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Table 6 Combined analysis and additive main effects and multiplicative interaction (AMMI) analysis of variance for selected quality traits in nine sweetpotato genotypes across nine environments

From: Genotypic and environmental factors influence the proximate composition and quality attributes of sweetpotato (Ipomoea batatas L.)

Effect

Df.

DMC

AC

TPC

CF

TSS

Genotype

9

694.61***

15.42***

23.90***

5.43***

75.29***

Environ.

8

414.98***

18.82***

113.57***

21.24***

117.20***

Genotype*environ.

57

39.85***

2.02***

3.98***

3.84***

12.49***

Residuals

161

6.66

0.34

1.52

1.24

2.33

PC1

 

128.4***(64.8%)

4.82***(53.8%)

10.09***(53.9%)

6.03***(34.3%)

23.43***(43.1%)

PC2

 

37.3***(16.5%)

3.10***(30.3%)

4.57***(21.4%)

6.26***(31.2%)

16.86***(27.1%)

  1. df degrees of freedom, AC: DMC dry matter content, ash content, CF crude fiber, TPC total protein content, Environ. environment
  2. The values correspond to the mean square in the evaluated traits. *** (p < 0.0001), ** (p < 0.001), * (p < 0.01)