Table 1.

Analysis of variance of the effects of open‐versus self‐pollination, five types of stress and stress level (control, intermediate, or high) on the biomass of Anthyllis vulneraria

Source	Biomass
	df	F
Stress type	4	43.14***
Novel versus familiar	1	132.91***
Rest	3	13.21***
Stress level	2	250.89***
Stress type × level	8	13.79***
Novel × level	2	32.95***
Rest × level	6	7.40***
Open versus Self‐pollination	1	14.69***
Pollination × Stress type	4	0.33
Pollination × novel	1	0.76
Pollination × rest	3	0.19
Pollination × Stress level	2	0.11
Pollination × Stress type × level	8	0.47
Pollination × novel × level	2	0.03
Pollination × rest × level	6	0.62
Residual	263

Stress type was split into the contrasts novel (waterlogging, shade) versus familiar types of stress (drought, nutrient deficiency, defoliation), and the remaining effect of stress type.

^*** p < 0.001.