Journal of Zhejiang Agricultural Sciences ›› 2024, Vol. 65 ›› Issue (9): 2050-2054.DOI: 10.16178/j.issn.0528-9017.20230656
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Received:
2023-06-19
Online:
2024-09-11
Published:
2024-09-11
CLC Number:
ZHAN Fuyang. Correlation and path analysis of agronomic traits of introduced maize varieties[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(9): 2050-2054.
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指标 | 株高/cm | 穗位高/cm | 穗长/cm | 穗粗/cm | 秃尖长/cm | 穗行数 | 行粒数 | 百粒重/g | 667 m2产量/kg |
---|---|---|---|---|---|---|---|---|---|
最小值 | 132.333 | 41.000 | 13.050 | 8.967 | 0 | 10.000 | 16.000 | 4.877 | 168.080 |
最大值 | 202.667 | 96.333 | 21.033 | 14.667 | 5.467 | 16.000 | 37.000 | 11.100 | 484.320 |
平均值 | 167.360 | 68.632 | 16.842 | 14.010 | 2.132 | 12.736 | 29.979 | 8.121 | 356.180 |
标准差 | 14.534 | 11.618 | 1.656 | 6.307 | 1.223 | 1.029 | 3.963 | 1.353 | 29.341 |
变异系数/% | 8.7 | 16.9 | 9.8 | 45.0 | 57.4 | 8.1 | 13.2 | 16.7 | 20.6 |
Table 1 Statistics of yield and main agronomic traits of maize
指标 | 株高/cm | 穗位高/cm | 穗长/cm | 穗粗/cm | 秃尖长/cm | 穗行数 | 行粒数 | 百粒重/g | 667 m2产量/kg |
---|---|---|---|---|---|---|---|---|---|
最小值 | 132.333 | 41.000 | 13.050 | 8.967 | 0 | 10.000 | 16.000 | 4.877 | 168.080 |
最大值 | 202.667 | 96.333 | 21.033 | 14.667 | 5.467 | 16.000 | 37.000 | 11.100 | 484.320 |
平均值 | 167.360 | 68.632 | 16.842 | 14.010 | 2.132 | 12.736 | 29.979 | 8.121 | 356.180 |
标准差 | 14.534 | 11.618 | 1.656 | 6.307 | 1.223 | 1.029 | 3.963 | 1.353 | 29.341 |
变异系数/% | 8.7 | 16.9 | 9.8 | 45.0 | 57.4 | 8.1 | 13.2 | 16.7 | 20.6 |
指标 | 株高 | 穗位高 | 穗长 | 穗粗 | 秃尖长 | 穗行数 | 行粒数 | 百粒重 | 产量 |
---|---|---|---|---|---|---|---|---|---|
株高 | 0.397 4** | -0.034 5 | -0.024 4 | 0.002 5 | -0.026 0 | 0.037 5** | -0.135 5 | -0.039 0 | |
穗位高 | 0.397 4** | 0.376 8** | 0.032 1 | -0.174 9 | 0.212 8* | 0.382 2* | 0.094 9** | 0.493 1** | |
穗长 | -0.034 5 | 0.376 8** | 0.386 4* | 0.042 8 | 0.167 5 | 0.354 9 | 0.431 5** | 0.690 0** | |
穗粗 | -0.024 4 | 0.032 1 | 0.386 4* | 0.059 7 | 0.030 8 | 0.104 0 | 0.409 9 | 0.377 2 | |
秃尖长 | 0.002 5 | -0.174 9 | 0.042 8 | 0.059 7 | 0.018 5 | -0.466 0 | -0.338 0 | -0.385 0** | |
穗行数 | -0.026 0 | 0.212 8* | 0.167 5 | 0.030 8 | 0.018 5 | 0.085 0 | -0.022 2 | 0.341 6* | |
行粒数 | 0.037 5 | 0.382 2** | 0.354 9* | 0.104 0 | -0.466 0** | 0.085 0 | 0.064 9 | 0.644 2 | |
百粒重 | -0.135 5 | 0.094 9 | 0.431 5** | 0.409 9** | -0.338 0* | -0.022 2 | 0.064 9 | 0.600 3** | |
产量 | -0.039 0 | 0.493 1** | 0.690.0** | 0.377 2 | -0.385 0** | 0.341 6* | 0.644 2** | 0.600 3** |
Table 2 Linear correlation analysis between maize yield and main agronomic traits
指标 | 株高 | 穗位高 | 穗长 | 穗粗 | 秃尖长 | 穗行数 | 行粒数 | 百粒重 | 产量 |
---|---|---|---|---|---|---|---|---|---|
株高 | 0.397 4** | -0.034 5 | -0.024 4 | 0.002 5 | -0.026 0 | 0.037 5** | -0.135 5 | -0.039 0 | |
穗位高 | 0.397 4** | 0.376 8** | 0.032 1 | -0.174 9 | 0.212 8* | 0.382 2* | 0.094 9** | 0.493 1** | |
穗长 | -0.034 5 | 0.376 8** | 0.386 4* | 0.042 8 | 0.167 5 | 0.354 9 | 0.431 5** | 0.690 0** | |
穗粗 | -0.024 4 | 0.032 1 | 0.386 4* | 0.059 7 | 0.030 8 | 0.104 0 | 0.409 9 | 0.377 2 | |
秃尖长 | 0.002 5 | -0.174 9 | 0.042 8 | 0.059 7 | 0.018 5 | -0.466 0 | -0.338 0 | -0.385 0** | |
穗行数 | -0.026 0 | 0.212 8* | 0.167 5 | 0.030 8 | 0.018 5 | 0.085 0 | -0.022 2 | 0.341 6* | |
行粒数 | 0.037 5 | 0.382 2** | 0.354 9* | 0.104 0 | -0.466 0** | 0.085 0 | 0.064 9 | 0.644 2 | |
百粒重 | -0.135 5 | 0.094 9 | 0.431 5** | 0.409 9** | -0.338 0* | -0.022 2 | 0.064 9 | 0.600 3** | |
产量 | -0.039 0 | 0.493 1** | 0.690.0** | 0.377 2 | -0.385 0** | 0.341 6* | 0.644 2** | 0.600 3** |
性状 | 株高 | 穗位高 | 穗长 | 穗粗 | 秃尖长 | 穗行数 | 行粒数 | 百粒重 |
---|---|---|---|---|---|---|---|---|
偏相关 | -0.120 1 | 0.346 4 | 0.427 3 | 0.145 3 | -0.058 0 | 0.566 7 | 0.684 4 | 0.665 4 |
P | 0.454 2 | 0.026 4 | 0.005 3 | 0.364 6 | 0.718 5 | 0.000 1 | 0.000 1 | 0.000 1 |
Table 3 Partial correlation analysis between maize yield and main agronomic traits
性状 | 株高 | 穗位高 | 穗长 | 穗粗 | 秃尖长 | 穗行数 | 行粒数 | 百粒重 |
---|---|---|---|---|---|---|---|---|
偏相关 | -0.120 1 | 0.346 4 | 0.427 3 | 0.145 3 | -0.058 0 | 0.566 7 | 0.684 4 | 0.665 4 |
P | 0.454 2 | 0.026 4 | 0.005 3 | 0.364 6 | 0.718 5 | 0.000 1 | 0.000 1 | 0.000 1 |
变量 | 回归系数 | 标准系数 | 标准误 | t值 | P值 |
---|---|---|---|---|---|
常数 | -198.851 0 | 35.744 8 | -5.563 1 | 0.000 1 | |
株高 | -0.093 0 | -0.046 1 | 0.123 1 | -0.755 7 | 0.454 2 |
穗位高 | 0.405 3 | 0.160 5 | 0.175 8 | 2.306 1 | 0.026 4 |
穗长 | 4.054 6 | 0.228 8 | 1.373 6 | 2.951 7 | 0.005 3 |
穗粗 | 0.267 6 | 0.057 5 | 0.291 8 | 0.917 0 | 0.364 6 |
秃尖长 | -0.659 5 | -0.027 5 | 1.816 6 | -0.363 1 | 0.718 5 |
穗行数 | 6.812 1 | 0.238 9 | 1.585 8 | 4.295 7 | 0.000 1 |
行粒数 | 3.233 8 | 0.436 8 | 0.551 6 | 5.862 2 | 0.000 1 |
百粒重 | 9.202 2 | 0.424 2 | 1.653 3 | 5.566 1 | 0.000 1 |
Table 4 Regression analysis between maize yield and main agronomic traits
变量 | 回归系数 | 标准系数 | 标准误 | t值 | P值 |
---|---|---|---|---|---|
常数 | -198.851 0 | 35.744 8 | -5.563 1 | 0.000 1 | |
株高 | -0.093 0 | -0.046 1 | 0.123 1 | -0.755 7 | 0.454 2 |
穗位高 | 0.405 3 | 0.160 5 | 0.175 8 | 2.306 1 | 0.026 4 |
穗长 | 4.054 6 | 0.228 8 | 1.373 6 | 2.951 7 | 0.005 3 |
穗粗 | 0.267 6 | 0.057 5 | 0.291 8 | 0.917 0 | 0.364 6 |
秃尖长 | -0.659 5 | -0.027 5 | 1.816 6 | -0.363 1 | 0.718 5 |
穗行数 | 6.812 1 | 0.238 9 | 1.585 8 | 4.295 7 | 0.000 1 |
行粒数 | 3.233 8 | 0.436 8 | 0.551 6 | 5.862 2 | 0.000 1 |
百粒重 | 9.202 2 | 0.424 2 | 1.653 3 | 5.566 1 | 0.000 1 |
性状 | 直接通径系数 | 间接通径系数 | |||||||
---|---|---|---|---|---|---|---|---|---|
x1-y | x2-y | x3-y | x4-y | x5-y | x6-y | x7-y | x8-y | ||
株高 | -0.046 1 | 0.063 8 | -0.007 9 | -0.001 4 | -0.000 1 | -0.006 2 | 0.016 4 | -0.057 5 | |
穗位高 | 0.160 5 | -0.018 3 | 0.086 2 | 0.001 8 | 0.004 8 | 0.050 9 | 0.167 0 | 0.040 3 | |
穗长 | 0.228 8 | 0.001 6 | 0.060 5 | 0.022 2 | -0.001 2 | 0.040 0 | 0.155 0 | 0.183 1 | |
穗粗 | 0.057 5 | 0.001 1 | 0.005 2 | 0.088 4 | -0.001 6 | 0.007 4 | 0.045 4 | 0.173 9 | |
秃尖长 | -0.027 5 | -0.000 1 | -0.028 1 | 0.009 8 | 0.003 4 | 0.004 4 | -0.203 5 | -0.143 4 | |
穗行数 | 0.238 9 | 0.001 2 | 0.034 2 | 0.038 3 | 0.001 8 | -0.000 5 | 0.037 1 | -0.009 4 | |
行粒数 | 0.436 8 | -0.001 7 | 0.061 3 | 0.081 2 | 0.006 0 | 0.012 8 | 0.020 3 | 0.027 5 | |
百粒重 | 0.424 2 | 0.006 2 | 0.015 2 | 0.098 7 | 0.023 6 | 0.009 3 | -0.005 3 | 0.028 3 |
Table 5 Path analysis between yield and main agronomic traits of maize
性状 | 直接通径系数 | 间接通径系数 | |||||||
---|---|---|---|---|---|---|---|---|---|
x1-y | x2-y | x3-y | x4-y | x5-y | x6-y | x7-y | x8-y | ||
株高 | -0.046 1 | 0.063 8 | -0.007 9 | -0.001 4 | -0.000 1 | -0.006 2 | 0.016 4 | -0.057 5 | |
穗位高 | 0.160 5 | -0.018 3 | 0.086 2 | 0.001 8 | 0.004 8 | 0.050 9 | 0.167 0 | 0.040 3 | |
穗长 | 0.228 8 | 0.001 6 | 0.060 5 | 0.022 2 | -0.001 2 | 0.040 0 | 0.155 0 | 0.183 1 | |
穗粗 | 0.057 5 | 0.001 1 | 0.005 2 | 0.088 4 | -0.001 6 | 0.007 4 | 0.045 4 | 0.173 9 | |
秃尖长 | -0.027 5 | -0.000 1 | -0.028 1 | 0.009 8 | 0.003 4 | 0.004 4 | -0.203 5 | -0.143 4 | |
穗行数 | 0.238 9 | 0.001 2 | 0.034 2 | 0.038 3 | 0.001 8 | -0.000 5 | 0.037 1 | -0.009 4 | |
行粒数 | 0.436 8 | -0.001 7 | 0.061 3 | 0.081 2 | 0.006 0 | 0.012 8 | 0.020 3 | 0.027 5 | |
百粒重 | 0.424 2 | 0.006 2 | 0.015 2 | 0.098 7 | 0.023 6 | 0.009 3 | -0.005 3 | 0.028 3 |
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