Investigating physiological and biochemical

3.3.3.7 Total soluble sugars (TSS) and total proteins
Among different organic osmotica, soluble sugars contribute up to 50% of total 
osmotic potential in glycophytes under salt stress conditions (Cram, 1976). Proteins 
which accumulate in plants under salinity stress may provide a storage form of 
nitrogen that is re-utilized when stress is over (Singh et al., 1987) and are helpful in 
organic adjustment. Total soluble sugar and total proteins of all the genotypes was 
significantly affected by the application of salts and their concentration was 
significantly increased under saline conditions (Table 3.3.7). Response of linseed 
genotypes also differed significantly for their total soluble sugars and protein contents 
and the maximum TSS (8.70 and 8.73 mg g
-1
FW) and total proteins (10.90 and 10.83 
mg g
-1
FW) were recorded in NO-303 and 637-72 genotypes under control conditions 
as compared to S-907 in which minimum concentration of TSS (8.30 mg g
-1
FW) and 
total protein (10.67 mg g
-1
FW) was noted under control treatment. It was also 
observed that linseed genotypes did not show great difference in TSS and TP under 
non saline conditions but showed sharp increase in their TSS and total proteins with 
increasing NaCl salinity. At 100 mM NaCl, TSS concentration increased to 9.63 mg 

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Table 3.3.7. Effect of salinity on total soluble sugar and total protein concentration of salt sensitive and salt tolerant genotypes of
linseed 
 
Genotypes 
Total soluble sugars (mg g
-1
 FW) 
Total protein (mg g
-1
 FW) 
Control 
NaCl
(100 mM) 
NaCl
(200 mM) 
Control