Investigating physiological and biochemical


 Effect of salt stress on 1000 seed weight


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Muhammad Abdul Qayyum UAF 2015 Soil Env Sciences

3.4.3.5 Effect of salt stress on 1000 seed weight 
 
Seed weight of all the genotypes was significantly affected by the application of 
salinity and 1000 seed weight
was significantly reduced between control and 100 mM 
NaCl (Table 3.4.3). The maximum 1000 seed weight was recorded in control 
treatment while the minimum 1000 seed weight was noted at 100 mM NaCl. There 
was considerable variation among linseed genotypes regarding 1000 seed weight and 
the maximum 1000 seed weight
was measured in NO-303 (0.22 g) while the minimum 
1000 seed weight was noted in S-907 (0.11 g). At control, linseed genotypes did not 
show greater difference in their 1000 seed weight, however, 1000 seed weight of salt 
tolerant genotypes NO-303 (0.26 g) and 637-72 (0.25 g) was statistically significant 
from salt sensitive genotypes C-99-3-115 (0.24 g) and S-907 (0.20 g). Genotypes 
showed sharp decrease in 1000 seed weight with increasing levels of salinity and it 
decreased considerably with salt treatment. For example, 1000 seed weight decreased 
from 0.26 g to 0.22 g in NO-303 and from 0.25 g to 0.19 g in 637-72 genotypes at 100 
mM NaCl. Similarly, salt sensitive genotypes showed a drastic reduction in 1000 seed 
weight at 100 mM NaCl and it reduced to 0.14 g and 0.11 g in C-99-3-115 and S-907 
respectively (Table 3.4.3). On percent of control basis, genotypes were in the order as 
NO-303 > 637-72 > C-99-3-115 > S-907.
3.4.3.6 Effect of salt stress on oil contents of linseed 
 
Application of salt stress on linseed genotypes drastically affected the oil contents 
of all the four genotypes and percent oil contents of linseed was significantly 


135 
Table 3.4.3. Effect of different levels of salinity on 1000 seed weight and oil contents of linseed genotypes 

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