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Ontario growers notice longer tubers during harvesting

According to Ontario potato specialist Eugenia Banks’ October 5 update, in the Canadian province of Ontario, round varieties for both the fresh and processing markets have produced a small number of long tubers.

Banks consulted retired potato breeder Hielke de Jong about the long tubers. He said, “My [unproven] hypothesis is that different varieties respond to heat stress in different ways. Some may produce bottle shaped tubers whereas others may produce long(er) tubers.”

Heat-related stresses were not uncommon for Ontario growers throughout the season, with high incidences of second growth and misshaped tubers recorded. A heat wave earlier in the summer disrupted the physiology of potato plants, resulting in knobs, sprouts and off-shaped tubers.

In the October 5 update, Mark VanOostrum stated that about 70 per cent of the Ontario processing crop has been harvested. Yields are better than expected, but there were areas in fields that received heavy rainfall in August that were not dug at the time of the update.

Source: potatoesincanada.com


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