Na+ K+ compartmentalization in Spinacea oleracea and their effects on
its growth anatomy physiology and non-structural carbohydrates
Among all the limiting factors in plant growth, soil salinity is one of
the critical factors, but mechanisms of its effects in Spinacea oleracea
especially the compartmentalization of Na+ and K+ need further
investigations. In this study different concentrations of Nacl to S.
oleracea . The objective was to study the growth, anatomy, physiology
and non-structural carbohydrates. The other objective was to investigate
Na+ and K+ compartmentalization in different plant tissues. We found
that application of sodium significantly reduced the studied parameters
of growth, anatomy, and physiology. Maximum amount of Na+ was
compartmentalized in leaf-blade while the minimum in roots. Similarly,
maximum K+ was compartmentalized in mid-rib and minimum in stem. The
Na+: K+ decreased significantly with the increasing salinity
application. Non-structural carbohydrates also decreased. Further, some
significant relationships were also found between Na+, K+ and other
traits. The study concludes that S. oleracea can tolerate salinity
stress up to 80 mML-1. The findings can be helpful to cultivate S.
oleracea in saline areas and can also be useful to cultivate other crops
when successive cultivation of S. oleracea is carried out and Na+ is
absorbed by crop from soil.