中国水稻科学 ›› 2021, Vol. 35 ›› Issue (4): 396-406.DOI: 10.16819/j.1001-7216.2021.210304
乔胜锋, 邓亚萍*(), 瞿寒冰, 张伟杨, 顾骏飞, 张耗, 刘立军, 王志琴, 杨建昌
收稿日期:
2021-03-05
修回日期:
2021-05-11
出版日期:
2021-07-10
发布日期:
2021-07-10
通讯作者:
邓亚萍
基金资助:
Shengfeng QIAO, Yaping DENG*(), Hanbing QU, Weiyang ZHANG, Junfei GU, Hao ZHANG, Lijun LIU, Zhiqin WANG, Jianchang YANG
Received:
2021-03-05
Revised:
2021-05-11
Online:
2021-07-10
Published:
2021-07-10
Contact:
Yaping DENG
摘要:
【目的】研究不同籼稻品种对低磷响应的差异及其农艺生理性状。【方法】以12个江苏省近80年来各阶段在生产上应用的具有代表性的中熟籼稻品种为材料,进行全生育期水培种植,设置低磷(磷浓度为标准营养液中磷浓度的1/20)处理,以正常磷处理(标准培养液配方)为对照。【结果】将耐低磷指数作为评价籼稻品种耐低磷性的指标,并将供试品种分为3类:强耐低磷品种(耐低磷指数≥0.9)、中耐低磷品种(0.5<耐低磷指数<0.9)、弱耐低磷品种(耐低磷指数≤0.5)。选择耐低磷性差异明显的强耐低磷品种2个以及弱耐低磷品种2个进行农艺与生理特征分析。与对照相比,低磷处理降低了各品种产量。与对照相比,低磷处理增加了水稻的磷素运转率(PTE)、磷产谷利用率(IPE)和磷收获指数(PHI),强耐低磷品种在低磷处理下的PTE和IPE高于弱耐低磷品种。与弱耐低磷品种相比,强耐低磷品种在低磷处理下具有较大的地上部干物质、根干质量和茎鞘中非结构性碳水化合物(NSC)积累和转运,根系氧化力降幅小,根系酸性磷酸酶活性增幅高,分蘖受抑制程度小,并能保持较大的叶面积指数以及孕穗灌浆期较高的光合速率。【结论】与弱耐低磷品种相比,在低磷处理下保持较高的干物质、NSC积累和运转、根系氧化力、根系酸性磷酸酶活性、光合速率以及磷素利用效率是强耐低磷品种重要的农艺与生理特征。
乔胜锋, 邓亚萍, 瞿寒冰, 张伟杨, 顾骏飞, 张耗, 刘立军, 王志琴, 杨建昌. 不同籼稻品种对低磷响应的差异及其农艺生理性状[J]. 中国水稻科学, 2021, 35(4): 396-406.
Shengfeng QIAO, Yaping DENG, Hanbing QU, Weiyang ZHANG, Junfei GU, Hao ZHANG, Lijun LIU, Zhiqin WANG, Jianchang YANG. Differences in Response to Low Phosphorus Stress Among indica Rice Varieties and Their Agronomic and Physiological Characteristics[J]. Chinese Journal OF Rice Science, 2021, 35(4): 396-406.
应用年代 Age of application | 品种 Variety | 株高类型 Plant height type | 生长期 Growth duration/d |
---|---|---|---|
1940–1950 | 黄瓜籼 Huangguaxian | 高秆 High stalk | 118 |
1940–1950 | 银条籼 Yintiaoxian | 高秆 High stalk | 117 |
1940–1950 | 南京1号 Nanjing 1 | 高秆 High stalk | 117 |
1960–1970 | 台中籼 Taizhongxian | 矮秆 Dwarf | 130 |
1960–1970 | 南京11 Nanjing 11 | 矮秆 Dwarf | 122 |
1960–1970 | 珍珠矮 Zhenzhuai | 矮秆 Dwarf | 127 |
1970–1980 | IR24 | 半矮秆 Semi dwarf | 122 |
1980–1990 | 扬稻2号 Yangdao 2 | 半矮秆 Semi dwarf | 145 |
1980–1990 | 扬稻6号 Yangdao 6 | 半矮秆 Semi dwarf | 146 |
1990–2000 | 扬两优6号 Yangliangyou 6 | 半矮秆杂交稻 Semi-dwarf hybrid rice | 153 |
2000– | 两优培九 Liangyoupeijiu | 半矮秆杂交稻 Semi-dwarf hybrid rice | 152 |
2000– | II优084 II you 084 | 半矮秆杂交稻 Semi-dwarf hybrid rice | 153 |
表1 供试品种
Table 1 Tested varieties.
应用年代 Age of application | 品种 Variety | 株高类型 Plant height type | 生长期 Growth duration/d |
---|---|---|---|
1940–1950 | 黄瓜籼 Huangguaxian | 高秆 High stalk | 118 |
1940–1950 | 银条籼 Yintiaoxian | 高秆 High stalk | 117 |
1940–1950 | 南京1号 Nanjing 1 | 高秆 High stalk | 117 |
1960–1970 | 台中籼 Taizhongxian | 矮秆 Dwarf | 130 |
1960–1970 | 南京11 Nanjing 11 | 矮秆 Dwarf | 122 |
1960–1970 | 珍珠矮 Zhenzhuai | 矮秆 Dwarf | 127 |
1970–1980 | IR24 | 半矮秆 Semi dwarf | 122 |
1980–1990 | 扬稻2号 Yangdao 2 | 半矮秆 Semi dwarf | 145 |
1980–1990 | 扬稻6号 Yangdao 6 | 半矮秆 Semi dwarf | 146 |
1990–2000 | 扬两优6号 Yangliangyou 6 | 半矮秆杂交稻 Semi-dwarf hybrid rice | 153 |
2000– | 两优培九 Liangyoupeijiu | 半矮秆杂交稻 Semi-dwarf hybrid rice | 152 |
2000– | II优084 II you 084 | 半矮秆杂交稻 Semi-dwarf hybrid rice | 153 |
处理 Treatment | 品种 Variety | 单位面积穗数 Number of panicles/(m-2) | 每穗粒数 Spikelet number per panicle | 千粒重 1000-grain weight/g | 结实率 Seed setting rate/% | 产量 Yield/(g·m-2) |
---|---|---|---|---|---|---|
低磷 | 黄瓜籼 Huangguaxian | 270.39 e | 91.18 f | 24.81 ef | 70.23 de | 429.58 e |
LP | 银条籼 Yintiaoxian | 324.69 a | 96.45 f | 25.31 e | 67.69 e | 536.52 d |
南京1号 Nanjing 1 | 234.78 h | 123.56 d | 24.53 f | 76.27 cd | 543.88 d | |
台中籼 Taizhongxian | 300.86 b | 106.63 e | 23.37 g | 79.06 bc | 597.74 cd | |
南京11 Nanjing 11 | 303.21 b | 90.20 f | 24.43 f | 84.40 ab | 563.92 d | |
珍珠矮 Zhenzhuai | 303.80 b | 93.14 f | 26.13 d | 79.44 bc | 587.36 cd | |
IR24 | 269.10 ef | 80.41 g | 24.91 ef | 66.14 e | 329.55 f | |
扬稻2号 Yangdao 2 | 294.11 c | 129.59 d | 26.89 c | 70.89 de | 726.54 b | |
扬稻6号 Yangdao 6 | 244.99 g | 123.38 d | 29.74 b | 72.11 de | 648.21 c | |
扬两优6号 Yangliangyou 6 | 237.13 h | 137.60 c | 30.74 a | 75.89 cd | 761.17 b | |
两优培九 Liangyoupeijiu | 281.14 d | 156.96 b | 26.06 d | 65.22 e | 749.99 b | |
Ⅱ优084 Ⅱyou 084 | 263.82 f | 192.20 a | 26.62 cd | 86.51 a | 1167.7 a | |
正常磷 | 黄瓜籼 Huangguaxian | 335.17 c | 113.20 g | 24.61 d | 67.82 de | 633.26 e |
NP | 银条籼 Yintiaoxian | 345.25 b | 112.77 g | 24.44 de | 67.30 def | 640.39 e |
南京1号 Nanjing 1 | 281.86 f | 137.01 e | 23.46 f | 72.28 c | 654.83 e | |
台中籼 Taizhongxian | 316.55 d | 123.96 f | 22.75 g | 77.55 b | 692.30 de | |
南京11 Nanjing 11 | 318.80 d | 126.37 f | 24.30 de | 77.48 b | 758.50 cd | |
珍珠矮 Zhenzhuai | 361.45 a | 111.19 g | 25.76 b | 71.43 cd | 739.50 cd | |
IR24 | 299.98 e | 101.17 h | 24.25 e | 59.18 g | 435.54 f | |
扬稻2号 Yangdao 2 | 299.98 e | 156.07 d | 25.24 c | 66.75 ef | 788.77 c | |
扬稻6号 Yangdao 6 | 264.69 g | 161.59 d | 27.93 a | 64.69 ef | 772.77 c | |
扬两优6号 Yangliangyou 6 | 280.87 f | 169.95 c | 27.67 a | 67.89 de | 896.67 b | |
两优培九 Liangyoupeijiu | 313.22 d | 185.71 b | 24.99 c | 62.99 fg | 915.64 b | |
Ⅱ优084 Ⅱyou 084 | 300.41 e | 210.01 a | 24.95 c | 83.45 a | 1310.44 a |
表2 不同磷水平下各品种产量及其构成因素
Table 2 Yield and its components of rice varieties under different phosphorus levels.
处理 Treatment | 品种 Variety | 单位面积穗数 Number of panicles/(m-2) | 每穗粒数 Spikelet number per panicle | 千粒重 1000-grain weight/g | 结实率 Seed setting rate/% | 产量 Yield/(g·m-2) |
---|---|---|---|---|---|---|
低磷 | 黄瓜籼 Huangguaxian | 270.39 e | 91.18 f | 24.81 ef | 70.23 de | 429.58 e |
LP | 银条籼 Yintiaoxian | 324.69 a | 96.45 f | 25.31 e | 67.69 e | 536.52 d |
南京1号 Nanjing 1 | 234.78 h | 123.56 d | 24.53 f | 76.27 cd | 543.88 d | |
台中籼 Taizhongxian | 300.86 b | 106.63 e | 23.37 g | 79.06 bc | 597.74 cd | |
南京11 Nanjing 11 | 303.21 b | 90.20 f | 24.43 f | 84.40 ab | 563.92 d | |
珍珠矮 Zhenzhuai | 303.80 b | 93.14 f | 26.13 d | 79.44 bc | 587.36 cd | |
IR24 | 269.10 ef | 80.41 g | 24.91 ef | 66.14 e | 329.55 f | |
扬稻2号 Yangdao 2 | 294.11 c | 129.59 d | 26.89 c | 70.89 de | 726.54 b | |
扬稻6号 Yangdao 6 | 244.99 g | 123.38 d | 29.74 b | 72.11 de | 648.21 c | |
扬两优6号 Yangliangyou 6 | 237.13 h | 137.60 c | 30.74 a | 75.89 cd | 761.17 b | |
两优培九 Liangyoupeijiu | 281.14 d | 156.96 b | 26.06 d | 65.22 e | 749.99 b | |
Ⅱ优084 Ⅱyou 084 | 263.82 f | 192.20 a | 26.62 cd | 86.51 a | 1167.7 a | |
正常磷 | 黄瓜籼 Huangguaxian | 335.17 c | 113.20 g | 24.61 d | 67.82 de | 633.26 e |
NP | 银条籼 Yintiaoxian | 345.25 b | 112.77 g | 24.44 de | 67.30 def | 640.39 e |
南京1号 Nanjing 1 | 281.86 f | 137.01 e | 23.46 f | 72.28 c | 654.83 e | |
台中籼 Taizhongxian | 316.55 d | 123.96 f | 22.75 g | 77.55 b | 692.30 de | |
南京11 Nanjing 11 | 318.80 d | 126.37 f | 24.30 de | 77.48 b | 758.50 cd | |
珍珠矮 Zhenzhuai | 361.45 a | 111.19 g | 25.76 b | 71.43 cd | 739.50 cd | |
IR24 | 299.98 e | 101.17 h | 24.25 e | 59.18 g | 435.54 f | |
扬稻2号 Yangdao 2 | 299.98 e | 156.07 d | 25.24 c | 66.75 ef | 788.77 c | |
扬稻6号 Yangdao 6 | 264.69 g | 161.59 d | 27.93 a | 64.69 ef | 772.77 c | |
扬两优6号 Yangliangyou 6 | 280.87 f | 169.95 c | 27.67 a | 67.89 de | 896.67 b | |
两优培九 Liangyoupeijiu | 313.22 d | 185.71 b | 24.99 c | 62.99 fg | 915.64 b | |
Ⅱ优084 Ⅱyou 084 | 300.41 e | 210.01 a | 24.95 c | 83.45 a | 1310.44 a |
品种 Variety | 耐低磷系数 Low-phosphorus tolerance coefficient | 耐低磷指数 Low-phosphorus tolerance index |
---|---|---|
黄瓜籼 Huangguaxian | 0.66 f | 0.44 g |
银条籼 Yintiaoxian | 0.82 bc | 0.67 ef |
南京1号 Nanjing 1 | 0.81 bc | 0.67 ef |
台中籼 Taizhongxian | 0.84 b | 0.76 de |
南京11 Nanjing 11 | 0.73 e | 0.64 f |
珍珠矮 Zhenzhuai | 0.78 cd | 0.70 ef |
IR24 | 0.75 de | 0.38 g |
扬稻2号 Yangdao 2 | 0.89 a | 0.99 b |
扬稻6号 Yangdao 6 | 0.83 b | 0.83 cd |
扬两优6号 Yangliangyou 6 | 0.84 b | 0.98 b |
两优培九 Liangyoupeijiu | 0.80 bc | 0.92 bc |
Ⅱ优084 Ⅱyou 084 | 0.90 a | 1.64 a |
表3 各品种的耐低磷系数和耐低磷指数
Table 3 Low phosphorus tolerance coefficient and low phosphorus tolerance index of varieties.
品种 Variety | 耐低磷系数 Low-phosphorus tolerance coefficient | 耐低磷指数 Low-phosphorus tolerance index |
---|---|---|
黄瓜籼 Huangguaxian | 0.66 f | 0.44 g |
银条籼 Yintiaoxian | 0.82 bc | 0.67 ef |
南京1号 Nanjing 1 | 0.81 bc | 0.67 ef |
台中籼 Taizhongxian | 0.84 b | 0.76 de |
南京11 Nanjing 11 | 0.73 e | 0.64 f |
珍珠矮 Zhenzhuai | 0.78 cd | 0.70 ef |
IR24 | 0.75 de | 0.38 g |
扬稻2号 Yangdao 2 | 0.89 a | 0.99 b |
扬稻6号 Yangdao 6 | 0.83 b | 0.83 cd |
扬两优6号 Yangliangyou 6 | 0.84 b | 0.98 b |
两优培九 Liangyoupeijiu | 0.80 bc | 0.92 bc |
Ⅱ优084 Ⅱyou 084 | 0.90 a | 1.64 a |
类型 Type | 品种 Variety |
---|---|
强耐低磷品种 Varieties with strong tolerance to low phosphorus | Ⅱ优084、扬两优6号、扬稻2号、两优培九 Ⅱyou 084, Yangliangyou 6, Yangdao 2, Liangyoupeijiu |
中耐低磷品种 Varieties with medium tolerance to low phosphorus | 台中籼、扬稻6号、南京1号、银条籼、珍珠矮、南京11 Taizhongxian , Yangdao 6, Nanjing 1, Yintiaoxian, Zhenzhuai, Nanjing 11 |
弱耐低磷品种 Varieties with weak tolerance to low phosphorus | 黄瓜籼、IR24 Huangguaxian, IR24 |
表4 各品种的耐低磷性分类
Table 4 Classification of low phosphorus tolerance of various varieties.
类型 Type | 品种 Variety |
---|---|
强耐低磷品种 Varieties with strong tolerance to low phosphorus | Ⅱ优084、扬两优6号、扬稻2号、两优培九 Ⅱyou 084, Yangliangyou 6, Yangdao 2, Liangyoupeijiu |
中耐低磷品种 Varieties with medium tolerance to low phosphorus | 台中籼、扬稻6号、南京1号、银条籼、珍珠矮、南京11 Taizhongxian , Yangdao 6, Nanjing 1, Yintiaoxian, Zhenzhuai, Nanjing 11 |
弱耐低磷品种 Varieties with weak tolerance to low phosphorus | 黄瓜籼、IR24 Huangguaxian, IR24 |
图1 不同磷水平下水稻的地上部干质量(A,B)、根干质量(C,D)和根冠比(E,F)同一测定时期内标以不同字母表示在0.05水平差异显著。LP和NP分别表示低磷处理和正常磷处理。下图同。
Fig. 1. Shoot dry weight (A, B), root dry weight (C, D) and root-shoot ratio (E, F) of rice under different phosphorus levels. Different letters above the column indicate statistical significance (P<0.05) within the same growing stage. LP and NP represent the low phosphorus treatment and the normal phosphorus treatment, respectively. The same as in figures below.
处理 Treatment | 品种 Variety | 茎蘖数Number of tillers and main stems/(m-2) | 茎蘖成穗率 Proportion of productive tillers/% | |||
---|---|---|---|---|---|---|
分蘖中期 Mid-tillering | 穗分化始期 Panicle initiation | 抽穗期 Heading | 成熟期 Maturity | |||
低磷 | IR24 | 163.96 e | 317.63 e | 308.81 d | 269.10 cd | 84.72 a |
LP | 黄瓜籼 Huangguaxian | 213.96 d | 386.53 d | 357.12 c | 270.39 cd | 69.95 c |
扬稻2号 Yangdao 2 | 257.34 c | 411.21 c | 401.00 b | 294.11 bc | 71.52 c | |
Ⅱ优084 Ⅱyou 084 | 220.58 d | 324.58 e | 315.55 d | 263.36 d | 81.10 b | |
正常磷 | IR24 | 340.78 b | 450.39 b | 417.20 b | 299.98 b | 66.60 d |
NP | 黄瓜籼 Huangguaxian | 392.13 a | 535.45 a | 508.37 a | 335.17 a | 63.82 d |
扬稻2号 Yangdao 2 | 389.16 a | 525.18 a | 508.37 a | 299.98 b | 56.02 e | |
Ⅱ优084 Ⅱyou 084 | 334.88 b | 421.52 c | 398.93 b | 300.41 b | 72.16 c |
表5 不同磷水平下水稻的茎蘖动态
Table 5 Dynamics of tillers and main stems of rice under different phosphorus levels.
处理 Treatment | 品种 Variety | 茎蘖数Number of tillers and main stems/(m-2) | 茎蘖成穗率 Proportion of productive tillers/% | |||
---|---|---|---|---|---|---|
分蘖中期 Mid-tillering | 穗分化始期 Panicle initiation | 抽穗期 Heading | 成熟期 Maturity | |||
低磷 | IR24 | 163.96 e | 317.63 e | 308.81 d | 269.10 cd | 84.72 a |
LP | 黄瓜籼 Huangguaxian | 213.96 d | 386.53 d | 357.12 c | 270.39 cd | 69.95 c |
扬稻2号 Yangdao 2 | 257.34 c | 411.21 c | 401.00 b | 294.11 bc | 71.52 c | |
Ⅱ优084 Ⅱyou 084 | 220.58 d | 324.58 e | 315.55 d | 263.36 d | 81.10 b | |
正常磷 | IR24 | 340.78 b | 450.39 b | 417.20 b | 299.98 b | 66.60 d |
NP | 黄瓜籼 Huangguaxian | 392.13 a | 535.45 a | 508.37 a | 335.17 a | 63.82 d |
扬稻2号 Yangdao 2 | 389.16 a | 525.18 a | 508.37 a | 299.98 b | 56.02 e | |
Ⅱ优084 Ⅱyou 084 | 334.88 b | 421.52 c | 398.93 b | 300.41 b | 72.16 c |
处理 Treatment | 品种 Variety | 抽穗期NSC NSC at heading/(kg·m-2) | 成熟期NSC NSC at maturity/(kg·m-2) | NSC转运率 NSC remobilized rate/% | NSC对籽粒的贡献率 NSC contribution to grain/% |
---|---|---|---|---|---|
低磷 | IR24 | 0.11 f | 0.09 f | 17.98 e | 6.34 d |
LP | 黄瓜籼 Huangguaxian | 0.16 de | 0.13 e | 22.39 d | 8.70 c |
扬稻2号 Yangdao 2 | 0.37 c | 0.24 c | 35.10 b | 22.00 a | |
Ⅱ优084 Ⅱyou 084 | 0.43 ab | 0.25 bc | 40.96 a | 15.81 b | |
正常磷 | IR24 | 0.13 ef | 0.11 ef | 15.65 e | 3.89 e |
NP | 黄瓜籼 Huangguaxian | 0.20 d | 0.17 d | 18.34 de | 5.69 de |
扬稻2号 Yangdao 2 | 0.39 bc | 0.28 ab | 28.62 c | 14.76 b | |
Ⅱ优084 Ⅱyou 084 | 0.44 a | 0.29 a | 33.80 b | 10.41 c |
表6 不同磷水平下水稻茎鞘中非结构性碳水化合物(NSC)的积累与运转
Table 6 Non-structural carbohydrate (NSC) in stems and sheath and NSC remobilization of rice under different phosphorus levels.
处理 Treatment | 品种 Variety | 抽穗期NSC NSC at heading/(kg·m-2) | 成熟期NSC NSC at maturity/(kg·m-2) | NSC转运率 NSC remobilized rate/% | NSC对籽粒的贡献率 NSC contribution to grain/% |
---|---|---|---|---|---|
低磷 | IR24 | 0.11 f | 0.09 f | 17.98 e | 6.34 d |
LP | 黄瓜籼 Huangguaxian | 0.16 de | 0.13 e | 22.39 d | 8.70 c |
扬稻2号 Yangdao 2 | 0.37 c | 0.24 c | 35.10 b | 22.00 a | |
Ⅱ优084 Ⅱyou 084 | 0.43 ab | 0.25 bc | 40.96 a | 15.81 b | |
正常磷 | IR24 | 0.13 ef | 0.11 ef | 15.65 e | 3.89 e |
NP | 黄瓜籼 Huangguaxian | 0.20 d | 0.17 d | 18.34 de | 5.69 de |
扬稻2号 Yangdao 2 | 0.39 bc | 0.28 ab | 28.62 c | 14.76 b | |
Ⅱ优084 Ⅱyou 084 | 0.44 a | 0.29 a | 33.80 b | 10.41 c |
图4 不同磷水平下水稻的根系氧化力(A,B)和根系酸性磷酸酶活性(C,D)
Fig. 4. Root oxidation activity (A, B) and root acid phosphatase activity (A, B) of rice under different phosphorus levels.
处理 Treatment | 品种 Variety | 分蘖中期 Mid-tillering/(g·m-2) | 穗分化始期 Panicle initiation/(g·m-2) | 抽穗期 Heading/(g·m-2) | 成熟期 Maturity/(g·m-2) |
---|---|---|---|---|---|
低磷 | IR24 | 0.07 e | 0.81 g | 0.84 h | 1.25 g |
LP | 黄瓜籼 Huangguaxian | 0.09 e | 0.96 fg | 1.32 g | 1.82 f |
扬稻2号 Yangdao 2 | 0.12 e | 1.14 f | 1.64 f | 2.07 f | |
Ⅱ优084 Ⅱyou 084 | 0.14 e | 1.62 e | 2.28 e | 2.93 e | |
正常磷 | IR24 | 0.70 d | 2.52 d | 2.72 d | 3.77 d |
NP | 黄瓜籼 Huangguaxian | 0.97 c | 2.79 c | 5.13 c | 5.95 c |
扬稻2号 Yangdao 2 | 1.11 b | 3.32 b | 6.64 b | 6.74 b | |
Ⅱ优084 Ⅱyou 084 | 1.51 a | 3.72 a | 7.84 a | 8.02 a |
表7 不同磷水平下水稻的磷含量
Table 7 Phosphorus content of rice under different phosphorus levels.
处理 Treatment | 品种 Variety | 分蘖中期 Mid-tillering/(g·m-2) | 穗分化始期 Panicle initiation/(g·m-2) | 抽穗期 Heading/(g·m-2) | 成熟期 Maturity/(g·m-2) |
---|---|---|---|---|---|
低磷 | IR24 | 0.07 e | 0.81 g | 0.84 h | 1.25 g |
LP | 黄瓜籼 Huangguaxian | 0.09 e | 0.96 fg | 1.32 g | 1.82 f |
扬稻2号 Yangdao 2 | 0.12 e | 1.14 f | 1.64 f | 2.07 f | |
Ⅱ优084 Ⅱyou 084 | 0.14 e | 1.62 e | 2.28 e | 2.93 e | |
正常磷 | IR24 | 0.70 d | 2.52 d | 2.72 d | 3.77 d |
NP | 黄瓜籼 Huangguaxian | 0.97 c | 2.79 c | 5.13 c | 5.95 c |
扬稻2号 Yangdao 2 | 1.11 b | 3.32 b | 6.64 b | 6.74 b | |
Ⅱ优084 Ⅱyou 084 | 1.51 a | 3.72 a | 7.84 a | 8.02 a |
处理 Treatment | 品种 Variety | PTE/% | IPE/(kg·kg-1) | PHE/% |
---|---|---|---|---|
低磷 | IR24 | 41.71 c | 264.37 c | 63.83 a |
LP | 黄瓜籼 Huangguaxian | 45.94 b | 236.65 d | 57.76 b |
扬稻2号 Yangdao 2 | 48.55 ab | 350.57 b | 53.70 cd | |
Ⅱ优084 Ⅱyou 084 | 51.51 a | 398.98 a | 57.06 bc | |
正常磷 | IR24 | 30.06 e | 115.51 f | 50.89 d |
NP | 黄瓜籼 Huangguaxian | 35.37 d | 106.33 f | 42.32 e |
扬稻2号 Yangdao 2 | 42.04 c | 117.02 f | 40.23 e | |
Ⅱ优084 Ⅱyou 084 | 41.77 c | 163.11 e | 41.23 e |
表8 不同磷水平下水稻的磷素运转率(PTE)、磷产谷利用率(IPE)和磷收获指数(PHE)
Table 8 Phosphorus translocation efficiency (PTE), internal phosphorus efficiency (IPE), and phosphorus harvest index (PHI) of rice under different phosphorus levels.
处理 Treatment | 品种 Variety | PTE/% | IPE/(kg·kg-1) | PHE/% |
---|---|---|---|---|
低磷 | IR24 | 41.71 c | 264.37 c | 63.83 a |
LP | 黄瓜籼 Huangguaxian | 45.94 b | 236.65 d | 57.76 b |
扬稻2号 Yangdao 2 | 48.55 ab | 350.57 b | 53.70 cd | |
Ⅱ优084 Ⅱyou 084 | 51.51 a | 398.98 a | 57.06 bc | |
正常磷 | IR24 | 30.06 e | 115.51 f | 50.89 d |
NP | 黄瓜籼 Huangguaxian | 35.37 d | 106.33 f | 42.32 e |
扬稻2号 Yangdao 2 | 42.04 c | 117.02 f | 40.23 e | |
Ⅱ优084 Ⅱyou 084 | 41.77 c | 163.11 e | 41.23 e |
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