Publication Date
1997
Description
A field experiment studying the impact of the ryegrass endophyte (Acremonium lolii), was carried out at two locations in Galicia (Northwest Spain): Mabegondo on the Atlantic coast and Puebla de Brollón in the interior. Of 56 half-sib families of Galician perennial ryegrass (Lolium perenne L.) studied, 28 held endophyte (E+) and the other 28 not (E-). All these families were established in trial plots in 1992. Significant differences between E- and E+ families were obtained, and E+ families had a higher (P < 0.05) first cut, spring and total yield than E- families at Puebla de Brollón (dry location) in the third year after planting. The infection of perennial ryegrass with some strains of A. lolii seems to benefit the host in stressful conditions. In some areas of Galicia, climatic conditions are often stressful for perennial ryegrass and the chances of E+ plants being favored by either natural or artificial selection seems high.
Citation
Oliveira, J A. and Collar, J, "Influence of the Fungal Endophyte Acremonium Lolii on Dry Matter Yield of Perennial Ryegrass in Galcia, Spain" (2024). IGC Proceedings (1997-2023). 4.
https://uknowledge.uky.edu/igc/1997/session13/4
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Influence of the Fungal Endophyte Acremonium Lolii on Dry Matter Yield of Perennial Ryegrass in Galcia, Spain
A field experiment studying the impact of the ryegrass endophyte (Acremonium lolii), was carried out at two locations in Galicia (Northwest Spain): Mabegondo on the Atlantic coast and Puebla de Brollón in the interior. Of 56 half-sib families of Galician perennial ryegrass (Lolium perenne L.) studied, 28 held endophyte (E+) and the other 28 not (E-). All these families were established in trial plots in 1992. Significant differences between E- and E+ families were obtained, and E+ families had a higher (P < 0.05) first cut, spring and total yield than E- families at Puebla de Brollón (dry location) in the third year after planting. The infection of perennial ryegrass with some strains of A. lolii seems to benefit the host in stressful conditions. In some areas of Galicia, climatic conditions are often stressful for perennial ryegrass and the chances of E+ plants being favored by either natural or artificial selection seems high.
