Physiological Factors Associated with Perennial Ryegrass Freezing Tolerance

Perennial ryegrass is often used on sports fields due to its rapid establishment and superior traffic tolerance. However, compared to other cool-season grasses, perennial ryegrass exhibits higher levels of freezing injury in northern climatic regions. Recent research has identified perennial ryegrass germplasm that has superior freezing tolerance compared to many commercially available cultivars. Click here to read how progress is being made to develop perennial ryegrass cultivars better adapted to northern climatic regions.

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