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Volume 10
Journal of Earth Science & Climatic Change
Page 26
Climate Congress 2019
May 10-11, 2019
conferenceseries
.com
May 10-11, 2019 Bangkok, Thailand
8
th
World Climate Congress
Bualuang Faiyue et al., J Earth Sci Clim Change 2019, Volume 10
DOI: 10.4172/2157-7617-C2-059
Ammonium nitrate pretreatment increased salt tolerance of Thai jasmine rice
Bualuang Faiyue
1
, Thanchanok Kraipitukkul
2
, Doungsuree Saetae
2
and Poonyaporn Apithanawit
2
1
Environmental Research Institute-Chulalongkorn University, Thailand
2
Mahidol Wittayanusorn School, Thailand
S
oil salinity is one of abiotic problems affecting rice (Oryza sativa L.) growth and productivity. The objective
of this research was to investigate the effect of ammonium nitrate (NH
4
NO
3
) pretreatment on growth and
ion accumulations in Thai jasmine or Khao Dawk Mali 105 (KDML105) rice seedlings under a salt-stress
condition. Rice seedlings were pretreated with 0 or 3 mM NH
4
NO
3
for 1 week when they were 21 days old.
Then, seedlings were salinised with 0 or 50 mM NaCl for 2 weeks. The results showed that rice seedlings
pretreated with 3 mMNH
4
NO
3
before being exposed to salt stress significantly increased root dry weight and
shoot dry weight compared with non-NH
4
NO
3
pretreated seedlings. Rice seedlings pretreated with 3 mM
NH
4
NO
3
also significantly decreased Na+ and K
+
concentrations in shoots and roots, but Na
+
/K
+
ratio was
not affected. It can be concluded that NH4NO3 pretreatment potentially increased salt tolerance in rice via
the reduction of root- and shoot Na
+
concentrations.
Biography
Bualuang Faiyue has completed his PhD from University of Sussex, Brighton, UK. He focuses on screening and improving salt-tolerant abilities
in rice. His research is based on the study of an apoplastic pathway or bypass flow of sodium ion as this pathway is important of sodium uptake
into the rice plants under salt stress. After graduation, he has worked as a Biology Teacher at Mahidol Wittayanusorn School, Nakhon Pathom,
Thailand. Presently he is a Researcher at Environmental Research Institute, Chulalongkorn University, Bangkok, Thailand.
Bualuang.F@chula.ac.th