Table 1.

Effect of different salinity levels on root length colonization of apple seedlings inoculated and non-inoculated with Glomus versiforme

Treatments	Root length colonization (%)
	Non-inoculation			Inoculation
	30	60	90	30	60	90
0	0	0	0	28.1a	44.3a	56.9a
2‰	0	0	0	20.7b	35.4b	46.2b
4‰	0	0	×	19.2c	27.7c	35.6c
6‰	0	×	×	18.2c	10.8d	×

^aValues of each column followed by the same letter are not significantly different at the 0.05 level. Each value represents the mean of 6 replicates. Numerals 30, 60 and 90 stand for sampling times (days) after salinity treatment. The sign “×” denotes that apple plants were dead.