Publication Date
1989
Description
Most new forage tall fescues (Festuca arundinacea Schreb.) are being marketed as low Acremonium coenophialum MorganJones and Garns cultivars. However, the breeding techniques and objectives used in the development of these new cultivars were similar to those used prior to the discovery of A. coenophialum in tall fescue (Pedersen and Sleper, 1988). The low A. coenophialum status of many new cultivars was produced accidentally, or by seed treatment after breeding work was completed. There is little evidence that A. coenophialum impacts the agronomic fitness of tall fescue in the field. A lack of stand persistence in low A. coenophialum tall fescue pastures compared to highly A. coenophialium-infected tall fescue pastures in one marginal environment (Texas) has been observed (Read and Camp, 1986). Our objective is to present results from field studies designed to investigate differences in the agronomic performance of highly A. coenophialum-infected and low A. coenophialum tall fescue cultivars. The impact of these differences on breeding objectives and techniques are to be discussed.
Citation
Pederson, J F. and Joost, R E., "Effect of Acremonium coenphialum on Seedling Vigor and Persistence of Lines of Tall Fescue Consquence on Breeding Techniques Techniques" (2025). IGC Proceedings (1989-2023). 7.
https://uknowledge.uky.edu/igc/1989/session3b/7
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Acremonium coenphialum on Seedling Vigor and Persistence of Lines of Tall Fescue Consquence on Breeding Techniques Techniques
Most new forage tall fescues (Festuca arundinacea Schreb.) are being marketed as low Acremonium coenophialum MorganJones and Garns cultivars. However, the breeding techniques and objectives used in the development of these new cultivars were similar to those used prior to the discovery of A. coenophialum in tall fescue (Pedersen and Sleper, 1988). The low A. coenophialum status of many new cultivars was produced accidentally, or by seed treatment after breeding work was completed. There is little evidence that A. coenophialum impacts the agronomic fitness of tall fescue in the field. A lack of stand persistence in low A. coenophialum tall fescue pastures compared to highly A. coenophialium-infected tall fescue pastures in one marginal environment (Texas) has been observed (Read and Camp, 1986). Our objective is to present results from field studies designed to investigate differences in the agronomic performance of highly A. coenophialum-infected and low A. coenophialum tall fescue cultivars. The impact of these differences on breeding objectives and techniques are to be discussed.
