Table 2.

Root hair density and fungal colonization of Posidonia oceanica adults in two different substrates in Subset 2.

Sample	Root hair density (number mm−1)	Total colonization (%)	Surface hyphae (%)	Intraradical hyphae (%)	Microsclerotia (%)
Kruskal-Wallis test	H = 1.01	H = 8.78	H = 12.29	H = 1.92	H = 1.13
	p = 0.315	p = 0.003	p < 0.001	p = 0.166	p = 0.289
silty substrate (n = 30)	7.3 ± 3.2	10 ± 3.5 a	5 ± 1.9 a	5 ± 2.5	3 ± 2.3
sandy substrate (30)	2.8 ± 1.1	20 ± 3.9 b	17 ± 3.8 b	5 ± 1.6	1 ± 0.8

Mean values of root hair density and fungal root colonization (total colonization, colonization by surface hyphae, intraradical hyphae and intracellular microsclerotia) ± SE are given. Differences between the samples were evaluated using Kruskal-Wallis test and grouped according to the post hoc Nemenyi test (different letters indicate significantly different groups). For more details see Materials and Methods.