Table 1.

Diclofop-methyl herbicide resistance level and Neotyphodium occultans endophyte infection of the Lolium multiflorum populations used for the plant crosses. Name of each population (nomenclature) stands for the first letter of original population, level of resistance (r: resistant or s: susceptible) and infection level (+ ≥95 or −≤5%)

Original population	Herbicide resistance	Endophyte infection (%)*	Nomenclature
Pampean	Susceptible	95	Ps+
	Susceptible	5	Ps−
Marshall	Susceptible	0	Ms−
	Resistant	0	Mr−
Gulf	Susceptible	0	Gs−
	Resistant	0	Gr−

^*Based on 100 examined seeds per population under microscope.