Abstract:
Salinity has a range of negative effects on germination and early seedling growth. Lipo-chitooligosaccharide are organic compounds, which are produced by Rhizobium and play an important
role in growth, development and yield of crops and are becoming popular in the field of agriculture. In
order to study the effect of priming with Lipo-chitooligosaccharide (LCO) on germination and growth of
corn under saline conditions, a completely randomized design experiment in factorial arrangement was
conducted. Treatments comprised of 5 levels of salinity (0, 2, 4, 6 and 8 dSirr1) and two priming (priming
with LCO and non priming). Results showed that the salinity and priming had significantceffects (p<0.05)
on stress tolerance indices of shoot length, root length stress, root volume, root dry weight and fresh
leaves of maize. The increase in salinity up to 8 dSm^negatively influenced all physiological indices and
the amounts of reduction for the mentioned traits were 31, 46, 83 and 49 %, respectively, as compared
with the control. Seed priming with LCO compensated the negative effects of salinity on stress indices and
all the physiological indices were positively responded to the treatment of LCO priming. Results showed
that seed priming with LCO can be considered as
salinity.
