Ikuli Et Al

Ikuli et al

Greener Journal of Agricultural Sciences Vol. 7 (4), pp. 105-111, June 2017.

 ISSN: 2276-7770 

Research Article

Manuscript Number: 061117073


(DOI: http://doi.org/10.15580/GJAS.2017.4.061117073)

 

Comparative Study of some Cultivars
of Rice (Oryza sativa L.) for Iron Fe
Biofortification under Saline Condition

 

1*Ikuli
Josiah M., 1Akonye Love A. and 2Efisue Andrew A.

 

1*Department
of Plant Science and Biotechnology, University of Port Harcourt.

1Department
of Plant Science and Biotechnology, University of Port Harcourt.

2Crop and
Soil Science Department, University of Port Harcourt.


Abstract

Rice is a stable food crop in
Nigeria and greater percentage of the world. Rice is an important cereal crop
of the world and nutritionally potential food crop. Iron plays a vital role in
human life. Such as in production of red blood cells, transportation of oxygen
around the body, strong immune system and a component structure of the human
haemoglobin. It is also involved in the conversion of
blood sugar to energy.
The study screened some cultivars of Oryza sativa for their abilities to retain Iron (Fe), their response to Fe
biofortification and their adaptabilities and tolerance capacities for Fe
biofortification under saline condition. Five (5) cultivars of lowland rice
namely; FARO 44, UPIA 3, FARO 52, FARO 57 and IWA 4 were used for this study.
One hundred (100µg) of Fe from FeNH4.(SO4).12H2O
was applied through foliar application. The Fe increase available for human
body use was comparatively higher in the fortified than unfortified treatment,
especially those planted in the non saline treated soil. Under saline
condition, the Fe increase in fortified FARO 44 was less than in the
unfortified by approximately nine percent (9.29%). UPIA 3 was higher by 20.48%,
FARO 52 higher by 14.43%, FARO 57 higher by 22.83% and IWA 4 was higher by
27.08%. In the non saline fortified, FARO 44 was higher than the unfortified by
71.9%, UPIA 3 by 20.26%, FARO 52 by 30.71%, FARO 57 was higher by 217.21% and
IWA 4 increased by 6.95%.  The study
revealed that FARO 57 was more sensitive to salinity in Fe biofortification and
UPIA 3 was more suitable for Fe biofortification under saline condition among
the cultivars used for the study. UPIA 3 is the best because it was more stable
in both saline and non saline, fortified and unfortified conditions, high
yielding and was not infected or being susceptible to any disease. The study also
showed that FARO 57 in non saline soil had the best ability to retain Fe in
iron biofortification. But unfortunately, FARO 57 has lodging mechanism that
affected its yield.To eliminate micronutrients malnutrition and improve food
security, there should be integration of multidiscipline and biofortification
employed as a tool to produce cultivars of high yielding and rich in essential
nutrients.

 

Keywords: Fortified saline, Fe
solution, Biofortification, rice and cultivars.

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