About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in AJ

  1. Vol. 62 No. 4, p. 478-481
     
    Received: Nov 3, 1969


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2134/agronj1970.00021962006200040013x

Na and K Interactions in Increasing the Salt Tolerance of Atriplex halimus L.: I. Yield Characteristics and Osmotic Potential

  1. Ahmad Mozafar,
  2. J. R. Goodin and
  3. J. J. Oertli2

Abstract

Abstract

Growth of Atriplex halimus on four different saline media was studied. Growth was strongly stimulated by low levels of all saline media and reached a maximum at different external osmotic potentials for different salinity treatments. Plants grew much better on saline media containing equal parts of NaCl and KCl, and seemed to tolerate much lower external water potential than plants growing on NaCl, KCl, or on different concentrations of Hoagland solutions. In all the four different salinity treatments, osmotic potential of the expressed leaf sap remained nearly constant over all the external osmotic potentials. Although salinity did not change final size of the leaves, the fresh weight and dry weight of a given area of the leaves changed tremendously, depending upon the osmotic substrate. The effect of the kind of osmotically active salt present in the saline medium oll the growth of A. halimus indicates that growth reduction under saline media is not solely a function of its osmotic potential. It appears that overall growth effects can best be described as a combination of stimulatory and inhibitory effects.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .