Fig. 1 Relative yield total (RYT) of red clover and endophyte-infected (E+) and noninfected (E-) tall fescue genotypes DN2 and DN11 grown in binary mixtures. When endophyte-infected, the concentration of loline alkaloids in roots of DN2 was twice that of DN11, indicating a possible allelopathic effects on red clover. Adapted from Malinowski et al. (1999a)

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