Investigating physiological and biochemical

) 
SDW (g plant
-1
) 
Control 
NaCl
(100 mM) 
NaCl
(200 mM) 
Control 
NaCl
(100 mM) 
NaCl
(200 mM) 
Control 
NaCl
(100 mM) 
NaCl
(200 mM) 
S-907 
0.80±0.15 
0.55±0.13 
(68) 
0.34±0.11 
(42) 
8.27±0.32 
5.07 ±0.28 
(61) 
3.43 ±0.24 
(41) 
0.97±0.18 
0.54±0.12 
(56) 
0.29±0.13 
(30) 
C-99-3-115 
0.84±0.14 
0.59±0.13 
(70) 
0.32±0.09 
(38) 
7.87±0.27 
4.80 ±0.42 
(61) 
2.90 ±0.21 
(37) 
0.92±0.17 
0.51±0.11 
(55) 
0.27±0.07 
(29) 
637-72 
0.90±0.16 
0.73±0.13 
(81) 
0.50±0.10 
(55) 
13.30±0.34 
11.20±0.25 
(84) 
6.55 ±0.28 
(49) 
1.11±0.12 
1.03±0.13 
(92) 
0.51±0.10 
(46) 
NO-303 
0.94±0.18 
0.80±0.16 
(86) 
0.50±0.13 
(53) 
11.61±0.26 
10.21±0.18 
(88) 
5.02 ±0.48 
(43) 
1.05±0.16 
0.85±0.10 
(81) 
0.33±0.13 
(32) 
Each value is an average of 3 replications ± SE and values in parenthesis are the percent of their respective control 

---

77 
3.2.3.5 Root fresh and dry weight (g plant
-1
) 
Application of salt decreased the root fresh and dry weight in linseed genotypes 
and this reduction was more severe in salt sensitive genotypes as compared to salt 
tolerant genotypes (Table 3.2.3). At control, genotypes did not show great difference 
and the maximum root fresh weight (RFW) was recorded in NO-303 (10.51 g) at 
control while minimum RFW was noted in C-99-3-115 (9.03 g). Similar trend of 
genotypes was observed for RDW (root dry weight) at control. Salt treatments 
decreased RFW and RDW of all the four linseed genotypes but salt sensitive genotype 
C-99-3-115 produced more root biomass 4.60 g and 4.03 g than S-907 which 
produced 4.18 g and 3.07 g RFW at 100 and 200 mM NaCl concentrations 
respectively (Table 3.2.3). On the other hand, salt tolerant genotype NO-303 produced 
comparatively higher RFW (9.39 g) and RDW (0.71 g) than 637-72 which produced 
5.54 g RFW and 0.37 g RDW at 200 mM concentration of NaCl. Overall, at both 
levels of salinity, the percent RFW and RDW was in the following order as: 
NO-303 > 637-72 > C-99-3-115 > S-907.