Chinese Journal OF Rice Science ›› 2025, Vol. 39 ›› Issue (1): 101-114.DOI: 10.16819/j.1001-7216.2025.240513
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WU Meng1,2, NI Chuan1,2, KANG Yuying1,2, MAO Yuxin1,2, YE Miao1,2, ZHANG Zujian1,2,*()
Received:
2024-05-24
Revised:
2024-08-02
Online:
2025-01-10
Published:
2025-01-14
Contact:
ZHANG Zujian
吴猛1,2, 倪川1,2, 康钰莹1,2, 毛雨欣1,2, 叶苗1,2, 张祖建1,2,*()
通讯作者:
张祖建
基金资助:
WU Meng, NI Chuan, KANG Yuying, MAO Yuxin, YE Miao, ZHANG Zujian. Inter-varietal Differences in Early Tillering Characteristics and Their Responses to Nitrogen[J]. Chinese Journal OF Rice Science, 2025, 39(1): 101-114.
吴猛, 倪川, 康钰莹, 毛雨欣, 叶苗, 张祖建. 水稻分蘖早发特性的品种间差异及其氮素响应[J]. 中国水稻科学, 2025, 39(1): 101-114.
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URL: http://www.ricesci.cn/EN/10.16819/j.1001-7216.2025.240513
Fig. 1. Tillering dynamics of tested varieties under different nitrogen levels N1, N2 and N3 refer to nitrogen application rates of 0, 1.1 and 2.2 g/pot during tillering stage, respectively.
氮处理 Nitrogen treatment | 品种名称 Variety | 移栽后天数 Days after transplanting(d) | ||||
---|---|---|---|---|---|---|
0~6 | 7~12 | 13~24 | 25~36 | 0~36 | ||
N1 | 汕优63 Shanyou 63 | 0.33 a | 0.38 a | 0.53 a | 0.04 a | 0.29 a |
两优培九 Liangyoupeijiu | 0.28 a | 0.40 a | 0.54 a | 0.07 a | 0.29 a | |
R3012 | 0.33 a | 0.37 a | 0.49 a | 0.08 a | 0.28 a | |
扬稻6号 Yangdao 6 | 0.30 a | 0.29 b | 0.39 c | 0.08 a | 0.21 b | |
淮稻5号 Huaidao 5 | 0.17 b | 0.17 c | 0.42 b | 0.04 a | 0.20 b | |
南粳9108 Nanjing 9108 | 0.17 b | 0.17 c | 0.43 b | 0.08 a | 0.19 b | |
N2 | 汕优63 Shanyou 63 | 0.33 a | 0.50 a | 0.77 a | 0.11 a | 0.44 a |
两优培九 Liangyoupeijiu | 0.33 a | 0.50 a | 0.70 a | 0.15 a | 0.40 a | |
R3012 | 0.33 a | 0.47 a | 0.64 a | 0.06 b | 0.40 a | |
扬稻6号 Yangdao 6 | 0.33 a | 0.30 b | 0.40 c | 0.17 a | 0.33 b | |
淮稻5号 Huaidao 5 | 0.17 b | 0.28 b | 0.47 b | 0.13 a | 0.29 b | |
南粳9108 Nanjing 9108 | 0.17 b | 0.28 b | 0.52 b | 0.06 b | 0.27 b | |
N3 | 汕优63 Shanyou 63 | 0.38 a | 0.56 a | 0.87 a | 0.14 a | 0.45 a |
两优培九 Liangyoupeijiu | 0.38 a | 0.50 a | 0.79 a | 0.14 a | 0.44 a | |
R3012 | 0.38 a | 0.53 a | 0.79 a | 0.13 a | 0.42 a | |
扬稻6号 Yangdao 6 | 0.33 b | 0.43 b | 0.41 c | 0.13 a | 0.33 b | |
淮稻5号 Huaidao 5 | 0.25 c | 0.41 c | 0.49 b | 0.02 b | 0.29 b | |
南粳9108 Nanjing 9108 | 0.25 c | 0.31 c | 0.52 b | 0.01 b | 0.31 b |
Table 1. Average daily tiller increment of the tested varieties after transplanting under different nitrogen levels No./d
氮处理 Nitrogen treatment | 品种名称 Variety | 移栽后天数 Days after transplanting(d) | ||||
---|---|---|---|---|---|---|
0~6 | 7~12 | 13~24 | 25~36 | 0~36 | ||
N1 | 汕优63 Shanyou 63 | 0.33 a | 0.38 a | 0.53 a | 0.04 a | 0.29 a |
两优培九 Liangyoupeijiu | 0.28 a | 0.40 a | 0.54 a | 0.07 a | 0.29 a | |
R3012 | 0.33 a | 0.37 a | 0.49 a | 0.08 a | 0.28 a | |
扬稻6号 Yangdao 6 | 0.30 a | 0.29 b | 0.39 c | 0.08 a | 0.21 b | |
淮稻5号 Huaidao 5 | 0.17 b | 0.17 c | 0.42 b | 0.04 a | 0.20 b | |
南粳9108 Nanjing 9108 | 0.17 b | 0.17 c | 0.43 b | 0.08 a | 0.19 b | |
N2 | 汕优63 Shanyou 63 | 0.33 a | 0.50 a | 0.77 a | 0.11 a | 0.44 a |
两优培九 Liangyoupeijiu | 0.33 a | 0.50 a | 0.70 a | 0.15 a | 0.40 a | |
R3012 | 0.33 a | 0.47 a | 0.64 a | 0.06 b | 0.40 a | |
扬稻6号 Yangdao 6 | 0.33 a | 0.30 b | 0.40 c | 0.17 a | 0.33 b | |
淮稻5号 Huaidao 5 | 0.17 b | 0.28 b | 0.47 b | 0.13 a | 0.29 b | |
南粳9108 Nanjing 9108 | 0.17 b | 0.28 b | 0.52 b | 0.06 b | 0.27 b | |
N3 | 汕优63 Shanyou 63 | 0.38 a | 0.56 a | 0.87 a | 0.14 a | 0.45 a |
两优培九 Liangyoupeijiu | 0.38 a | 0.50 a | 0.79 a | 0.14 a | 0.44 a | |
R3012 | 0.38 a | 0.53 a | 0.79 a | 0.13 a | 0.42 a | |
扬稻6号 Yangdao 6 | 0.33 b | 0.43 b | 0.41 c | 0.13 a | 0.33 b | |
淮稻5号 Huaidao 5 | 0.25 c | 0.41 c | 0.49 b | 0.02 b | 0.29 b | |
南粳9108 Nanjing 9108 | 0.25 c | 0.31 c | 0.52 b | 0.01 b | 0.31 b |
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | |||||
---|---|---|---|---|---|---|---|---|
茎鞘 Stem | 叶 Leaf | 整株 Plant | 茎鞘 Stem | 叶 Leaf | 整株 Plant | |||
N1 | 汕优63 Shanyou 63 | 21.54 a | 43.34 a | 31.52 a | 8.55 a | 23.82 a | 13.94 a | |
两优培九 Liangyoupeijiu | 21.55 a | 42.81 b | 31.98 a | 8.53 a | 23.81 a | 13.72 a | ||
R3012 | 21.36 a | 42.60 b | 31.21 ab | 8.02 a | 23.32 a | 13.59 a | ||
扬稻6号 Yangdao 6 | 21.06 a | 42.43 b | 29.83 c | 8.43 a | 22.32 b | 13.04 b | ||
淮稻5号 Huaidao 5 | 21.48 a | 43.63 a | 30.81 b | 8.63 a | 23.29 a | 13.61 a | ||
南粳9108 Nanjing 9108 | 19.55 b | 42.75 b | 29.29 c | 8.49 a | 22.58 b | 12.94 b | ||
N2 | 汕优63 Shanyou 63 | 25.92 a | 47.91 a | 35.31 a | 10.92 a | 29.64 a | 18.90 a | |
两优培九 Liangyoupeijiu | 25.79 a | 45.98 b | 35.13 a | 10.42 ab | 28.77 b | 17.86 b | ||
R3012 | 25.82 a | 45.07 b | 35.00 a | 10.34 ab | 28.41 b | 17.30 b | ||
扬稻6号 Yangdao 6 | 25.16 b | 44.76 c | 33.18 b | 10.47 ab | 27.91 c | 16.17 c | ||
淮稻5号 Huaidao 5 | 25.50 b | 46.17 a | 34.69 a | 10.88 a | 30.83 a | 17.45 b | ||
南粳9108 Nanjing 9108 | 24.36 c | 43.01 c | 32.36 c | 9.89 b | 27.83 c | 16.12 c | ||
N3 | 汕优63 Shanyou 63 | 28.39 a | 48.51 b | 38.12 a | 17.50 a | 35.77 a | 24.19 a | |
两优培九 Liangyoupeijiu | 27.30 a | 46.41 c | 36.84 b | 15.68 b | 34.00 b | 23.73 a | ||
R3012 | 27.42 a | 45.71 c | 36.48 b | 17.45 a | 33.26 b | 22.65 b | ||
扬稻6号 Yangdao 6 | 27.16 a | 45.42 c | 35.33 c | 14.31 c | 32.83 b | 21.77 c | ||
淮稻5号 Huaidao 5 | 27.41 a | 49.96 a | 35.73 c | 15.35 b | 35.78 a | 23.39 a | ||
南粳9108 Nanjing 9108 | 26.67 a | 45.77 c | 35.10 c | 14.38 c | 31.14 c | 20.62 d |
Table 2. Nitrogen content in different organs of tested varieties under different nitrogen levels mg/g
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | |||||
---|---|---|---|---|---|---|---|---|
茎鞘 Stem | 叶 Leaf | 整株 Plant | 茎鞘 Stem | 叶 Leaf | 整株 Plant | |||
N1 | 汕优63 Shanyou 63 | 21.54 a | 43.34 a | 31.52 a | 8.55 a | 23.82 a | 13.94 a | |
两优培九 Liangyoupeijiu | 21.55 a | 42.81 b | 31.98 a | 8.53 a | 23.81 a | 13.72 a | ||
R3012 | 21.36 a | 42.60 b | 31.21 ab | 8.02 a | 23.32 a | 13.59 a | ||
扬稻6号 Yangdao 6 | 21.06 a | 42.43 b | 29.83 c | 8.43 a | 22.32 b | 13.04 b | ||
淮稻5号 Huaidao 5 | 21.48 a | 43.63 a | 30.81 b | 8.63 a | 23.29 a | 13.61 a | ||
南粳9108 Nanjing 9108 | 19.55 b | 42.75 b | 29.29 c | 8.49 a | 22.58 b | 12.94 b | ||
N2 | 汕优63 Shanyou 63 | 25.92 a | 47.91 a | 35.31 a | 10.92 a | 29.64 a | 18.90 a | |
两优培九 Liangyoupeijiu | 25.79 a | 45.98 b | 35.13 a | 10.42 ab | 28.77 b | 17.86 b | ||
R3012 | 25.82 a | 45.07 b | 35.00 a | 10.34 ab | 28.41 b | 17.30 b | ||
扬稻6号 Yangdao 6 | 25.16 b | 44.76 c | 33.18 b | 10.47 ab | 27.91 c | 16.17 c | ||
淮稻5号 Huaidao 5 | 25.50 b | 46.17 a | 34.69 a | 10.88 a | 30.83 a | 17.45 b | ||
南粳9108 Nanjing 9108 | 24.36 c | 43.01 c | 32.36 c | 9.89 b | 27.83 c | 16.12 c | ||
N3 | 汕优63 Shanyou 63 | 28.39 a | 48.51 b | 38.12 a | 17.50 a | 35.77 a | 24.19 a | |
两优培九 Liangyoupeijiu | 27.30 a | 46.41 c | 36.84 b | 15.68 b | 34.00 b | 23.73 a | ||
R3012 | 27.42 a | 45.71 c | 36.48 b | 17.45 a | 33.26 b | 22.65 b | ||
扬稻6号 Yangdao 6 | 27.16 a | 45.42 c | 35.33 c | 14.31 c | 32.83 b | 21.77 c | ||
淮稻5号 Huaidao 5 | 27.41 a | 49.96 a | 35.73 c | 15.35 b | 35.78 a | 23.39 a | ||
南粳9108 Nanjing 9108 | 26.67 a | 45.77 c | 35.10 c | 14.38 c | 31.14 c | 20.62 d |
氮处理 Nitrogen treatment | 品种 Variety | 干物质量 Dry matter weight (g/pot) | 分蘖物质效率 Tillering matter efficiency (No./pot) | |||||
---|---|---|---|---|---|---|---|---|
移栽后15 d 15 DAT | 移栽后30 d 30 DAT | 移栽后45 d 45 DAT | 抽穗期 Heading stage | 移栽后0~15 d 0-15 DAT | 移栽后0~30 d 0-30 DAT | |||
N1 | 汕优63 Shanyou 63 | 6.68 a | 52.22 a | 64.67 a | 113.22 a | 0.81 a | 4.45 a | |
两优培九 Liangyoupeijiu | 6.69 a | 41.77 b | 63.96 a | 112.29 a | 0.82 a | 4.41 a | ||
R3012 | 6.34 a | 40.39 b | 60.83 b | 112.33 a | 0.82 a | 4.31 a | ||
扬稻6号 Yangdao 6 | 5.23 b | 39.21 bc | 61.01 b | 104.83 b | 0.83 a | 4.61 a | ||
淮稻5号 Huaidao 5 | 4.62 bc | 37.42 c | 56.92 c | 78.79 c | 0.82 a | 4.33 a | ||
南粳9108 Nanjing 9108 | 3.91 c | 24.53 d | 56.87 c | 77.61 c | 0.82 a | 4.57 a | ||
N2 | 汕优63 Shanyou 63 | 9.49 a | 62.52 a | 113.99 a | 212.47 a | 0.99 a | 3.91 a | |
两优培九 Liangyoupeijiu | 10.02 a | 61.04 a | 111.13 a | 210.23 a | 1.06 a | 4.21 a | ||
R3012 | 9.48 a | 61.72 a | 109.34 a | 210.73 a | 0.97 a | 4.49 a | ||
扬稻6号 Yangdao 6 | 6.51 b | 52.40 b | 88.69 b | 184.47 b | 1.02 a | 4.11 a | ||
淮稻5号 Huaidao 5 | 5.39 c | 48.93 bc | 76.88 b | 156.23 c | 0.93 a | 4.25 a | ||
南粳9108 Nanjing 9108 | 4.13 d | 42.10 c | 75.99 b | 148.64 d | 0.96 a | 4.2 a | ||
N3 | 汕优63 Shanyou 63 | 10.56 a | 74.76 a | 147.80 a | 251.31 a | 0.97 a | 4.33 a | |
两优培九 Liangyoupeijiu | 10.05 a | 73.36 a | 140.80 a | 250.27 a | 0.93 a | 4.32 a | ||
R3012 | 9.48 a | 74.11 a | 141.66 a | 237.41 b | 0.91 a | 4.63 a | ||
扬稻6号 Yangdao 6 | 6.76 b | 55.78 b | 111.89 b | 200.13 c | 0.99 a | 4.55 a | ||
淮稻5号 Huaidao 5 | 5.68 c | 50.99 c | 71.89 c | 206.77 c | 0.93 a | 4.97 a | ||
南粳9108 Nanjing 9108 | 4.75 c | 49.72 c | 66.35 c | 195.94 d | 0.94 a | 4.32 a |
Table 3. Dry matter accumulation and tillering matter efficiency of tested varieties under different nitrogen levels
氮处理 Nitrogen treatment | 品种 Variety | 干物质量 Dry matter weight (g/pot) | 分蘖物质效率 Tillering matter efficiency (No./pot) | |||||
---|---|---|---|---|---|---|---|---|
移栽后15 d 15 DAT | 移栽后30 d 30 DAT | 移栽后45 d 45 DAT | 抽穗期 Heading stage | 移栽后0~15 d 0-15 DAT | 移栽后0~30 d 0-30 DAT | |||
N1 | 汕优63 Shanyou 63 | 6.68 a | 52.22 a | 64.67 a | 113.22 a | 0.81 a | 4.45 a | |
两优培九 Liangyoupeijiu | 6.69 a | 41.77 b | 63.96 a | 112.29 a | 0.82 a | 4.41 a | ||
R3012 | 6.34 a | 40.39 b | 60.83 b | 112.33 a | 0.82 a | 4.31 a | ||
扬稻6号 Yangdao 6 | 5.23 b | 39.21 bc | 61.01 b | 104.83 b | 0.83 a | 4.61 a | ||
淮稻5号 Huaidao 5 | 4.62 bc | 37.42 c | 56.92 c | 78.79 c | 0.82 a | 4.33 a | ||
南粳9108 Nanjing 9108 | 3.91 c | 24.53 d | 56.87 c | 77.61 c | 0.82 a | 4.57 a | ||
N2 | 汕优63 Shanyou 63 | 9.49 a | 62.52 a | 113.99 a | 212.47 a | 0.99 a | 3.91 a | |
两优培九 Liangyoupeijiu | 10.02 a | 61.04 a | 111.13 a | 210.23 a | 1.06 a | 4.21 a | ||
R3012 | 9.48 a | 61.72 a | 109.34 a | 210.73 a | 0.97 a | 4.49 a | ||
扬稻6号 Yangdao 6 | 6.51 b | 52.40 b | 88.69 b | 184.47 b | 1.02 a | 4.11 a | ||
淮稻5号 Huaidao 5 | 5.39 c | 48.93 bc | 76.88 b | 156.23 c | 0.93 a | 4.25 a | ||
南粳9108 Nanjing 9108 | 4.13 d | 42.10 c | 75.99 b | 148.64 d | 0.96 a | 4.2 a | ||
N3 | 汕优63 Shanyou 63 | 10.56 a | 74.76 a | 147.80 a | 251.31 a | 0.97 a | 4.33 a | |
两优培九 Liangyoupeijiu | 10.05 a | 73.36 a | 140.80 a | 250.27 a | 0.93 a | 4.32 a | ||
R3012 | 9.48 a | 74.11 a | 141.66 a | 237.41 b | 0.91 a | 4.63 a | ||
扬稻6号 Yangdao 6 | 6.76 b | 55.78 b | 111.89 b | 200.13 c | 0.99 a | 4.55 a | ||
淮稻5号 Huaidao 5 | 5.68 c | 50.99 c | 71.89 c | 206.77 c | 0.93 a | 4.97 a | ||
南粳9108 Nanjing 9108 | 4.75 c | 49.72 c | 66.35 c | 195.94 d | 0.94 a | 4.32 a |
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | |||||||
---|---|---|---|---|---|---|---|---|---|---|
净光合速率 Net photosynthetic rate (mol·m−2 s−1) | 气孔导度 Stomatal conductance (mol·m−2 s−1) | 蒸腾速率 Transpiration rate (mmol·m−2 s−1) | 胞间CO2浓度 Intercellular CO2 concentration (μmol/mol) | 净光合速率 Net photosynthetic rate (mol·m−2 s−1) | 气孔导度 Stomatal conductance (mol·m−2 s−1) | 蒸腾速率 Transpiration rate (mmol·m−2 s−1) | 胞间CO2浓度 Intercellular CO2 concentration (μmol/mol) | |||
N1 | 汕优63 Shanyou 63 | 29.87 a | 0.58 a | 8.61 a | 287.35 a | 17.85 a | 0.34 ab | 5.52 a | 283.84 c | |
两优培九Liangyoupeijiu | 29.01 a | 0.55 a | 8.51 a | 285.07 a | 16.02 b | 0.30 ab | 5.17 b | 290.43 b | ||
R3012 | 27.35 b | 0.52 b | 8.14 a | 281.56 a | 15.52 b | 0.29 b | 4.91 b | 287.94 bc | ||
扬稻6号 Yangdao 6 | 23.07 c | 0.37 c | 5.76 c | 249.44 c | 11.47 d | 0.25 d | 4.28 c | 274.96 d | ||
淮稻5号 Huaidao 5 | 26.01 b | 0.46 c | 7.82 a | 278.52 b | 17.35 a | 0.39 a | 5.44 a | 297.53 a | ||
南粳9108 Nanjing 9108 | 24.79 c | 0.40 d | 7.00 b | 275.15 b | 13.25 c | 0.27 c | 4.48 c | 291.29 b | ||
N2 | 汕优63 Shanyou 63 | 30.90 a | 0.64 a | 9.65 a | 295.71 a | 28.17 a | 0.85 a | 12.40 a | 305.74 b | |
两优培九Liangyoupeijiu | 29.69 a | 0.57 b | 8.71 b | 288.07 a | 27.54 a | 0.86 a | 12.57 a | 304.53 b | ||
R3012 | 28.16 b | 0.48 c | 7.73 c | 280.29 b | 25.49 b | 0.56 bc | 9.29 b | 294.90 c | ||
扬稻6号 Yangdao 6 | 23.99 c | 0.42 c | 6.89 d | 263.35 c | 23.34 c | 0.42 d | 6.48 c | 275.96 d | ||
淮稻5号 Huaidao 5 | 30.60 a | 0.59 b | 9.24 a | 289.07 a | 28.00 a | 0.82 a | 12.31 a | 316.34 a | ||
南粳9108 Nanjing 9108 | 28.62 b | 0.52 b | 8.12 b | 284.55 b | 25.93 b | 0.62 b | 10.62 b | 299.40 c | ||
N3 | 汕优63 Shanyou 63 | 31.01 a | 0.79 a | 11.63 a | 291.75 b | 29.02 a | 1.11 a | 12.32 a | 321.62 a | |
两优培九Liangyoupeijiu | 30.70 b | 0.73 a | 10.27 b | 289.10 b | 29.01 a | 0.95 b | 12.22 a | 315.93 a | ||
R3012 | 29.15 c | 0.57 c | 9.07 b | 282.71 b | 28.00 b | 0.82 c | 10.48 b | 307.14 b | ||
扬稻6号 Yangdao 6 | 26.83 d | 0.42 d | 6.82 d | 258.82 c | 25.81 c | 0.73 d | 9.62 c | 309.66 b | ||
淮稻5号 Huaidao 5 | 31.50 a | 0.61 b | 9.52 b | 302.20 a | 29.30 a | 1.00 ab | 12.41 a | 307.99 b | ||
南粳9108 Nanjing 9108 | 29.27 c | 0.52 c | 8.25 c | 285.70 b | 27.46 b | 0.88 c | 10.42 b | 296.13 c |
Table 4. Leaf photosynthetic parameters at tillering stage of tested varieties under different nitrogen levels
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | |||||||
---|---|---|---|---|---|---|---|---|---|---|
净光合速率 Net photosynthetic rate (mol·m−2 s−1) | 气孔导度 Stomatal conductance (mol·m−2 s−1) | 蒸腾速率 Transpiration rate (mmol·m−2 s−1) | 胞间CO2浓度 Intercellular CO2 concentration (μmol/mol) | 净光合速率 Net photosynthetic rate (mol·m−2 s−1) | 气孔导度 Stomatal conductance (mol·m−2 s−1) | 蒸腾速率 Transpiration rate (mmol·m−2 s−1) | 胞间CO2浓度 Intercellular CO2 concentration (μmol/mol) | |||
N1 | 汕优63 Shanyou 63 | 29.87 a | 0.58 a | 8.61 a | 287.35 a | 17.85 a | 0.34 ab | 5.52 a | 283.84 c | |
两优培九Liangyoupeijiu | 29.01 a | 0.55 a | 8.51 a | 285.07 a | 16.02 b | 0.30 ab | 5.17 b | 290.43 b | ||
R3012 | 27.35 b | 0.52 b | 8.14 a | 281.56 a | 15.52 b | 0.29 b | 4.91 b | 287.94 bc | ||
扬稻6号 Yangdao 6 | 23.07 c | 0.37 c | 5.76 c | 249.44 c | 11.47 d | 0.25 d | 4.28 c | 274.96 d | ||
淮稻5号 Huaidao 5 | 26.01 b | 0.46 c | 7.82 a | 278.52 b | 17.35 a | 0.39 a | 5.44 a | 297.53 a | ||
南粳9108 Nanjing 9108 | 24.79 c | 0.40 d | 7.00 b | 275.15 b | 13.25 c | 0.27 c | 4.48 c | 291.29 b | ||
N2 | 汕优63 Shanyou 63 | 30.90 a | 0.64 a | 9.65 a | 295.71 a | 28.17 a | 0.85 a | 12.40 a | 305.74 b | |
两优培九Liangyoupeijiu | 29.69 a | 0.57 b | 8.71 b | 288.07 a | 27.54 a | 0.86 a | 12.57 a | 304.53 b | ||
R3012 | 28.16 b | 0.48 c | 7.73 c | 280.29 b | 25.49 b | 0.56 bc | 9.29 b | 294.90 c | ||
扬稻6号 Yangdao 6 | 23.99 c | 0.42 c | 6.89 d | 263.35 c | 23.34 c | 0.42 d | 6.48 c | 275.96 d | ||
淮稻5号 Huaidao 5 | 30.60 a | 0.59 b | 9.24 a | 289.07 a | 28.00 a | 0.82 a | 12.31 a | 316.34 a | ||
南粳9108 Nanjing 9108 | 28.62 b | 0.52 b | 8.12 b | 284.55 b | 25.93 b | 0.62 b | 10.62 b | 299.40 c | ||
N3 | 汕优63 Shanyou 63 | 31.01 a | 0.79 a | 11.63 a | 291.75 b | 29.02 a | 1.11 a | 12.32 a | 321.62 a | |
两优培九Liangyoupeijiu | 30.70 b | 0.73 a | 10.27 b | 289.10 b | 29.01 a | 0.95 b | 12.22 a | 315.93 a | ||
R3012 | 29.15 c | 0.57 c | 9.07 b | 282.71 b | 28.00 b | 0.82 c | 10.48 b | 307.14 b | ||
扬稻6号 Yangdao 6 | 26.83 d | 0.42 d | 6.82 d | 258.82 c | 25.81 c | 0.73 d | 9.62 c | 309.66 b | ||
淮稻5号 Huaidao 5 | 31.50 a | 0.61 b | 9.52 b | 302.20 a | 29.30 a | 1.00 ab | 12.41 a | 307.99 b | ||
南粳9108 Nanjing 9108 | 29.27 c | 0.52 c | 8.25 c | 285.70 b | 27.46 b | 0.88 c | 10.42 b | 296.13 c |
Fig. 3. Relationship between tillering rate and leaf photosynthetic rate in rice A15, Leaf net photosynthetic rate at 15 days after transplanting; A30, Leaf net photosynthetic rate at 30 days after transplanting. DAT, Days after transplanting.
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | 移栽后45 d 45 DAT | 抽穗期 Heading stage |
---|---|---|---|---|---|
N1 | 汕优63 Shanyou 63 | 219.42 a | 870.60 a | 1465.8 a | 1252.1 a |
两优培九 Liangyoupeijiu | 213.10 a | 866.16 a | 1430.5 a | 1227.7 a | |
R3012 | 201.68 a | 858.06 a | 1437.6 a | 1180.7 a | |
扬稻6号 Yangdao 6 | 145.86 b | 722.13 a | 1219.6 b | 861.4 b | |
淮稻5号 Huaidao 5 | 105.58 c | 558.49 b | 1141.6 b | 827.8 b | |
南粳9108 Nanjing 9108 | 103.30 c | 523.87 b | 1131.0 b | 817.9 b | |
N2 | 汕优63 Shanyou 63 | 257.32 a | 1154.3 a | 2639.3 a | 2426.1 a |
两优培九 Liangyoupeijiu | 273.64 a | 1169.1 a | 2440.9 b | 2254.3 b | |
R3012 | 267.55 a | 1168.3 a | 2421.3 b | 2165.2 b | |
扬稻6号 Yangdao 6 | 180.69 b | 971.8 b | 2230.4 c | 1826.9 c | |
淮稻5号 Huaidao 5 | 157.23 b | 790.3 c | 1941.0 d | 1827.2 c | |
南粳9108 Nanjing 9108 | 144.86 b | 723.3 c | 1841.0 d | 1734.8 c | |
N3 | 汕优63 Shanyou 63 | 334.60 a | 1333.8 a | 2816.8 a | 2665.1 a |
两优培九 Liangyoupeijiu | 332.31 a | 1318.2 a | 2827.3 a | 2592.4 a | |
R3012 | 328.57 a | 1270.4 a | 2706.6 a | 2587.5 a | |
扬稻6号 Yangdao 6 | 283.61 b | 1149.7 b | 2351.8 b | 1966.5 b | |
淮稻5号 Huaidao 5 | 234.19 c | 932.7 c | 1967.3 c | 1903.7 bc | |
南粳9108 Nanjing 9108 | 205.41 d | 886.4 c | 1943.2 c | 1813.3 c |
Table 5. Leaf area of tested rice varieties under different nitrogen levels cm2/plant
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | 移栽后45 d 45 DAT | 抽穗期 Heading stage |
---|---|---|---|---|---|
N1 | 汕优63 Shanyou 63 | 219.42 a | 870.60 a | 1465.8 a | 1252.1 a |
两优培九 Liangyoupeijiu | 213.10 a | 866.16 a | 1430.5 a | 1227.7 a | |
R3012 | 201.68 a | 858.06 a | 1437.6 a | 1180.7 a | |
扬稻6号 Yangdao 6 | 145.86 b | 722.13 a | 1219.6 b | 861.4 b | |
淮稻5号 Huaidao 5 | 105.58 c | 558.49 b | 1141.6 b | 827.8 b | |
南粳9108 Nanjing 9108 | 103.30 c | 523.87 b | 1131.0 b | 817.9 b | |
N2 | 汕优63 Shanyou 63 | 257.32 a | 1154.3 a | 2639.3 a | 2426.1 a |
两优培九 Liangyoupeijiu | 273.64 a | 1169.1 a | 2440.9 b | 2254.3 b | |
R3012 | 267.55 a | 1168.3 a | 2421.3 b | 2165.2 b | |
扬稻6号 Yangdao 6 | 180.69 b | 971.8 b | 2230.4 c | 1826.9 c | |
淮稻5号 Huaidao 5 | 157.23 b | 790.3 c | 1941.0 d | 1827.2 c | |
南粳9108 Nanjing 9108 | 144.86 b | 723.3 c | 1841.0 d | 1734.8 c | |
N3 | 汕优63 Shanyou 63 | 334.60 a | 1333.8 a | 2816.8 a | 2665.1 a |
两优培九 Liangyoupeijiu | 332.31 a | 1318.2 a | 2827.3 a | 2592.4 a | |
R3012 | 328.57 a | 1270.4 a | 2706.6 a | 2587.5 a | |
扬稻6号 Yangdao 6 | 283.61 b | 1149.7 b | 2351.8 b | 1966.5 b | |
淮稻5号 Huaidao 5 | 234.19 c | 932.7 c | 1967.3 c | 1903.7 bc | |
南粳9108 Nanjing 9108 | 205.41 d | 886.4 c | 1943.2 c | 1813.3 c |
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | |||||||
---|---|---|---|---|---|---|---|---|---|---|
根干质量 Root dry weight (g/pot) | 根长 Root length (m/pot) | 根表面积 Root surface area (cm2/pot) | 根系直径 Root diameter (mm/pot) | 根干质量 Root dry weight (g/pot) | 根长 Root length (m/pot) | 根表面积 Root surface area (cm2/pot) | 根系直径 Root diameter (mm/pot) | |||
N1 | 汕优63 Shanyou 63 | 0.27 a | 205.97 a | 1614.4 a | 0.26 c | 2.54 a | 252.98 a | 2053.6 a | 0.44 b | |
两优培九Liangyoupeijiu | 0.29 a | 208.84 a | 1622.7 a | 0.26 c | 2.61 a | 251.09 a | 1995.3 b | 0.45 b | ||
R3012 | 0.27 a | 205.67 a | 1629.2 a | 0.28 bc | 2.57 a | 235.38 b | 1852.1 c | 0.46 b | ||
扬稻6号 Yangdao 6 | 0.18 b | 156.06 b | 1130.5 b | 0.29 b | 2.42 b | 206.16 c | 1538.6 d | 0.45 b | ||
淮稻5号 Huaidao 5 | 0.14 c | 155.47 b | 1121.2 b | 0.31 a | 1.36 c | 197.91 d | 1440.4 e | 0.48 a | ||
南粳9108 Nanjing 9108 | 0.14 c | 146.93 b | 1099.7 b | 0.32 a | 1.31 c | 191.20 d | 1404.5 e | 0.48 a | ||
N2 | 汕优63 Shanyou 63 | 0.29 a | 234.91 a | 1942.1 a | 0.31 b | 2.83 a | 315.73 a | 2596.2 a | 0.46 b | |
两优培九 Liangyoupeijiu | 0.30 a | 227.88 a | 1872.0 b | 0.31 b | 2.87 a | 296.21 b | 2612.1 a | 0.46 b | ||
R3012 | 0.28 a | 226.04 a | 1821.7 b | 0.32 b | 2.77 a | 292.90 b | 2583.2 a | 0.46 b | ||
扬稻6号 Yangdao 6 | 0.20 b | 178.40 b | 1327.3 c | 0.33 b | 2.21 b | 227.35 c | 2238.7 b | 0.46 b | ||
淮稻5号 Huaidao 5 | 0.19 b | 173.79 b | 1342.2 c | 0.36 a | 2.22 b | 225.29 c | 2246.9 b | 0.52 a | ||
南粳9108 Nanjing 9108 | 0.17 c | 165.02 b | 1239.3 d | 0.37 a | 2.24 b | 166.62 d | 1742.6 c | 0.53 a | ||
N3 | 汕优63 Shanyou 63 | 0.32 a | 267.22 a | 2212.4 a | 0.33 b | 3.11 a | 325.91 a | 2739.7 a | 0.46 b | |
两优培九 Liangyoupeijiu | 0.32 a | 262.45 a | 2170.9 a | 0.34 b | 3.08 a | 321.82 a | 2739.0 a | 0.46 b | ||
R3012 | 0.31 a | 260.31 a | 2165.3 a | 0.34 b | 2.94 b | 316.10 a | 2734.6 a | 0.46 b | ||
扬稻6号 Yangdao 6 | 0.23 b | 203.05 b | 1621.2 b | 0.35 b | 2.33 c | 263.78 b | 2334.8 b | 0.47 b | ||
淮稻5号 Huaidao 5 | 0.22 b | 198.53 b | 1561.4 b | 0.41 a | 2.32 c | 260.35 b | 2330.1 b | 0.56 a | ||
南粳9108 Nanjing 9108 | 0.20 b | 180.56 c | 1365.7 c | 0.41 a | 2.23 c | 185.35 c | 1895.0 c | 0.56 a |
Table 6. Root morphological characteristics of tested rice varieties at tillering stage under different nitrogen levels
氮处理 Nitrogen treatment | 品种 Variety | 移栽后15 d 15 DAT | 移栽后30 d 30 DAT | |||||||
---|---|---|---|---|---|---|---|---|---|---|
根干质量 Root dry weight (g/pot) | 根长 Root length (m/pot) | 根表面积 Root surface area (cm2/pot) | 根系直径 Root diameter (mm/pot) | 根干质量 Root dry weight (g/pot) | 根长 Root length (m/pot) | 根表面积 Root surface area (cm2/pot) | 根系直径 Root diameter (mm/pot) | |||
N1 | 汕优63 Shanyou 63 | 0.27 a | 205.97 a | 1614.4 a | 0.26 c | 2.54 a | 252.98 a | 2053.6 a | 0.44 b | |
两优培九Liangyoupeijiu | 0.29 a | 208.84 a | 1622.7 a | 0.26 c | 2.61 a | 251.09 a | 1995.3 b | 0.45 b | ||
R3012 | 0.27 a | 205.67 a | 1629.2 a | 0.28 bc | 2.57 a | 235.38 b | 1852.1 c | 0.46 b | ||
扬稻6号 Yangdao 6 | 0.18 b | 156.06 b | 1130.5 b | 0.29 b | 2.42 b | 206.16 c | 1538.6 d | 0.45 b | ||
淮稻5号 Huaidao 5 | 0.14 c | 155.47 b | 1121.2 b | 0.31 a | 1.36 c | 197.91 d | 1440.4 e | 0.48 a | ||
南粳9108 Nanjing 9108 | 0.14 c | 146.93 b | 1099.7 b | 0.32 a | 1.31 c | 191.20 d | 1404.5 e | 0.48 a | ||
N2 | 汕优63 Shanyou 63 | 0.29 a | 234.91 a | 1942.1 a | 0.31 b | 2.83 a | 315.73 a | 2596.2 a | 0.46 b | |
两优培九 Liangyoupeijiu | 0.30 a | 227.88 a | 1872.0 b | 0.31 b | 2.87 a | 296.21 b | 2612.1 a | 0.46 b | ||
R3012 | 0.28 a | 226.04 a | 1821.7 b | 0.32 b | 2.77 a | 292.90 b | 2583.2 a | 0.46 b | ||
扬稻6号 Yangdao 6 | 0.20 b | 178.40 b | 1327.3 c | 0.33 b | 2.21 b | 227.35 c | 2238.7 b | 0.46 b | ||
淮稻5号 Huaidao 5 | 0.19 b | 173.79 b | 1342.2 c | 0.36 a | 2.22 b | 225.29 c | 2246.9 b | 0.52 a | ||
南粳9108 Nanjing 9108 | 0.17 c | 165.02 b | 1239.3 d | 0.37 a | 2.24 b | 166.62 d | 1742.6 c | 0.53 a | ||
N3 | 汕优63 Shanyou 63 | 0.32 a | 267.22 a | 2212.4 a | 0.33 b | 3.11 a | 325.91 a | 2739.7 a | 0.46 b | |
两优培九 Liangyoupeijiu | 0.32 a | 262.45 a | 2170.9 a | 0.34 b | 3.08 a | 321.82 a | 2739.0 a | 0.46 b | ||
R3012 | 0.31 a | 260.31 a | 2165.3 a | 0.34 b | 2.94 b | 316.10 a | 2734.6 a | 0.46 b | ||
扬稻6号 Yangdao 6 | 0.23 b | 203.05 b | 1621.2 b | 0.35 b | 2.33 c | 263.78 b | 2334.8 b | 0.47 b | ||
淮稻5号 Huaidao 5 | 0.22 b | 198.53 b | 1561.4 b | 0.41 a | 2.32 c | 260.35 b | 2330.1 b | 0.56 a | ||
南粳9108 Nanjing 9108 | 0.20 b | 180.56 c | 1365.7 c | 0.41 a | 2.23 c | 185.35 c | 1895.0 c | 0.56 a |
氮处理 Nitrogen treatment | 品种 Variety | 每盆穗数 Panicles per pot (No./pot) | 每穗粒数 Spikelets per panicle | 千粒重 1000-grain weight (g) | 结实率 Seed setting rate (%) | 产量 Yield (g/pot) |
---|---|---|---|---|---|---|
N1 | 汕优63 Shanyou 63 | 15.00 a | 183.43 b | 27.33 a | 88.58 a | 49.31 a |
两优培九 Liangyoupeijiu | 14.50 a | 221.51 a | 23.06 c | 78.78 d | 45.08 b | |
R3012 | 13.00 b | 175.11 b | 26.50 ab | 78.09 de | 45.71 b | |
扬稻6号 Yangdao 6 | 11.00 c | 171.40 b | 26.06 ab | 81.01 c | 40.63 c | |
淮稻5号 Huaidao 5 | 9.00 d | 135.77 c | 25.60 b | 86.74 b | 36.65 d | |
南粳9108 Nanjing 9108 | 7.50 e | 169.92 b | 23.80 c | 77.38 e | 30.45 e | |
N2 | 汕优63 Shanyou 63 | 19.50 a | 214.66 b | 29.78 a | 89.37 a | 107.16 a |
两优培九 Liangyoupeijiu | 19.00 a | 231.15 a | 26.24 bc | 80.48 c | 102.76 b | |
R3012 | 17.50 b | 209.18 bc | 27.74 b | 85.62 b | 100.49 c | |
扬稻6号 Yangdao 6 | 15.50 c | 209.03 bc | 27.73 b | 87.00 b | 95.75 d | |
淮稻5号 Huaidao 5 | 13.00 d | 177.64 d | 27.46 b | 90.18 a | 80.74 e | |
南粳9108 Nanjing 9108 | 11.00 e | 199.40 c | 25.05 c | 79.85 c | 70.72 f | |
N3 | 汕优63 Shanyou 63 | 25.00 a | 224.57 b | 30.47 a | 90.01 a | 121.82 a |
两优培九 Liangyoupeijiu | 24.50 ab | 241.67 a | 26.52 c | 80.90 d | 112.76 b | |
R3012 | 23.50 b | 216.27 b | 28.31 b | 85.63 c | 111.15 b | |
扬稻6号 Yangdao 6 | 20.00 c | 215.80 b | 28.07 b | 87.07 b | 102.16 c | |
淮稻5号 Huaidao 5 | 17.50 d | 186.72 d | 27.49 bc | 90.27 a | 90.74 d | |
南粳9108 Nanjing 9108 | 17.00 d | 208.97 c | 25.16 d | 81.08 d | 80.10 e |
Table 7. Yield and its components of tested rice varieties under different nitrogen levels
氮处理 Nitrogen treatment | 品种 Variety | 每盆穗数 Panicles per pot (No./pot) | 每穗粒数 Spikelets per panicle | 千粒重 1000-grain weight (g) | 结实率 Seed setting rate (%) | 产量 Yield (g/pot) |
---|---|---|---|---|---|---|
N1 | 汕优63 Shanyou 63 | 15.00 a | 183.43 b | 27.33 a | 88.58 a | 49.31 a |
两优培九 Liangyoupeijiu | 14.50 a | 221.51 a | 23.06 c | 78.78 d | 45.08 b | |
R3012 | 13.00 b | 175.11 b | 26.50 ab | 78.09 de | 45.71 b | |
扬稻6号 Yangdao 6 | 11.00 c | 171.40 b | 26.06 ab | 81.01 c | 40.63 c | |
淮稻5号 Huaidao 5 | 9.00 d | 135.77 c | 25.60 b | 86.74 b | 36.65 d | |
南粳9108 Nanjing 9108 | 7.50 e | 169.92 b | 23.80 c | 77.38 e | 30.45 e | |
N2 | 汕优63 Shanyou 63 | 19.50 a | 214.66 b | 29.78 a | 89.37 a | 107.16 a |
两优培九 Liangyoupeijiu | 19.00 a | 231.15 a | 26.24 bc | 80.48 c | 102.76 b | |
R3012 | 17.50 b | 209.18 bc | 27.74 b | 85.62 b | 100.49 c | |
扬稻6号 Yangdao 6 | 15.50 c | 209.03 bc | 27.73 b | 87.00 b | 95.75 d | |
淮稻5号 Huaidao 5 | 13.00 d | 177.64 d | 27.46 b | 90.18 a | 80.74 e | |
南粳9108 Nanjing 9108 | 11.00 e | 199.40 c | 25.05 c | 79.85 c | 70.72 f | |
N3 | 汕优63 Shanyou 63 | 25.00 a | 224.57 b | 30.47 a | 90.01 a | 121.82 a |
两优培九 Liangyoupeijiu | 24.50 ab | 241.67 a | 26.52 c | 80.90 d | 112.76 b | |
R3012 | 23.50 b | 216.27 b | 28.31 b | 85.63 c | 111.15 b | |
扬稻6号 Yangdao 6 | 20.00 c | 215.80 b | 28.07 b | 87.07 b | 102.16 c | |
淮稻5号 Huaidao 5 | 17.50 d | 186.72 d | 27.49 bc | 90.27 a | 90.74 d | |
南粳9108 Nanjing 9108 | 17.00 d | 208.97 c | 25.16 d | 81.08 d | 80.10 e |
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