Table 4 Correlations analysis among maize yield and the parameters of grain and starch granule of superior and inferior grain.
Grain morphology | Yield | S-Grain density | S-1000-grain weight | S-Length | S-Width | S-Thickness | S-geometric volume of grain | S-volume of grain | S-Surface area | S-Volume | I-Grain density | I-1000-grain weight | I-Length | I-Width | I-Thickness | I-geometric volume of grain | I-volume of grain | I-Surface area |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
S-Grain density | 0.77** | 1 | ||||||||||||||||
S-1000-grain weight | 0.76** | 0.29 | 1 | |||||||||||||||
S-Length | 0.90** | 0.71** | 0.69** | 1 | ||||||||||||||
S-Width | 0.85** | 0.55* | 0.86** | 0.82** | 1 | |||||||||||||
S-Thickness | 0.19 | −0.28 | 0.63** | 0.28 | 0.4 | 1 | ||||||||||||
S-geometric volume of grain | 0.85** | 0.53* | 0.86** | 0.92** | 0.96** | 0.52* | 1 | |||||||||||
S-volume of grain | 0.65** | 0.12 | 0.98** | 0.59** | 0.79** | 0.69** | 0.80** | 1 | ||||||||||
S-Surface area | 0.51* | 0.55** | 0.38 | 0.56** | 0.62** | 0.35 | 0.64** | 0.28 | 1 | |||||||||
S-Volume | 0.54* | 0.68** | 0.38 | 0.59** | 0.68** | 0.09 | 0.64** | 0.27 | 0.80** | 1 | ||||||||
I-Grain density | 0.77** | 0.88** | 0.35 | 0.83** | 0.60** | 0.01 | 0.68** | 0.2 | 0.67** | 0.71** | 1 | |||||||
I-1000-grain weight | 0.82** | 0.43 | 0.91** | 0.76** | 0.90** | 0.57** | 0.90** | 0.86** | 0.55* | 0.45* | 0.53* | 1 | ||||||
I-Length | 0.90** | 0.65** | 0.83** | 0.87** | 0.86** | 0.41 | 0.88** | 0.74** | 0.58** | 0.58** | 0.67** | 0.87** | 1 | |||||
I-Width | 0.69** | 0.45* | 0.82** | 0.72** | 0.94** | 0.50* | 0.91** | 0.75** | 0.69** | 0.71** | 0.53* | 0.84** | 0.76** | 1 | ||||
I-Thickness | 0.45* | 0 | 0.76** | 0.42 | 0.69** | 0.48* | 0.62** | 0.79** | 0.22 | 0.24 | 0 | 0.64** | 0.61** | 0.64** | 1 | |||
I-geometric volume of grain | 0.82** | 0.51* | 0.91** | 0.84** | 0.96** | 0.53* | 0.96** | 0.84** | 0.63** | 0.63** | 0.57** | 0.91** | 0.92** | 0.93** | 0.74** | 1 | ||
I-volume of grain | 0.74** | 0.29 | 0.92** | 0.66** | 0.85** | 0.62** | 0.83** | 0.89** | 0.45* | 0.33 | 0.37 | 0.98** | 0.82** | 0.79** | 0.69** | 0.87** | 1 | |
I-Surface area | 0.07 | 0.08 | 0.01 | 0.03 | 0.12 | 0.05 | 0.07 | 0.01 | 0.46* | 0.29 | 0.11 | 0.15 | 0.13 | 0.02 | 0.06 | 0.05 | 0.15 | 1 |
I-Volume | 0.4 | 0.44* | 0.17 | 0.46* | 0.29 | −0.1 | 0.31 | 0.13 | 0.34 | 0.36 | 0.43 | 0.25 | 0.42 | 0.09 | 0.14 | 0.25 | 0.2 | 0.63** |