Abstract:
Ziziphus spina-christi
are distributed in arid and semi-arid regions of w
orld. Most of
these areas are subjected to soil salinity. So, the
aim of this study was to find out the
effects of different NaCl concentrations on
Z. spina-christi
seedlings growth, in the
presence of a number of single and dual AMF inoculu
ms, to provide some information
about possible effects of AMF under salinity condit
ion. For this purpose, the study was
conducted in nursery using 4×3 factorial scheme (4
salinity levels; 0, 50, 100 and 150 mM
and 3 mycorrhiza treatments; non-mycorrhizal plant,
G. fasciculatum
and
Funneliformis
mosseae
+
G
.
fasciculatum
inoculated plants). Our results revealed that salin
ity has
negative effects on root length colonization, growt
h parameters, chlorophyll content,
nutrients absorption and results in Na, proline, su
peroxide dismutase, peroxidase and
catalase activity increment but mycorrhizal plants
maintained higher growth
characteristics, chlorophyll content, nutrients, ro
ot colonization and enzymes activity,
proline and Na ion reduction and these effects in d
ual inoculum were significantly
different from single inoculum fungi. According to
the results dual-inoculated plants are
more tolerative to salinity compared to single-inoc
ulated and not-inoculated seedlings.
Indicating that
Z. spina-christi
plantation in saline soil would give us the best re
sult if we
use dual inoculated plants. It could be said that i
n saline soils
Z. spina-christi
dual-
inoculated with mycorrhiza is tolerative and more e
fficient.
Keywords:
Enzyme, Mycorrhiza, Proline, Salinity,
Ziziphus spina-christi
.
