QueryDate : 2016-12-24
Cites : 1
| ORIGINAL
ARTICLE |
| | | Data source : Google Scholar QueryDate : 2016-12-24 Cites : 1 |
Soil
salinity is a serious environmental problem that has negative effect on
plant growth, production and photosynthesis. Fresh and dry plant
weights decreases with salinity treatments. The very important role of
salicylic acid (SA) in response to different stress and modification
and decline damages due to stresses has established in different
studies. In this research, effect of grain soaking presowing in (0, 1,
1.5, 2 and 5 mM) of salicylic acid (SA) and NaCl (0, 4, 8 and 12 dsm-1)
on canola (Brassica napus L)
was studied. Increasing of NaCl level reduced the germination
percentage(GP), Average velocity of germination (AVG) and growth
parameters of 15-day old seedlings in compared to control plants.
pretreated of SA in content 1mM significantly increased the germination
percentage, and in contents more than of 1mM reduced the germination
percentage in seeds under salinity stress. SA in content 1mM increased
RWC, root and shoot of fresh weight in the stressed seedlings.
Increasing of NaCl level increased Electrolyte leakage and MDA content
in the stress seedling. electrolyte leakage and MDA content were
markedly reduced under salt stress with SA 1mM than without. It was
concluded that SA could be used as a potential growth regulator to
improve salt tolerance in canola. Our observations indicate that,
although SA is not essential for germination under normal growth
conditions, it plays a promotive role in seed germination under high salinity by reducing oxidative damage.
