall occurs late in the growing season, advises Eugenia Banks, Ontario potato specialist.
Mancozeb fungicide use only permitted for potatoesThe Pest Management Regulatory Agency (PMRA) completed its re-evaluation of…
Natural pest control under review in P.E.I.A research scientist at Agriculture and Agri-Food Canada in P.E.I. is…
Heatwave keeps late blight in check but stems sunburnOntario's hot weather keeps late blight in check but some…
Ontario Potato Field DayThu Aug 23, 2018 @ 3:00PM - 08:00PM