Canada's last peach breeder develops climate-resilient fruit in Niagara

University of Guelph professor Jay Subramanian works at the Vineland Research & Innovation Centre in Niagara, where he is Canada's only remaining peach breeder. He combines modern genetics with traditional cross-pollination techniques to develop tender fruit varieties that can withstand the stresses of climate change. His current focus is breeding peaches that ripen later on the tree and stay fresh longer after harvest.

The Niagara region produces more than 70 percent of Canada's peaches along with significant volumes of nectarines, plums, pears, cherries, grapes and apricots. Climate change has made harvests increasingly unpredictable. Sour cherry crops were nearly wiped out this year by a cold winter and late frost, while extreme heat and wildfire smoke have made farm work difficult and damaged fruit.

Subramanian notes that peach harvests now begin around July 10, nearly three weeks earlier than when he started 24 years ago. Extreme heat above 33 Celsius causes fruit to burn on the tree, and unpredictable winter snowfall affects groundwater levels needed for healthy crops. These shifts disrupt traditional harvest schedules for growers, marketers and consumers alike.

The breeding process involves transferring pollen between varieties with desirable traits, then evaluating the resulting fruit for qualities including colour, shape and taste. Developing a new variety takes years. Subramanian says the goal is to give growers flexibility to avoid harvesting during dangerous heat waves and to give consumers more time to use the fruit, reducing waste.

Ontario's tender fruit industry was valued at more than $94 million in 2025, not including related economic activity. However, Subramanian says research funding has been limited. The only recent government support for climate-resilient tender fruit breeding was slightly over $1 million from the federal government two years ago.

The number of fruit breeders in Canada has declined from 10 to 12 when Subramanian began his career to just four today. He warns that without renewed support from higher levels of government and institutions, the expertise needed to adapt fruit crops to changing conditions will be lost as the remaining breeders retire.

Subramanian was born in India and has worked in Canadian fruit breeding for 24 years. He emphasizes that the unpredictability of weather patterns — including early and late frosts, extreme heat, drought, excessive rain and variable winter snow cover — is the central challenge facing tender fruit production in Ontario.