Table 1.

Summary of (generalized) linear models testing the effects of developmental stage, water and nutrient treatment on the presence and size of guttation drops, respiration and transpiration rates in R. alectoroplophus

	Drops			Respiration			Transpiration
Effect	d.f.	Deviance	P	Sum Sq.	F	P	Sum Sq.	F	P
Nutrients	1	4·39	0·0362	3·17	10·23	0·0031	0·36	0·51	0·48
Water	1	0·04	0·84	0·03	0·10	0·76	0·60	0·84	0·37
Stage	1	7·08	0·0078	0·0002	0·0005	0·98	9·28	13·02	0·0010
Nutrients × Water	1	0·65	0·42	0·16	0·52	0·48	0·76	1·07	0·31
Nutrients × Stage	1	0·50	0·48	0·29	0·95	0·34	0·01	0·01	0·93
Water × Stage	1	0·13	0·72	1·02	3·30	0·08	1·99	2·79	0·10
Nutrients × Water × Stage	1	0·00	1·00	0·56	1·79	0·19	0·50	0·70	0·41
Residuals	32	21·37		9·92			22·80

Statistically significant results (P < 0·05) are highlighted in bold.

Non-significant terms (P > 0·05) were omitted from the final models.