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TABLE ON GRAIN YIELD DATA (t/ha) OF LOWLAND RICE AS
INFLUENCED BY VARYING RATES OF NITROGEN FERTILIZER

B L O C K Mean Signifi LSD VALUE
Levels of 1 2 3 4 TOT MEAN differe cance 5% 1%
N AL nce level leve
fertilizer (obser l
ved)
0(control) 2.1 2.8 2.7 2.9 10.5 2.63 - - 0.621 0.8
71
50 3.2 3.4 4.1 4.2 14.9 3.73 1.1 ** 0.621 0.8
71
60 4.9 4.6 4.6 5.0 19.3 4.83 1.1 ** 0.621 0.8
71
90 5.3 5.2 5.1 6.1 21.7 5.43 0.6 ns 0.621 0.8
71
120 3.4 4.6 4.6 3.8 16.5 4.13 1.3 ** 0.621 0.8
71
BLOCK
TOTAL

ANALYSIS OF VARIANCE TABLE of grain yield data of the above table

F - V A L U E
Source of Degrees Sum of Mean Tabular
Variance of Squares squares Computed 5% 1%
Freedom
Block 3 1.12 0.373 2.29ns 3.49 5.95
Treatment 4 19.35 4.590 28.16** 3.28 5.41
Expt’l 12 1.96 0.163
Error
Total 19 21.43

CV = 9.73% ns = not significant ** Significant at 1% level

PAIR COMPARISON OF TREATMENT MEANS BY

DMRT (DUNCAN’S MULTIPLE RANGE TEST )

Different Statistical Tests used in differentiating treatment means
when the F-tests in the ANOVA is significant

 LSD Test –- Least Significant Test
 Scheffe’s Test