Table 1 Linear mixed models for total ergot alkaloids in tall fescue plants. The grasses from the wild origins (Orig) Gotland (G) and Sweden (S) and cultivar ‘Kentucky-31’ (KY31) were compared with wild origin Åland (A) in water (W) and nutrition (N) treatment (Treat) plots. Results for the same model are shown for plants grown in Finland or Kentucky with all main factors and those interactions that were statistically significant in either of the experiments. Model estimates are standard errors (S.E.), degrees of freedom (df), and t-tests (t) with P-values (P) * < 0.001, < 0.01,* < 0.05, o < 0.1

From: Alkaloid Quantities in Endophyte-Infected Tall Fescue are Affected by the Plant-Fungus Combination and Environment

	FINLAND						KENTUCKY
	Value	S.E.	df	t	P		Value	S.E.	df	t	P
Intercept	1.980	0.104	103	19.04	0.001	***	2.065	0.130	100	15.85	0.001	***
Treat N	0.839	0.130	36	6.45	0.001	***	0.095	0.172	36	0.55	0.584
Treat W	0.144	0.130	36	1.11	0.276		-0.286	0.165	36	-1.74	0.091	o
W*N	-0.262	0.123	36	-2.13	0.040	*	-0.064	0.165	36	-0.39	0.701
Orig G	-0.092	0.139	103	-0.66	0.509		-0.122	0.163	100	-0.75	0.454
Orig S	0.046	0.139	103	0.33	0.741		-0.278	0.159	100	-1.74	0.084	o
Orig KY31	-0.606	0.144	103	-4.20	0.001		-0.694	0.160	100	-4.34	0.001	***
N*G	-0.461	0.163	103	-2.84	0.006	**	-0.036	0.189	100	-0.19	0.849
N*S	-0.619	0.160	103	-3.86	0.001	***	0.027	0.188	100	0.15	0.884
N*KY31	-0.423	0.169	103	-2.50	0.014	*	0.011	0.189	100	0.06	0.953
W*G	-0.133	0.163	103	-0.82	0.416		-0.035	0.189	100	-0.18	0.855
W*S	-0.047	0.160	103	-0.29	0.772		0.151	0.188	100	0.8	0.423
W*KY31	-0.176	0.170	103	-1.03	0.304		0.429	0.189	100	2.26	0.026	*
AIC	177.01						214.71
loglikelihood	-73.50						-92.35

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