长江中下游地区常规中熟粳稻产量、品质及氮素吸收性状的相互关系分析
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刘秋员, 周磊, 田晋钰, 程爽, 陶钰, 邢志鹏, 刘国栋, 魏海燕, 张洪程
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Relationships among grain yield, rice quality and nitrogen uptake of inbred middle-ripe japonica rice in the middle and lower reaches of Yangtze River
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LIU Qiu-Yuan, ZHOU Lei, TIAN Jin-Yu, CHENG Shuang, TAO Yu, XING Zhi-Peng, LIU Guo-Dong, WEI Hai-Yan, ZHANG Hong-Cheng
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表7 总吸氮量与其构成因素相关及通径分析
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Table 7 Correlation and path analysis of total nitrogen uptake content and its components
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指标 Trait | 简单相关系数 Simple correlation coefficient | 直接通径系数 Direct path coefficients | 间接通径系数 Indirect path coefficients | 决策系数 Decision coefficient | 茎干重 SDM | 叶干重 LDM | 穗干重 PDM | 茎含氮率 SNR | 叶含氮率 LNR | 穗含氮率 PNR | 合计 Total | 2017 | | | | | | | | | | | 茎干重SDM | 0.669** | 0.382 | — | 0.159 | 0.376 | -0.016 | -0.094 | -0.139 | 0.287 | 0.365 | 叶干重LDM | 0.693** | 0.428 | 0.142 | — | 0.327 | 0.052 | -0.093 | -0.164 | 0.265 | 0.410 | 穗干重PDM | 0.803** | 0.692 | 0.208 | 0.202 | — | -0.042 | -0.147 | -0.110 | 0.111 | 0.632 | 茎含氮率SNR | 0.214* | 0.354 | -0.017 | 0.063 | -0.083 | — | -0.006 | -0.097 | -0.140 | 0.026 | 叶含氮率LNR | -0.342** | 0.273 | -0.132 | -0.146 | -0.373 | -0.008 | — | 0.043 | -0.615 | -0.261 | 穗含氮率PNR | -0.261* | 0.358 | -0.148 | -0.196 | -0.212 | -0.096 | 0.033 | — | -0.619 | -0.315 | 2018 | | | | | | | | | | | 茎干重SDM | 0.611** | 0.312 | — | 0.202 | 0.294 | -0.055 | -0.029 | -0.112 | 0.300 | 0.284 | 叶干重LDM | 0.768** | 0.353 | 0.178 | — | 0.444 | 0.026 | -0.012 | -0.221 | 0.415 | 0.418 | 穗干重PDM | 0.811** | 0.753 | 0.122 | 0.208 | — | -0.055 | -0.066 | -0.151 | 0.059 | 0.654 | 茎含氮率SNR | 0.059 | 0.356 | -0.048 | 0.025 | -0.117 | — | 0.040 | -0.198 | -0.297 | -0.085 | 叶含氮率LNR | -0.106 | 0.205 | -0.044 | -0.020 | -0.241 | 0.069 | — | -0.075 | -0.311 | -0.085 | 穗含氮率PNR | -0.155 | 0.487 | -0.072 | -0.160 | -0.233 | -0.145 | -0.031 | — | -0.642 | -0.388 |
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