Greener Journal of Biological Sciences

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Greener Journal of  Biological Sciences Vol. 7 (6), pp. 050-059, November 2017.

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Research Articles

Manuscript Number: 102117156



Protein Contents of Maize Varieties (QPM and Normal Maize) as Influenced by Nitrogen and Micronutrients


Olowookere B.T.1, Uyovbisere E.O.2, Malgwi W.B.2, and Oyerinde A.A. 3*


1 Department of Soil Science, University of Abuja, Abuja

2 Department of Soil Science, Ahmadu Bello University, Zaria

3Department of Crop Protection, University of Abuja, Abuja


Field experiments were conducted in 2008 and 2009 in the Guinea savanna ecology of Nigeria to investigate the protein content of maize varieties (QPM and normal varieties) as influenced by nitrogen fertilizer and micronutrients. The treatments were four rates of inorganic fertilizer N (0, 50, 100, 150kgNha-1) and two rates of cocktail micronutrient mixtures. These were tested in a randomized complete block design with three replications and the treatments were factorially combined. The results from the study revealed that micronutrients application increased the lysine and tryptophan content of the QPM varieties since values were increased by it. The result showed that addition of nitrogen fertilizer and micronutrients increased the crude protein content of the maize varieties and so also with micronutrients addition the QPM varieties differed significantly from each other with respect to lysine and tryptophan contents (p< 0.05).It can be inferred from this that though normal maize and QPM varieties could be exposed to the same environmental conditions and take up same amounts of micronutrients, the QPM varieties have genetic capacity to synthesize high levels of amino acids and so would have nutritionally higher quality grains. Plant breeders therefore may found this attribute useful in genetic manipulation and cultivar development for enhance protein biochemical components.


Keywords: Normal Maize, Quality Protein Maize, Protein Content, Guinea Savanna

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Adhikary, B. H., Shrestha, J. and Baral, B. R. (2010).  Effects of micronutrients on growth and productivity of maize in acidic soil. International Research Journal of Applied and Basic Sciences. 1(1):8-15.


Aduku, A. O. (2005). Tropical Feedstuffs Analysis Table, Department of Animal Science, A.B.U.  Zaria, Nigeria.


Berg, J. M., Tymoczko, M. and Clarke, N.D. (2001). Biochemistry. W.H. Freeman and company, 41 Madison Avenue, New York. (5th Edition).


Bhatnajar, S., Betran, F.J. and Transue, D.K. (2003). Agronomic performance, aflatoxin accumulation and protein quality of subtropical and tropical QPM hybrids in southern U.S. Maydica 48: 113-124. 


Bishnu, H. A. Jiban, S. and Bandhu R. B. (2010). Effects of micronutrients on growth and productivity of maize in acidic soil. International Research Journal of Applied and Basic Sciences. 1 (1) 8-15.


Biston, R.S., Kodrzyeki, R. and Laikufis, B.A. (1996). olecuar Biology of Seed Storage Proteins and lectins (eds). Shannon, L.M. and Crispeels, M.J.) An. Soc. Plant Physiologists, Rocksville Maryland, 117 – 126.


Gil, J.L. and Fick, W.F. (2001). Soil N mineralization of mixtures of eastern Gama grass with alfalfa and red clover. Agron J. 93: 902 – 910.


Moberg, J.P. and Esu, I. E. (1989). Characteristic and composition of soils of Northern Nigeria.  Report submitted to the IAR, ABU, Zaria.


Obi, J.U. (1982).  Application of the 2, 4, 6 – Trinitro benzene 1-Silfonic acid (TNBS) method for determination of available lysine in maize seed.  Agricultural and Biological Chem. 46: 1520.


Ogunwole, J.O. (2000). The macro- environment of cereal based intercrop at Samaru, northern Nigeria. Ph.D Thesis

Ahmadu Bello University, Samaru- Zaria.


Okai, D.B., Osei, S.A., Haag, W.L and Dzah, B.D. (2005). The role of Quality Protein Maize (QPM) in pig nutrition and production. Paper presented at the Sasakawa Global 2000 training workshop on QPM, Development and seed delivery system, Kumasi, Ghana 4th – 5th August 2005.


Osei, S.A., Dei, K.K., and Tuah, A.K. (1999). Evaluation of quality protein maize as a feed ingredient for layer pullet.  Journal of Animal Feed Science 8:181-189.


Prasanna, R.M.; Vassal, S.K., Kassahum, B. and Sin.N. (2001). Review Article on Quality Protein Maize. Current Science 81:0:1308-1319.


Pixley, K.V. and Bjarnason, M.S. (1993). Combining ability for yield and protein quality among modified endosperm opaque-2 tropical maize inbreds. Crop Science 33: 1229-1234.


SAS (2005). Statistical Analytical system. SAS Users guide. Statistics. Version 5.SAS Institute Cary, NC.


USDA Soil Survey Staff (2006). Key to soil taxonomy. United State Department of Agriculture, Natural resources Conservation Services, 10th Edition, pp.331.


Vassal, S.K. (2006): The quality protein maize story.  Food and nutritional Bulletin, 21 (4): 45-50.


Whitehouse, R.N.H. (1971). Variation in Protein and amino acid levels in barley in Jones, J.G.W. (1973). The biological efficiency of protein production. The Cambridge University Press, New York.

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