Chinese Journal OF Rice Science ›› 2017, Vol. 31 ›› Issue (6): 611-618.DOI: 10.16819/j.1001-7216.2017.7009 611
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Ke LIU1,2, Chang YE1,2, Shaowen LIU2, Jian LU2, Mengtao GAO2, Bilin LU1,2, Xiaohai TIAN1,2, Yunbo ZHANG1,2,3,*()
Received:
2017-01-18
Revised:
2017-04-27
Online:
2017-11-25
Published:
2017-11-10
Contact:
Yunbo ZHANG
刘科1,2, 叶昌1,2, 刘少文2, 陆键2, 高梦涛2, 卢碧林1,2, 田小海1,2, 张运波1,2,3,*()
通讯作者:
张运波
基金资助:
CLC Number:
Ke LIU, Chang YE, Shaowen LIU, Jian LU, Mengtao GAO, Bilin LU, Xiaohai TIAN, Yunbo ZHANG. Dynamic Growth Characteristics of Roots of Mechanically-transplanted Hybrid Rice Under Different Nitrogen Treatments[J]. Chinese Journal OF Rice Science, 2017, 31(6): 611-618.
刘科, 叶昌, 刘少文, 陆键, 高梦涛, 卢碧林, 田小海, 张运波. 不同氮肥处理下机插杂交稻的根系动态生长特征研究[J]. 中国水稻科学, 2017, 31(6): 611-618.
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URL: http://www.ricesci.cn/EN/10.16819/j.1001-7216.2017.7009 611
年份与品种 Year and combination | 氮肥处理 Nitrogen level | 结实率 Seed setting rate/% | 有效穗数 Productive panicle number per m2 | 每穗粒数 Spikelet number per panicle | 千粒重 1000-grain weight/g | 产量 Grain yield /(t·hm-2) |
---|---|---|---|---|---|---|
2014 | ||||||
全两优1号 Quanliangyou 1 | N0 | 87.5±0.7 a | 175.2±20.4 b | 165.2±11.6 b | 27.5±0.05 a | 6.3±0.23 c |
N1 | 86.1±0.3 b | 214.4±14.0 a | 184.2±14.0 ab | 27.3±0.05 ab | 9.1±0.20 b | |
N2 | 83.1±0.8 b | 247.1±11.3 a | 200.1±10.7 a | 27.2±0.05 b | 9.5±0.15 a | |
全两优681 Quanliangyou 681 | N0 | 87.9±0.4 a | 191.2±22.9 b | 171.8±11.7 a | 27.5±0.06 a | 6.3±0.06 c |
N1 | 86.7±1.3 a | 229.5±17.4 ab | 189.5±14.2 a | 27.3±0.04 b | 9.1±0.13 b | |
N2 | 83.4±0.6 b | 258.4±13.5 a | 198.6±19.2 a | 27.2±0.06 b | 10.1±0.16 a | |
2015 | ||||||
全两优1号Quanliangyou 1 | N0 | 86.2±0.7 a | 168.1±13.9 b | 163.1±11.1 b | 27.4±0.05 a | 6.1±0.25 b |
N1 | 85.4±0.6 a | 217.7±13.3 a | 179.8±10.0 ab | 27.2±0.02 a | 8.8±0.31 a | |
N2 | 81.5±0.7 b | 247.6±14.9 a | 190.3±12.2 a | 27.1±0.03 b | 9.3±0.16 a | |
全两优681 Quanliangyou 681 | N0 | 84.6±1.1 a | 189.2±14.8 b | 158.1±12.1 b | 27.4±0.29 a | 6.3±0.16 c |
N1 | 82.3±1.4 a | 227.6±15.7 ab | 171.7±15.1 ab | 27.3±0.07 a | 8.8±0.13 b | |
N2 | 79.5±0.9 b | 256.4±17.3 a | 189.8±7.8 a | 27.1±0.09 a | 9.3±0.17 a |
Table 1 Effects of different nitrogen levels on grain yield and its components in hybrid rice combinations.
年份与品种 Year and combination | 氮肥处理 Nitrogen level | 结实率 Seed setting rate/% | 有效穗数 Productive panicle number per m2 | 每穗粒数 Spikelet number per panicle | 千粒重 1000-grain weight/g | 产量 Grain yield /(t·hm-2) |
---|---|---|---|---|---|---|
2014 | ||||||
全两优1号 Quanliangyou 1 | N0 | 87.5±0.7 a | 175.2±20.4 b | 165.2±11.6 b | 27.5±0.05 a | 6.3±0.23 c |
N1 | 86.1±0.3 b | 214.4±14.0 a | 184.2±14.0 ab | 27.3±0.05 ab | 9.1±0.20 b | |
N2 | 83.1±0.8 b | 247.1±11.3 a | 200.1±10.7 a | 27.2±0.05 b | 9.5±0.15 a | |
全两优681 Quanliangyou 681 | N0 | 87.9±0.4 a | 191.2±22.9 b | 171.8±11.7 a | 27.5±0.06 a | 6.3±0.06 c |
N1 | 86.7±1.3 a | 229.5±17.4 ab | 189.5±14.2 a | 27.3±0.04 b | 9.1±0.13 b | |
N2 | 83.4±0.6 b | 258.4±13.5 a | 198.6±19.2 a | 27.2±0.06 b | 10.1±0.16 a | |
2015 | ||||||
全两优1号Quanliangyou 1 | N0 | 86.2±0.7 a | 168.1±13.9 b | 163.1±11.1 b | 27.4±0.05 a | 6.1±0.25 b |
N1 | 85.4±0.6 a | 217.7±13.3 a | 179.8±10.0 ab | 27.2±0.02 a | 8.8±0.31 a | |
N2 | 81.5±0.7 b | 247.6±14.9 a | 190.3±12.2 a | 27.1±0.03 b | 9.3±0.16 a | |
全两优681 Quanliangyou 681 | N0 | 84.6±1.1 a | 189.2±14.8 b | 158.1±12.1 b | 27.4±0.29 a | 6.3±0.16 c |
N1 | 82.3±1.4 a | 227.6±15.7 ab | 171.7±15.1 ab | 27.3±0.07 a | 8.8±0.13 b | |
N2 | 79.5±0.9 b | 256.4±17.3 a | 189.8±7.8 a | 27.1±0.09 a | 9.3±0.17 a |
Fig. 5. Effects of different nitrogen treatments on total root numbers(A), total root length(B), total root volume(C) and total root surface area(D) at different soil layers in mechanically transplanted hybrid rice.
根系参数 Root system parameter | 土层深度 Soil layer | 结实率 Seed setting rate | 每平方米有效穗数 Panicle number per m2 | 每穗粒数 Spikelet number per panicle | 千粒重 1000-grain weight | 产量 Grain yield |
---|---|---|---|---|---|---|
总根长(TRL) | L0-10 | 0.31 | 0.56 | 0.48 | 0.03 | 0.05 |
L10-20 | -0.95** | 0.86* | 0.39 | -0.73 | 0.80* | |
L20-30 | -0.80* | 0.83* | 0.31 | -0.63 | 0.76* | |
根数(TRN) | L0-10 | -0.76* | 0.63 | 0.52 | -0.87** | 0.76* |
L10-20 | -0.93* | 0.83* | 0.47 | -0.93* | 0.87* | |
L20-30 | -0.94* | 0.82* | 0.41 | -0.94* | 0.84* | |
根表面积(TRSA) | L0-10 | -0.61 | 0.83* | 0.05 | -0.46* | 0.73 |
L10-20 | -0.96** | 0.86* | 0.12 | -0.50 | 0.57 | |
L20-30 | -0.51 | 0.49 | 0.61 | -0.60 | 0.89** | |
根体积(TRV) | L0-10 | -0.92** | 0.82* | 0.42 | -0.83* | 0.86* |
L10-20 | -0.98** | 0.86* | 0.36 | -0.74 | 0.77* | |
L20-30 | -0.34 | 0.36 | 0.60 | -0.56 | 0.83* |
Table 2 Relationship between root characteristics in different soil layers and grain yield and its components.
根系参数 Root system parameter | 土层深度 Soil layer | 结实率 Seed setting rate | 每平方米有效穗数 Panicle number per m2 | 每穗粒数 Spikelet number per panicle | 千粒重 1000-grain weight | 产量 Grain yield |
---|---|---|---|---|---|---|
总根长(TRL) | L0-10 | 0.31 | 0.56 | 0.48 | 0.03 | 0.05 |
L10-20 | -0.95** | 0.86* | 0.39 | -0.73 | 0.80* | |
L20-30 | -0.80* | 0.83* | 0.31 | -0.63 | 0.76* | |
根数(TRN) | L0-10 | -0.76* | 0.63 | 0.52 | -0.87** | 0.76* |
L10-20 | -0.93* | 0.83* | 0.47 | -0.93* | 0.87* | |
L20-30 | -0.94* | 0.82* | 0.41 | -0.94* | 0.84* | |
根表面积(TRSA) | L0-10 | -0.61 | 0.83* | 0.05 | -0.46* | 0.73 |
L10-20 | -0.96** | 0.86* | 0.12 | -0.50 | 0.57 | |
L20-30 | -0.51 | 0.49 | 0.61 | -0.60 | 0.89** | |
根体积(TRV) | L0-10 | -0.92** | 0.82* | 0.42 | -0.83* | 0.86* |
L10-20 | -0.98** | 0.86* | 0.36 | -0.74 | 0.77* | |
L20-30 | -0.34 | 0.36 | 0.60 | -0.56 | 0.83* |
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