ia (ft 20 21 



05 



P:o. L Equivalent percentage of Na, K, and Eb in plants cultivated in golution Ij 



containing these cations in equiralent amounts. The plants are arranged according to( 

 increasing Na content. 



1. Fagopyrum 12. Papaver 



2. Zea 13. Lactuca - 



3. Helianthna 14. FXaniago lanceolata 



4. Chenopodium 15. Melilotus 



5. Salsola 16. Vicia 



6. Pisum 17. Atriplez litoraU 



7. Nicotians 18. Sinapis 



8. Solanum '19. Salicomia 



9. Spinacia 20. Plantago maritima 

 10. Avena 21. Atriplez hortewe 



"U. Aster 



Textfigure 32. — Illustrating selective ab- 

 sorption of different cations by different spe- 

 cies of plants growing in same nutrient me- 

 dium. (From COLLANDER, 1941). 



