Table 1.

Mycorrhizal colonization and fungal structures in roots of watermelon inoculated (M, MS) or non-inoculated (CK, S) seedlings with AMF Funneliformis mosseae and subjected (S, MS) or not (CK, M) to salinity-alkalinity stress.

Treatment	Mycorrhizal colonization ratio (%)	Number of entry points on root (Num.cm-1)	Number of arbuscular (Num.cm-1)	Number of vesicles in root (Num.cm-1)
CK	0.00 ± 0.00c	0.00 ± 0.00c	0.00 ± 0.00c	0.00 ± 0.00c
M	41.13 ± 1.47a	10.9 ± 0.67a	8.2 ± 0.45a	5.81 ± 0.26a
S	0.00 ± 0.00c	0.00 ± 0.00c	0.00 ± 0.00c	0.00 ± 0.00c
MS	36.22 ± 1.12b	7.65 ± 0.33b	5.8 ± 0.38b	2.91 ± 0.08b

The values (mean ± standard error, n = 10) with different letters within columns are statistically different (P ≤ 0.05) according to Duncan’s multiple range test. AMF, arbuscular mycorrhizal fungi; CK, without AMF inoculation + without salinity-alkalinity; M, with AMF inoculation + without salinity-alkalinity; S, without AMF inoculation + with salinity-alkalinity; and MS, with AMF inoculation + with salinity-alkalinity.