Research Article

Bioethanol Production from Stalk Residues of Chiquere and Gebabe Varieties of Sweet Sorghum

Table 4

Analysis of variance (ANOVA) of Chiquere and Gebabe variety ethanol yield of sweet sorghum.

Chiquere varietyGebabe variety
SourcesSum of squaresDegree of freedomMean squaresF values value ( > F)SourcesSum of squaresDegree of freedomMean squaresF values value ( > F)

Model7.8190.8773.59<0.0001Model2.2490.58120.30<0.0001

A, yeast inoculum size0.4210.4235.90<0.0001A, yeast inoculum size0.2810.2858.160.0001

B, pH6.125E − 00416.125E − 0040.0520.9285B, pH0.1110.1121.280.0023

C, dilution3.4213.42290.02<0.0001C, dilution3.9213.92810.64<0.0001

AB0.09610.0968.15<0.0001AB0.04810.04810.010.0158

AC0.7910.7967.19<0.0001AC0.5310.53110.20<0.0001

BC0.03810.0383.230.0012BC0.01010.0102.070.1936

A20.4410.4437.43<0.0001A26.737E − 00316.737E − 0031.390.2764

B21.2811.28108.53<0.0001B20.02410.0244.900.0625

C21.0211.0286.19<0.0001C20.3210.3265.85<0.0001

Residual0.08370.012--Residual0.03474.836E − 003--

Lack of fit0.07530.02512.420.07899Lack of fit5.85E − 00331.950E − 0030.280.8390

Pure error8.000E − 00342.00E − 003--Pure error0.02847.000E − 003--

Cor total7.8916---Cor total5.2716---

E = 10X, where X is the power of decimal number.