Correlation Coefficients between Grain Yield and Other Characters of Maize (Zee mays L.) Grown at Mubi in Northern Savanna, Nigeria
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 2
Abstract
A field trial was conducted in 2011 and 2012 rainy seasons at Mubi, in the northern Guinea Savanna ecology of Nigeria. The trial was laid out in a split-plot design with two maize varieties (OBA- 98 and OBA SUPER) in the main plots. Nine timings of nitrogen application plus zero fertilization as a control were assigned to the sub-plots. The correlation between grain yield and the various groundnut characters showed that throughout the study; maize grain yield correlated positive with plant height, cob length, cob diameter and 100 grains weight; but related negatively with days to 50% tasseling.The combined data of the two years showed that the correlation of grain yield with these characters in order given above were (r=0.4775**, 0.6567**, 0.5559** 0.6192** and -0.1891* respectively). The four characters that correlated positively to grain yield also associated positively to each other throughout the study. The objective of the trial was assessing the appropriate tone of nitrogen application to maize.
Authors and Affiliations
Yohanna Mamma Kwaga
Keywords
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