长江中下游地区常规中熟粳稻氮效率综合评价及高产氮高效品种筛选
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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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Comprehensive Evaluation of Nitrogen Efficiency and Screening of Varieties with High Grain Yield and High Nitrogen Efficiency of Inbred Middle-Ripe Japonica Rice in the Middle and Lower Reaches of Yangtze River
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LIU QiuYuan,ZHOU Lei,TIAN JinYu,CHENG Shuang,TAO Yu,XING ZhiPeng,LIU GuoDong,WEI HaiYan,ZHANG HongCheng
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表2 供试品种（系）产量、干物质、氮素吸收与利用性状
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Table 2 Grain yield, dry matter production, nitrogen uptake and utilization efficiency of tested varieties (lines)
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年份
Year | 指标
Trait | N18 | N0 |
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变幅
Range | 平均值
Mean | 变异系数
CV (%) | 变幅
Range | 平均值
Mean | 变异系数
CV (%) |
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| 2017 | 有效穗数 Number of effective panicles (×104 hm-2) | 302.58-467.52 | 365.20 | 8.16 | 230.10-426.90 | 303.97 | 9.31 | | 千粒重 1000-grain weight (g) | 20.60-29.88 | 26.38 | 5.87 | 20.93-30.25 | 26.88 | 5.75 | | 穗粒数 Spikelet per panicle | 75.38-136.08 | 103.21 | 10.48 | 63.88-114.3 | 94.47 | 10.05 | | 结实率 Percentage of filled grains (%) | 82.43-95.77 | 89.43 | 3.39 | 79.34-98.43 | 92.37 | 4.27 | | 产量 Grain yield (t·hm-2) | 6.80-9.89 | 8.42 | 8.11 | 5.25-7.76 | 6.69 | 6.91 | | 茎干重 SDM (t·hm-2) | 4.62-7.44 | 6.01 | 9.29 | 3.36-5.30 | 4.36 | 7.82 | | 叶干重 LDM (t·hm-2) | 2.24-4.37 | 3.28 | 12.34 | 1.66-2.99 | 2.39 | 10.72 | | 穗干重 PDM (t·hm-2) | 6.94-10.99 | 9.00 | 8.93 | 5.41-8.36 | 7.13 | 7.38 | | 总干重 TDM (t·hm-2) | 14.56-21.25 | 18.29 | 7.89 | 10.75-15.89 | 13.89 | 6.65 | | 茎吸氮量 SNC (kg·hm-2) | 43.92-84.95 | 61.50 | 12.71 | 20.28-37.56 | 25.29 | 11.40 | | 叶吸氮量 LNC (kg·hm-2) | 36.62-70.98 | 52.00 | 12.57 | 21.60-41.75 | 31.84 | 13.11 | | 穗吸氮量 PNC (kg·hm-2) | 89.19-149.51 | 121.92 | 8.60 | 61.64-98.58 | 83.74 | 8.73 | | 总吸氮量 TNC (kg·hm-2) | 194.77-270.38 | 235.42 | 6.50 | 117.17-165.88 | 140.87 | 7.53 | | 氮肥回收效率 NRE (%) | 24.55-47.83 | 35.02 | 13.73 | — | — | — | | 氮肥农学利用率 NAE (kg·kg-1) | 1.70-13.58 | 6.39 | 35.17 | — | — | — | | 氮素生理利用率 NPE (kg·kg-1) | 6.38-32.16 | 17.92 | 25.81 | — | — | — | | 氮素籽粒生产效率 GYE (kg·kg-1) | 31.52-39.38 | 35.75 | 3.97 | — | — | — | | 氮素干物质生产效率 DME (kg·kg-1) | 69.24-83.74 | 77.66 | 3.54 | — | — | — | | 2018 | 有效穗数 Number of effective panicles (×104 hm-2) | 268.51-456.36 | 350.82 | 8.58 | 239.04-403.73 | 288.24 | 8.80 | | 千粒重 1000-grain weight (g) | 20.78-30.17 | 26.62 | 6.57 | 22.05-30.88 | 27.86 | 6.19 | | 穗粒数 Spikelet per panicle | 74.19-134.88 | 103.31 | 11.08 | 67.22-119.13 | 91.33 | 9.85 | | 结实率 Percentage of filled grains (%) | 86.84-98.56 | 94.60 | 2.62 | 91.69-98.57 | 96.42 | 1.59 | | 产量 Grain yield (t·hm-2) | 6.82-10.28 | 8.58 | 8.49 | 5.04-8.01 | 6.60 | 8.03 | | 茎干重 SDM (t·hm-2) | 4.78-7.09 | 5.99 | 8.34 | 3.39-5.46 | 4.32 | 8.95 | | 叶干重 LDM (t·hm-2) | 2.15-3.83 | 3.05 | 11.43 | 1.45-2.43 | 1.98 | 11.08 | | 穗干重 PDM (t·hm-2) | 7.20-11.63 | 9.21 | 9.72 | 5.08-8.70 | 7.06 | 8.62 | | 总干重 TDM (t·hm-2) | 14.77-21.23 | 18.25 | 7.94 | 10.84-15.93 | 13.36 | 7.40 | | 茎吸氮量 SNC (kg·hm-2) | 37.94-73.85 | 55.97 | 11.60 | 15.61-30.53 | 21.67 | 13.71 | | 叶吸氮量 LNC (kg·hm-2) | 25.96-58.01 | 42.33 | 13.61 | 14.79-28.33 | 21.09 | 15.84 | | 穗吸氮量 PNC (kg·hm-2) | 89.37-144.78 | 117.32 | 9.73 | 61.02-95.06 | 78.76 | 8.27 | | 总吸氮量 TNC (kg·hm-2) | 175.72-246.13 | 215.63 | 6.80 | 100.01-146.65 | 121.51 | 7.32 | | 氮肥回收效率 NRE (%) | 21.06-45.79 | 34.86 | 15.17 | — | — | — | | 氮肥农学利用率 NAE (kg·kg-1) | 2.27-13.97 | 7.33 | 32.29 | — | — | — | | 氮素生理利用率 NPE (kg·kg-1) | 10.76-30.96 | 20.65 | 22.31 | — | — | — | | 氮素籽粒生产效率 GYE (kg·kg-1) | 36.28-44.26 | 39.77 | 4.27 | — | — | — | | 氮素干物质生产效率 DME (kg·kg-1) | 77.15-91.93 | 84.59 | 3.60 | — | — | — |
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