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6 供试品种(系)干物质积累及氮素吸收
|
Table 6 Dry matter accumulation and nitrogen absorption of tested varieties (lines)
|
|
指标
Trait | 2017 | 2018 | 变幅
Range | 平均值
Mean | 变异系数CV (%) | 变幅
Range | 平均值
Mean | 变异系数CV (%) | | 茎干重 SDM (t hm-2) | 4.62-7.44 | 6.01 | 9.29 | 4.78-7.09 | 5.99 | 8.34 | | 叶干重 LDM (t hm-2) | 2.24-4.37 | 3.28 | 12.34 | 2.15-3.83 | 3.05 | 11.43 | | 穗干重 PDM (t hm-2) | 6.94-10.99 | 9.00 | 8.93 | 7.20-11.63 | 9.21 | 9.72 | | 总干重 TDM (t hm-2) | 14.56-21.25 | 18.29 | 7.89 | 14.77-21.23 | 18.25 | 7.94 | | 茎含氮率 SNR (%) | 0.80-1.19 | 1.02 | 8.94 | 0.71-1.18 | 0.94 | 9.64 | | 叶含氮率 LNR (%) | 1.33-1.86 | 1.59 | 8.50 | 1.09-1.65 | 1.39 | 7.92 | | 穗含氮率 PNR (%) | 1.24-1.56 | 1.36 | 4.66 | 1.06-1.50 | 1.28 | 6.32 | | 茎吸氮量 SNC (kg hm-2) | 43.92-84.95 | 61.50 | 12.71 | 37.94-73.85 | 55.97 | 11.60 | | 叶吸氮量 LNC (kg hm-2) | 36.62-70.98 | 52.00 | 12.57 | 25.96-58.01 | 42.33 | 13.61 | | 穗吸氮量 PNC (kg hm-2) | 89.19-149.51 | 121.92 | 8.60 | 89.37-144.78 | 117.32 | 9.73 | | 总吸氮量 TNC (kg hm-2) | 194.77-270.38 | 235.42 | 6.50 | 175.72-246.13 | 215.63 | 6.80 |
|
|
|