In our studies, Saule variety had the highest value of
this ratio (1:9 at 100 mM NaCl and the relative value to
the control is 146%). It indicates that, in response to
increased stress, thickness of the exodermis increased
compared with the control. In the other varieties, means
of this ratio were less than 1 and less than that in the control
The diameter of the central cylinder in barley plants
also decreased under the influence of salinity. The greatest
decrease of the central cylinder at high NaCl concentration
was observed in Odesskaya-100 (27%) сv and the
smallest decline in Asem cv (13%) (Figure 11)
The diameter of the central cylinder of different varieties
is arranged as follows (% to control): Asem (87%) >
Saule (80%) > Bastama (75%) > Odesskaya-100 (73%).
Reducing the diameter of the vascular bundles is an indicator
of decrease in conductivity for water and minerals
(Ortega et al., 2006). It was shown that the water flow
densities of Citrus root orders were caused by a significant
reduction of the water uptake by first order roots
(Rewald et al., 2012). Previous studies on cotton roots of
herbaceous plants found smaller xylem vessels and
altered cambial activity (Boughalleb et al., 2009). NaCl
treatment caused inhibition of growth of vascular system
in mungbean seedlings; in treated plants vascular cylinder
was very poor (Rashid et al., 2004).
So, barley varieties were screened for resistance to
salinity on growth parameters and anatomical structures
of leaves and roots. The tolerant and sensitive barley
varieties to NaCl salinity stress and anatomical peculiarities
of leaf and root structure of these varieties of barley
plants (Hordeum vulgare L.) were determined.
In our studies, Saule variety had the highest value ofthis ratio (1:9 at 100 mM NaCl and the relative value tothe control is 146%). It indicates that, in response toincreased stress, thickness of the exodermis increasedcompared with the control. In the other varieties, meansof this ratio were less than 1 and less than that in the controlThe diameter of the central cylinder in barley plantsalso decreased under the influence of salinity. The greatestdecrease of the central cylinder at high NaCl concentrationwas observed in Odesskaya-100 (27%) сv and thesmallest decline in Asem cv (13%) (Figure 11)The diameter of the central cylinder of different varietiesis arranged as follows (% to control): Asem (87%) >Saule (80%) > Bastama (75%) > Odesskaya-100 (73%).Reducing the diameter of the vascular bundles is an indicatorof decrease in conductivity for water and minerals(Ortega et al., 2006). It was shown that the water flowdensities of Citrus root orders were caused by a significantreduction of the water uptake by first order roots(Rewald et al., 2012). Previous studies on cotton roots ofherbaceous plants found smaller xylem vessels andaltered cambial activity (Boughalleb et al., 2009). NaCltreatment caused inhibition of growth of vascular systemin mungbean seedlings; in treated plants vascular cylinderwas very poor (Rashid et al., 2004).So, barley varieties were screened for resistance tosalinity on growth parameters and anatomical structures
of leaves and roots. The tolerant and sensitive barley
varieties to NaCl salinity stress and anatomical peculiarities
of leaf and root structure of these varieties of barley
plants (Hordeum vulgare L.) were determined.
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