Plant and endophyte genotype affects peramine concentrations in ryegrass/endophyte associations
DOI:
https://doi.org/10.33584/rps.12.2006.3019Abstract
Peramine concentrations in a range of ryegrass/ AR1 endophyte associations have been measured during pre-market safety testing. While concentrations for diploid perennial ryegrass cultivars were in excess of 15ppm a small number of associations were below 10ppm. These proved to be tetraploid ryegrass. When assessing the effectiveness of a ryegrass/AR1 association to deter ASW, and other invertebrate pasture pests, the host ryegrass cultivar or genotype and consequent peramine concentrations need to be taken into consideration.
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