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

刘秋员, 周磊, 田晋钰, 程爽, 陶钰, 邢志鹏, 刘国栋, 魏海燕, 张洪程

Relationships among grain yield, rice quality and nitrogen uptake of inbred middle-ripe japonica rice in the middle and lower reaches of Yangtze River

LIU Qiu-Yuan, ZHOU Lei, TIAN Jin-Yu, CHENG Shuang, TAO Yu, XING Zhi-Peng, LIU Guo-Dong, WEI Hai-Yan, ZHANG Hong-Cheng

表7 总吸氮量与其构成因素相关及通径分析

Table 7 Correlation and path analysis of total nitrogen uptake content and its components

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