INTERACTIVE EFFECTS OF SALINITY AND VITAMIN B6 ON SOME METABOLIC PROCESSES IN TWO BROAD BEAN LINES

Abstract

Salinity adversely affected the photosynthetic pigment biosynthesis and carbohydrate fractions in two broad bean lines, 67 and 13. The accumulation of proline and other amino acids was also altered. The interactive effects of salinity and exogenous treatments with vitamin pyridoxine (B6) on these parameters were also tested. These treatments included soaking the seeds or spraying the shoots with vitamin solution. The vitamin treatments generally counteracted the adverse effects of salinity. The importance of these treatments to the salinity tolerance of broad bean lines is discussed.