Evaluation of Grain Discoloration and Germination Energy of Maize Varieties Harvested and Stored in Selected States of South-Eastern Nigeria

G. I. ENE and J. C. OKAKA

Department of Food Science and Technology, ESUT, Enugu.

Abstract: 

Quality indices of discoloration and germination energy were evaluated in local white and yellow maize varieties obtained from different harvesting seasons in selected States of South Eastern Nigeria viz: Enugu, Anambra and Ebonyi and compared with approved international standards. Results showed that the grains from all the locations and harvesting seasons were of good quality rating 2 or (1 - 10% discoloration) and poor quality grains of rating 3 or (11-25% discolouration). The germination energy decreased with increase in storage time up to six months irrespective of the storage method used and also- in late maize harvests of October/November (70.9, - 73.0%) when compared to those harvested in the months of April/May and July/August 92. 4 - 93.8%). There was no significant difference (P>0.05) between the germination energy of maize varieties harvested in April/May and July/August in all the locations studied but there was significant difference (P<0.05) between the germination energy of maize varieties harvested in the months of October/November and the rest of the harvests, irrespective of the location and storage method used. The April/May and July/August maize harvests in all the locations met the approved standards for germination energy.

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