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作物学报 ›› 2020, Vol. 46 ›› Issue (5): 772-786.doi: 10.3724/SP.J.1006.2020.92051

• 耕作栽培·生理生化 • 上一篇    下一篇

甬优系列籼粳杂交稻产量及氮素吸收利用的差异

周磊,刘秋员,田晋钰,朱梦华,程爽,车阳,王志杰,邢志鹏,胡雅杰,刘国栋,魏海燕(),张洪程()   

  1. 扬州大学江苏省作物遗传生理重点实验室 / 农业部长江流域稻作技术创新中心 / 粮食作物现代产业技术协同创新中心, 江苏扬州 225009
  • 收稿日期:2019-10-08 接受日期:2020-01-15 出版日期:2020-05-12 网络出版日期:2020-02-13
  • 通讯作者: 魏海燕,张洪程
  • 作者简介:E-mail:1074174043@qq.com
  • 基金资助:
    本研究由国家重点研发计划项目(2016YFD0300503);国家自然科学基金项目(31971841);国家现代农业产业技术体系建设专项(CARS-01-27);江苏省重点研发计划项目(BE2016344);江苏省重点研发计划项目(BE2018355);江苏省农业产业技术体系专项(JATS[2018]298);扬州大学拔尖人才计划资助.

Differences in yield and nitrogen absorption and utilization of indica-japonica hybrid rice varieties of Yongyou series

Lei ZHOU,Qiu-Yuan LIU,Jin-Yu TIAN,Meng-Hua ZHU,Shuang CHENG,Yang CHE,Zhi-Jie WANG,Zhi-Peng XING,Ya-Jie HU,Guo-Dong LIU,Hai-Yan WEI(),Hong-Cheng ZHANG()   

  1. Jiangsu Key Laboratory of Crop Genetics and Physiology / Innovation Center of Rice Cultivation Technology in Yangtze Valley, Ministry of Agriculture / Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, Jiangsu, China
  • Received:2019-10-08 Accepted:2020-01-15 Published:2020-05-12 Published online:2020-02-13
  • Contact: Hai-Yan WEI,Hong-Cheng ZHANG
  • Supported by:
    This study was supported by the National Key Research and Development Program of China(2016YFD0300503);the National Natural Science Foundation of China(31971841);the China Agriculture Research System(CARS-01-27);the Key Research Program of Jiangsu Province(BE2016344);the Key Research Program of Jiangsu Province(BE2018355);the earmarked fund for Jiangsu Agricultural Industry Technology System (JATS[2018]298)(JATS[2018]298);the Program for Scientific Elitists of Yangzhou University.

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摘要：

从24个甬优系列籼粳杂交稻品种(系)中, 根据不同产量水平和氮素农学利用率筛选出具有代表性的3种类型(高产氮高效,高产氮中效,中产氮中效), 系统比较各类型产量和氮素农学利用率, 以探究高产氮高效型籼粳杂交稻产量和氮素吸收利用特征.结果表明, 高产氮高效型产量显著高于高产氮中效型和中产氮中效型, 分别高4.04%~4.38%和13.37%~13.41%, 其高产原因在于群体颖花量大, 能达到5.87×10 8~6.20×10 8 hm -2.与高产氮中效型和中产氮中效型相比, 高产氮高效型成穗率高, 能保持在68.83%~70.05%; 抽穗期叶面积指数高, 且生育后期衰减平缓, 成熟期叶面积指数在3.85以上; 抽穗至成熟期干物质积累量大, 达7.91~7.99 t hm -2, 全生育期干物质量可达21.15~21.46 t hm -2.在氮素吸收利用方面, 高产氮高效型总吸氮量显著高于高产氮中效型和中产氮中效型, 分别高5.07%~5.14%和4.50%~5.96%; 拔节至抽穗期和抽穗至成熟期氮素吸收速率表现为高产氮高效型>高产氮中效型>中产氮中效型, 花后茎鞘氮素转运量,穗部氮素积累量和氮素收获指数也有相同表现; 氮素回收利用率,农学利用率,生理利用率和偏生产力均以高产氮高效型最高; 高产氮中效型除氮素回收利用率和百千克籽粒吸氮量外, 其他各项氮素利用指标均高于中产氮中效型.

关键词: 甬优系列籼粳杂交稻, 高产氮高效, 产量, 氮素

Abstract:

A field experiment was conducted with 24 indica-japonica hybrid rice varieties (lines) of Yongyou series, from which three types (high yield and high AE (agronomic nitrogen use efficiency) [HH], high yield and medium AE [HM], medium yield and medium AE [MM]) were selected to explore the characteristics of varieties with high yield and high AE. The yield of HH type was 4.04%-4.38% and 13.37%-13.41% higher than that of HM type and MM type respectively, owing to the larger number of total spikelets, which was 5.87×10 8-6.20×10 8 hm -2. Compared with HM and MM type, HH type had a high percentage of tiller rate, which was 68.83%-70.05%. The LAI of HH type was maximum at heading stage and declined slowly after heading. As a result, the LAI of HH type was above 3.85 at maturity stage. The dry matter accumulation of HH type was 7.91-7.99 t hm -2from heading to maturity, which was the highest in three types, and its dry matter accumulation was more than 21.15-21.46 t hm -2 in the whole growth period. The total nitrogen uptake of HH type showed 5.07%-5.14% and 4.50%-5.96% increase than that of HM type and MM type respectively at maturity stage. The nitrogen sbsorption rate from jointing to heading stage and from heading to maturity stage showed HH type > HM type > MM type, as well as NTSH (N transportation from stem after heading), NIPH (N increase in panicle after heading) and NHI (N harvest index). HH type had the highest NRE (nitrogen recovery use efficiency), AE, PE (physiological nitrogen use efficiency) and PFP (partial factor productivity of applied N). Expect for NRE and NRG (nitrogen requirement for 100 kg grain), all the other nitrogen utilization indexes of HM type were higher than that of MM type.

Key words: indica-japonica hybrid rice varieties of Yongyou series, high yield and high agronomic nitrogen use efficiency, yield, nitrogen

表1

甬优系列籼粳杂交稻产量及氮素农学利用率的差异..."

品种名称/年份
Variety/year		 2017 2018
产量
Yield (t hm-2)		 氮素农学利用率
AE (kg kg-1)		 产量
Yield (t hm-2)		 氮素农学利用率
AE (kg kg-1)
甬优1206 Yongyou 1206 8.80 10.84 8.96 12.68
甬优1218 Yongyou 1218 9.16 11.56 9.19 10.47
甬优1271 Yongyou 1271 8.62 11.15 8.77 12.23
甬优1526 Yongyou 1526 9.59 12.56 9.71 13.46
甬优1662 Yongyou 1662 11.13 18.81 11.21 19.18
甬优1826 Yongyou 1826 9.60 13.43 9.56 12.36
甬优2519 Yongyou 2519 9.54 10.44 9.45 12.12
甬优2640 Yongyou 2640 10.69 15.88 10.77 16.94
甬优4949 Yongyou 4949 11.03 18.60 11.18 19.14
甬优4953 Yongyou 4953 10.62 15.99 10.67 16.52
甬优6715 Yongyou 6715 9.77 14.79 9.89 15.94
甬优6760 Yongyou 6760 9.76 15.09 9.85 15.43
甬优6763 Yongyou 6763 10.24 16.95 10.09 15.37
甬优7053 Yongyou 7053 8.80 11.38 8.85 12.01
甬优7722 Yongyou 7722 9.05 12.22 9.11 11.52
甬优8484 Yongyou 8484 8.88 9.32 9.03 9.43
平均 Mean 9.71 13.69 9.77 14.05
标准差 SD 0.80 2.87 0.79 2.86
变异系数CV (%) 8.22 20.98 8.07 20.34

表2

甬优系列籼粳杂交稻产量及构成因素的差异..."

品种类型
Type		 品种名称
Variety		 单位面积穗数
No. of panicles
(×104 hm-2)		 每穗粒数
Spikelets
per panicle		 总颖花量
Total spikelet number
(×108 hm-2)		 结实率
Percentage of filled grain (%)		 千粒重
1000-grain weight
(g)		 产量
Yield
(t hm-2)
2017
高产氮高效 甬优1662 Yongyou 1662 241.03 243.40 5.87 81.87 24.18 11.13
HH 甬优4949 Yongyou 4949 238.39 246.23 5.87 82.33 23.90 11.03
高产氮中效 甬优2640 Yongyou 2640 234.00 221.41 5.18 85.70 24.20 10.69
HM 甬优4953 Yongyou 4953 237.08 224.75 5.33 86.04 23.67 10.62
中产氮中效 甬优6715 Yongyou 6715 218.27 215.33 4.70 81.35 28.65 9.77
MM 甬优6760 Yongyou 6760 219.08 214.78 4.71 82.02 28.47 9.76
HH平均值 HH mean 239.71 a 244.82 a 5.87 a 82.10 b 24.04 b 11.08 a
HM平均值 HM mean 235.54 a 223.08 b 5.26 b 85.87 a 23.83 b 10.65 b
MM平均值 MM mean 218.68 b 215.05 c 4.71 c 81.68 b 28.56 a 9.77 c
2018
高产氮高效 甬优1662 Yongyou 1662 246.08 253.38 6.24 79.46 24.17 11.21
HH 甬优4949 Yongyou 4949 240.37 256.14 6.16 79.56 23.96 11.18
高产氮中效 甬优2640 Yongyou 2640 232.03 232.33 5.39 84.38 24.51 10.77
HM 甬优4953 Yongyou 4953 228.30 229.73 5.24 85.68 24.07 10.67
中产氮中效 甬优6715 Yongyou 6715 215.91 220.75 4.77 80.91 28.65 9.89
MM 甬优6760 Yongyou 6760 217.81 216.80 4.72 80.67 28.47 9.85
HH平均值 HH mean 243.23 a 254.76 a 6.20 a 79.51 b 24.07 b 11.19 a
HM平均值 HM mean 230.16 b 231.03 b 5.32 b 85.03 a 24.29 b 10.72 b
MM平均值 MM mean 216.86 c 218.77 c 4.74 c 80.79 b 28.56 a 9.87 c

表3

甬优系列籼粳杂交稻株高及茎蘖动态的差异..."

品种类型
Type		 品种名称
Variety		 株高
Plant height
(cm)		 高峰苗
Peak seeding
(×104 hm-2)		 单位面积穗数
No. of panicles
(×104 hm-2)		 成穗率
RPTT
(%)
2017
高产氮高效 甬优1662 Yongyou 1662 110.4 347.06 241.03 69.45
HH 甬优4949 Yongyou 4949 111.8 349.49 238.39 68.21
高产氮中效 甬优2640 Yongyou 2640 114.5 351.42 234.00 66.59
HM 甬优4953 Yongyou 4953 116.6 352.78 237.08 67.20
中产氮中效 甬优6715 Yongyou 6715 122.6 357.97 218.27 60.97
MM 甬优6760 Yongyou 6760 121.8 358.65 219.08 61.08
HH平均值 HH mean 111.10 b 348.27 c 239.71 a 68.83 a
HM平均值 HM mean 115.55 b 352.10 b 235.54 a 66.89 a
MM平均值 MM mean 122.20 a 358.31 a 218.68 b 61.03 b
2018
高产氮高效 甬优1662 Yongyou 1662 109.7 349.25 246.08 70.46
HH 甬优4949 Yongyou 4949 110.5 345.16 240.37 69.64
高产氮中效 甬优2640 Yongyou 2640 113.8 351.12 232.03 66.08
HM 甬优4953 Yongyou 4953 115.7 350.58 228.30 65.12
中产氮中效 甬优6715 Yongyou 6715 122.7 360.03 215.91 59.97
MM 甬优6760 Yongyou 6760 122.4 357.36 217.81 60.95
HH平均值 HH mean 110.10 c 348.70 b 243.23 a 70.05 a
HM平均值 HM mean 114.75 b 350.85 b 230.16 b 65.60 b
MM平均值 MM mean 122.55 a 358.70 a 216.86 c 60.46 c

表4

甬优系列籼粳杂交稻各生育阶段物质积累及其比例的差异..."

品种类型
Type		 品种名称
Variety		 移栽-拔节 T-J 拔节-抽穗 J-H 抽穗-成熟 H-M 群体总
干物重
Total dry matter
accumulation
(t hm-2)		 收获指数
Harvest
index
积累量
Accumulate
(t hm-2)		 比例
RBT
(%)		 积累量
Accumulate
(t hm-2)		 比例
RBT
(%)		 积累量
Accumulate
(t hm-2)		 比例
RBT
(%)
2017
高产氮高效 甬优1662 Yongyou 1662 4.62 21.82 8.60 40.56 7.97 37.62 21.19 0.5251
HH 甬优4949 Yongyou 4949 4.67 22.11 8.59 40.71 7.85 37.17 21.11 0.5226
高产氮中效 甬优2640 Yongyou 2640 4.73 22.81 8.40 40.55 7.59 36.64 20.72 0.5160
HM 甬优4953 Yongyou 4953 4.70 22.64 8.54 41.13 7.53 36.23 20.77 0.5112
中产氮中效 甬优6715 Yongyou 6715 5.00 25.42 8.13 41.33 6.54 33.25 19.67 0.4964
MM 甬优6760 Yongyou 6760 4.95 25.28 8.10 41.33 6.54 33.39 19.59 0.4978
HH平均值 HH mean 4.64 b 21.97 b 8.60 a 40.63 a 7.91 a 37.40 a 21.15 a 0.5239 a
HM平均值 HM mean 4.72 b 22.73 b 8.47 a 40.84 a 7.56 b 36.44 a 20.75 b 0.5136 ab
MM平均值 MM mean 4.97 a 25.35 a 8.11 b 41.33 a 6.54 c 33.32 b 19.63 c 0.4971 b
2018
高产氮高效 甬优1662 Yongyou 1662 4.82 22.45 8.64 40.22 8.02 37.33 21.48 0.5218
HH 甬优4949 Yongyou 4949 4.79 22.36 8.68 40.49 7.97 37.16 21.44 0.5213
高产氮中效 甬优2640 Yongyou 2640 4.81 23.19 8.59 41.42 7.34 35.39 20.74 0.5192
HM 甬优4953 Yongyou 4953 4.85 23.27 8.52 40.91 7.46 35.82 20.83 0.5121
中产氮中效 甬优6715 Yongyou 6715 5.11 25.93 8.19 41.54 6.41 32.54 19.71 0.5018
MM 甬优6760 Yongyou 6760 5.17 26.26 8.07 40.97 6.45 32.77 19.69 0.5002
HH平均值 HH mean 4.80 b 22.41 c 8.66 a 40.35 a 7.99 a 37.24 a 21.46 a 0.5216 a
HM平均值 HM mean 4.83 b 23.23 b 8.56 a 41.17 a 7.40 b 35.60 b 20.78 b 0.5156 a
MM平均值 MM mean 5.14 a 26.09 a 8.13 b 41.26 a 6.43 c 32.65 c 19.70 c 0.5010 b

表5

甬优系列籼粳杂交稻各生育期叶面积指数和结实期叶面积衰减率的差异..."

品种类型
Type		 品种名称
Variety		 叶面积指数 LAI 结实期叶面积衰减率
DRLA (LAI d-1)
拔节期 Jointing 抽穗期 Heading 成熟期 Maturity
2017
高产氮高效 甬优1662 Yongyou 1662 4.33 8.44 3.89 0.0771
HH 甬优4949 Yongyou 4949 4.35 8.42 3.84 0.0790
高产氮中效 甬优2640 Yongyou 2640 4.41 8.29 3.72 0.0816
HM 甬优4953 Yongyou 4953 4.37 8.32 3.75 0.0816
中产氮中效 甬优6715 Yongyou 6715 4.55 8.21 3.51 0.0940
MM 甬优6760 Yongyou 6760 4.49 8.18 3.49 0.0938
HH平均值 HH mean 4.34 b 8.43 a 3.87 a 0.0780 c
HM平均值 HM mean 4.39 b 8.31 b 3.73 b 0.0816 b
MM平均值 MM mean 4.52 a 8.19 c 3.50 c 0.0939 a
2018
高产氮高效 甬优1662 Yongyou 1662 4.39 8.53 3.88 0.0816
HH 甬优4949 Yongyou 4949 4.37 8.57 3.81 0.0821
高产氮中效 甬优2640 Yongyou 2640 4.32 8.43 3.75 0.0836
HM 甬优4953 Yongyou 4953 4.35 8.39 3.79 0.0807
中产氮中效 甬优6715 Yongyou 6715 4.49 8.34 3.45 0.0959
MM 甬优6760 Yongyou 6760 4.52 8.31 3.46 0.0951
HH平均值 HH mean 4.38 b 8.55 a 3.85 a 0.0818 b
HM平均值 HM mean 4.34 b 8.41 b 3.77 a 0.0821 b
MM平均值 MM mean 4.51 a 8.32 b 3.45 b 0.0955 a

表6

甬优系列籼粳杂交稻光合势,群体生长率及净同化率的差异..."

品种类型
Type		 品种名称
Variety		 光合势Photosynthetic potential (m2 d m-2) 群体生长率Crop growth rate
(g m-2 d-1)		 净同化率Net assimilation rate
(g m-2 d-1)
移栽-拔节 拔节-抽穗 抽穗-成熟 移栽-拔节 拔节-抽穗 抽穗-成熟 移栽-拔节 拔节-抽穗 抽穗-成熟
T-J J-H H-M T-J J-H H-M T-J J-H H-M
2017
高产氮高效HH 甬优1662 Yongyou 1662 103.92 166.01 363.74 9.63 33.07 13.51 3.26 5.37 2.30
移栽-拔节 拔节-抽穗 抽穗-成熟 移栽-拔节 拔节-抽穗 抽穗-成熟 移栽-拔节 拔节-抽穗 抽穗-成熟
T-J J-H H-M T-J J-H H-M T-J J-H H-M
甬优4949 Yongyou 4949 106.58 166.01 355.54 9.52 33.05 13.53 3.22 5.36 2.32
高产氮中效
HM		 甬优2640 Yongyou 2640 108.05 171.45 336.28 9.64 31.11 13.55 3.25 5.06 2.38
甬优4953 Yongyou 4953 107.07 171.32 337.96 9.60 31.65 13.44 3.24 5.16 2.34
中产氮中效
MM		 甬优6715 Yongyou 6715 116.03 185.02 293.00 9.81 28.05 13.09 3.27 4.52 2.37
甬优6760 Yongyou 6760 112.25 183.72 297.59 9.91 27.94 12.83 3.31 4.54 2.33
HH平均值
HH mean		 105.25 a 166.01 c 359.64 a 9.57 a 33.06 a 13.52 a 3.24 a 5.36 a 2.31 a
HM平均值
HM mean		 107.56 a 171.38 b 337.12 b 9.62 a 31.38 b 13.49 a 3.24 a 5.11 b 2.36 a
MM平均值
MM mean		 114.14 a 184.37 a 295.30 c 9.86 a 28.00 c 12.96 b 3.29 a 4.53 c 2.35 a
2018
高产氮高效
HH		 甬优1662 Yongyou 1662 107.56 174.42 353.69 9.84 32.00 14.07 3.32 5.13 2.38
甬优4949 Yongyou 4949 107.07 168.22 359.02 9.79 33.40 13.74 3.30 5.36 2.34
高产氮中效
HM		 甬优2640 Yongyou 2640 105.84 172.13 341.04 9.82 31.82 13.11 3.33 5.18 2.27
甬优4953 Yongyou 4953 106.58 165.62 347.13 9.89 32.78 13.10 3.34 5.33 2.26
中产氮中效
MM		 甬优6715 Yongyou 6715 114.50 179.62 300.65 10.02 29.24 12.57 3.35 4.70 2.27
甬优6760 Yongyou 6760 115.26 179.62 300.14 10.14 28.81 12.65 3.38 4.63 2.29
HH平均值
HH mean		 107.32 b 171.32 a 356.36 a 9.81 a 32.70 a 13.90 a 3.31 a 5.24 a 2.36 a
HM平均值
HM mean		 106.21 b 168.88 a 344.08 b 9.85 a 32.30 a 13.10 b 3.34 a 5.26 a 2.27 b
MM平均值
MM mean		 114.88 a 179.62 a 300.39 c 10.08 a 29.02 b 12.61 b 3.37 a 4.66 b 2.28 ab

表7

甬优系列籼粳杂交稻各生育阶段氮素积累量及比例和氮素吸收速率的差异..."

品种类型
Type		 品种名称
Cultivar		 移栽-拔节 T-J 拔节-抽穗 J-H 抽穗-成熟 H-M 总吸氮量
Total N accumulation
(kg hm-2)
积累量
Accumulate
(kg hm-2)		 所占比例
RIT
(%)		 吸收速率
Uptake rate
(kg hm-2 d-1)		 积累量
Accumulate
(kg hm-2)		 所占比例
RIT
(%)		 吸收速率
Uptake rate
(kg hm-2 d-1)		 积累量
Accumulate
(kg hm-2)		 所占比例
RIT
(%)		 吸收速率
Uptake rate
(kg hm-2 d-1)
2017
高产氮高效 甬优1662 Yongyou 1662 86.4 35.45 1.80 108.49 44.51 4.17 48.86 20.04 0.83 243.74
HH 甬优4949 Yongyou 4949 86.81 35.77 1.77 109.43 45.09 4.21 46.47 19.15 0.80 242.71
高产氮中效 甬优2640 Yongyou 2640 88.85 38.29 1.81 100.17 43.17 3.71 43.04 18.55 0.77 232.06
HM 甬优4953 Yongyou 4953 87.50 37.94 1.79 101.04 43.81 3.74 42.06 18.24 0.75 230.60
中产氮中效 甬优6715 Yongyou 6715 95.08 40.94 1.86 102.30 44.05 3.53 34.85 15.01 0.70 232.23
MM 甬优6760 Yongyou 6760 94.64 40.58 1.89 102.80 44.07 3.54 35.81 15.35 0.70 233.24
HH平均值 HH mean 86.60 b 35.61 c 1.79 a 108.96 a 44.80 a 4.19 a 47.66 a 19.59 a 0.81 a 243.22 a
HM平均值 HM mean 88.17 b 38.12 b 1.80 a 100.60 c 43.49 b 3.73 b 42.55 a 18.39 a 0.76 b 231.33 b
MM平均值 MM mean 94.86 a 40.76 a 1.88 a 102.55 b 44.06 ab 3.54 c 35.33 b 15.18 b 0.70 c 232.74 b
2018
高产氮高效 甬优1662 Yongyou 1662 89.20 36.11 1.82 110.04 44.54 4.08 47.8 19.35 0.84 247.04
HH 甬优4949 Yongyou 4949 88.23 35.77 1.80 109.90 44.56 4.23 48.51 19.67 0.84 246.64
高产氮中效 甬优2640 Yongyou 2640 89.48 38.17 1.83 102.19 43.59 3.78 42.75 18.24 0.76 234.42
HM 甬优4953 Yongyou 4953 90.17 38.30 1.84 101.95 43.30 3.92 43.31 18.40 0.76 235.44
中产氮中效 甬优6715 Yongyou 6715 96.07 41.14 1.88 103.02 44.11 3.68 34.46 14.75 0.68 233.55
MM 甬优6760 Yongyou 6760 97.21 41.84 1.91 102.62 44.16 3.67 32.53 14.00 0.64 232.37
HH平均值 HH mean 88.71 b 35.94 c 1.81 b 109.97 a 44.55 a 4.15 a 48.16 a 19.51 a 0.84 a 246.84 a
HM平均值 HM mean 89.83 b 38.24 b 1.83 ab 102.07 c 43.45 b 3.85 b 43.03 b 18.32 a 0.76 b 234.93 b
MM平均值 MM mean 96.64 a 41.49 a 1.89 a 102.82 b 44.14 a 3.67 b 33.49 c 14.38 b 0.66 c 232.96 b

表8

甬优系列籼粳杂交稻抽穗期和成熟期各器官氮素积累和转运的差异..."

品种类型
Type		 品种名称
Variety		 氮素积累量 Nitrogen accumulation (kg hm-2) 茎鞘
氮素转
运量
NTSH
(kg hm-2)		 叶片
氮素转
运量
NTLH
(kg hm-2)		 穗部
氮素积
累量
NIPH
(kg hm-2)		 氮素
收获指数
NHI
(%)
抽穗期 Heading 成熟期 Maturity
茎鞘
Stem		 叶片
Leaf		 穗部
Panicle		 茎鞘
Stem		 叶片
Leaf		 穗部
Panicle
2017
高产氮高效
HH		 甬优1662
Yongyou 1662		 70.87 95.14 28.88 42.27 43.62 157.85 28.60 51.52 128.97 64.76
甬优4949
Yongyou 4949		 71.38 97.14 27.72 43.13 43.92 155.66 28.25 53.22 127.94 64.13
高产氮中效
HM		 甬优2640
Yongyou 2640		 69.26 93.81 25.95 47.44 42.55 142.06 21.82 51.26 116.11 61.22
甬优4953
Yongyou 4953		 67.00 93.78 27.75 45.60 41.98 143.01 21.40 51.80 115.26 62.02
中产氮中效
MM		 甬优6715
Yongyou 6715		 72.28 99.37 25.73 55.49 47.47 129.27 16.79 51.90 103.54 55.66
甬优6760
Yongyou 6760		 73.57 98.92 24.94 57.59 47.87 127.78 15.98 51.05 102.84 54.78
HH平均值
HH mean		 71.13 a 96.14 ab 28.30 a 42.70 b 43.77 b 156.76 a 28.42 a 52.37 a 128.46 a 64.44 a
HM平均值
HM mean		 68.13 a 93.80 b 26.85 a 46.52 b 42.26 b 142.54 b 21.61 b 51.53 a 115.68 b 61.62 b
MM平均值
MM mean		 72.93 a 99.14 a 25.33 a 56.54 a 47.67 a 128.52 c 16.39 c 51.47 a 103.19 c 55.22 c
2018
高产氮高效
HH		 甬优1662
Yongyou 1662		 74.53 96.20 28.50 46.45 46.67 153.92 28.08 49.53 125.42 62.31
甬优4949
Yongyou 4949		 73.50 96.83 27.79 45.87 45.69 155.08 27.63 51.14 127.29 62.88
高产氮中效
HM		 甬优2640
Yongyou 2640		 69.68 95.04 26.95 48.43 44.24 141.74 21.25 50.80 114.79 60.47
甬优4953
Yongyou 4953		 71.99 94.27 25.87 49.08 45.11 141.25 22.91 49.16 115.38 59.99
中产氮中效
MM		 甬优6715
Yongyou 6715		 72.31 101.00 25.78 57.10 50.30 126.15 15.21 50.70 100.37 54.01
甬优6760
Yongyou 6760		 73.47 101.24 25.12 57.75 49.73 124.89 15.72 51.51 99.77 53.75
HH平均值
HH mean		 74.02 a 96.52 b 28.15 a 46.16 c 46.18 b 154.50 a 27.85 a 50.33 a 126.36 a 62.60 a
HM平均值
HM mean		 70.84 a 94.65 b 26.41 b 48.76 b 44.67 b 141.49 b 22.08 b 49.98 a 115.08 b 60.23 b
MM平均值
MM mean		 72.89 a 101.12 a 25.45 c 57.42 a 50.01 a 125.52 c 15.47 c 51.10 a 100.07 c 53.88 c

表9

甬优系列籼粳杂交稻氮肥利用效率的差异..."

品种类型
Type		 品种名称
Variety		 氮素回收
利用率
NRE (%)		 氮素农学
利用率
AE (kg kg-1)		 氮素生理
利用率
PNUE (kg kg-1)		 氮肥偏生
产力
PFP (kg kg-1)		 百千克籽粒
需氮量
NRG (kg)
2017
高产氮高效 甬优1662 Yongyou 1662 45.16 18.81 41.65 41.23 2.19
HH 甬优4949 Yongyou 4949 44.22 18.6 42.05 40.85 2.2
高产氮中效 甬优2640 Yongyou 2640 39.13 15.88 40.58 39.61 2.17
HM 甬优4953 Yongyou 4953 39.38 15.99 40.61 39.34 2.17
中产氮中效 甬优6715 Yongyou 6715 42.42 14.79 34.87 36.19 2.38
MM 甬优6760 Yongyou 6760 43.16 15.09 34.96 36.15 2.39
HH平均值 HH mean 44.69 a 18.70 a 41.85 a 41.04 a 2.19 b
HM平均值 HM mean 39.26 b 15.94 b 40.60 b 39.47 b 2.17 c
MM平均值 MM mean 42.79 a 14.94 c 34.92 c 36.17 c 2.38 a
2018
高产氮高效 甬优1662 Yongyou 1662 43.69 19.18 43.9 41.5 2.20
HH 甬优4949 Yongyou 4949 44.93 19.14 42.61 41.41 2.21
高产氮中效 甬优2640 Yongyou 2640 39.91 16.94 42.44 39.89 2.18
HM 甬优4953 Yongyou 4953 39.31 16.52 42.03 39.51 2.21
中产氮中效 甬优6715 Yongyou 6715 42.83 15.94 37.21 36.63 2.36
MM 甬优6760 Yongyou 6760 42.50 15.43 36.31 36.47 2.36
HH平均值 HH mean 44.31 a 19.16 a 43.26 a 41.46 a 2.19 b
HM平均值 HM mean 39.61 b 16.73 b 42.24 a 39.70 b 2.20 b
MM平均值 MM mean 42.67 a 15.69 c 36.76 b 36.55 c 2.36 a
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