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2012 (Vol. 4, Issue: 1)
Article Information:

The Effect of Blocking on the Experimental Precision of Tomato Yield

Adam Taiye Mudi and Aliyu Usman
Corresponding Author:  Adam Taiye Mudi 

Key words:  CRD: completely randomized design, ERE: estimated relative efficiency, MSB,: mean square for blocking effect, MSE : error mean square, RCBD: randomized complete block design, SSB,: sum of squares for blocking effect, SSE,: error sum of squares
Vol. 4 , (1): 10-13
Submitted Accepted Published
May 27, 2011 November 26, 2011 February 25, 2012

Past experiments on the effect of fertilizer levels on tomato yield have frequentlyused Randomized Complete Blocked Designs (RCBD), even though the experimental areas seem relatively uniform with regard to external variables. Consequently, Completely Randomized Designs (CRD) may have had better precision with which to estimate treatmenteffects compared with RCBD. The objective of this study wasto Estimate the Relative Efficiency (ERE) of a RCBD compared with a CRD from the data sets obtained from Kwara State Agricultural Development Project, Nigeria for three farm trials with the aim of estimating the effect with less effort. The result of the analysis showed that ERE (RCBD to CRD) are (1.064, 0.9164 and 0.9068) respectively for the three trials. Hence blocking is inefficient for future similar experiment under the same conditions.
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  Cite this Reference:
Adam Taiye Mudi and Aliyu Usman, 2012. The Effect of Blocking on the Experimental Precision of Tomato Yield.  Research Journal of Mathematics and Statistics, 4(1): 10-13.
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ISSN (Online):  2040-7505
ISSN (Print):   2042-2024
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