Effect of Nitrogen Topdressing Rate on Yield and Quality of Black-Grained Wheat Varieties (Strains)

doi:10.11869/j.issn.100-8551.2022.02.0435

Journal of Nuclear Agricultural Sciences ›› 2022, Vol. 36 ›› Issue (2): 435-444.DOI: 10.11869/j.issn.100-8551.2022.02.0435

• Isotope Tracer Technique·Ecology and Environment·Physiology • Previous Articles Next Articles

Effect of Nitrogen Topdressing Rate on Yield and Quality of Black-Grained Wheat Varieties (Strains)

DONG Fei(), LI Feng, JIA Yaqin, YANG Feng^*(), YAN Qiuyan, LU Jinxiu, SHEN Yanting

Institute of Wheat Research, Shanxi Agricultural University, Linfen, Shanxi 041000

Received:2021-03-09 Accepted:2021-06-23 Online:2022-02-10 Published:2022-01-17
Contact: YANG Feng

追氮量对黑小麦品种(系)籽粒产量和品质的影响

董飞(), 李峰, 贾亚琴, 杨峰^*(), 闫秋艳, 鲁晋秀, 申艳婷

山西农业大学小麦研究所,山西临汾 041000

通讯作者: 杨峰
作者简介:董飞,男,助理研究员,主要从事小麦栽培生理研究。E-mail: yqyadf@163.com
基金资助:
山西省农业科学院农业科技创新研究课题(YCX2019T07);山西省农业科学院优秀青年基金(YCX2020YQ25);山西省重点研发计划重点项目(201703D211002-5)

Abstract

Abstract:

In order to estimate the effect of nitrogen topdressing rate on grain yield and quality of different black-grained wheat varieties(strains), a field experiment was conducted using a split plot design. Eleven black-grained wheat varieties(strains) were used in the main plot, and the sub-plot were nitrogen topdressing rates with four levels of 0 (N0, control), 34.5 (N1), 51.8 (N2), 69.0 (N3) kg·hm^-2. The SPAD value of flag leaf was measured in filling stage; grain yield, yield components, grain nitrogen content and grain quality were determined in maturity stage. Results showed that nitrogen topdressing was beneficial to increase the SPAD value of flag leaf, the highest SPAD value of B145-2, L10056 and L10058 were obtained under N1 treatment, while the SPAD values of the other 8 other varieties(strains) were increased with the increase of nitrogen topdressing rate. Nitrogen topdressing was also beneficial to increase yield of black-grained wheat, and the yield increased by 15.2% to 99.7%, 17.5% to 80.9% and 0.7% to 69.9%, under N1, N2 and N3 treatments, respectively. The optimum rate of nitrogen topdressing to obtain the highest yield were various among varieties. The grain yield of L10056, B120-2 and Yunhei 14207 increased with the increasing of nitrogen dressing rate; the highest grain yield of B145-2 and L10058 were obtained under N2 treatment, and 6 other varieties(strains) had the highest grain yield under N1 treatment. Correlation analysis showed that the increase of yield was mainly attributed to the increase of kernel per spike. Nitrogen topdressing rate, variety and their interaction had extremely significant effects on the yield and its components. Nitrogen topdressing could increase grain nitrogen content of most black-grained wheat varieties, of which B145-2, L10058 and Yunhei 14207 had the highest nitrogen content under N2 treatment, and 18 jian 46, Linhei 131, Donhei 1, Linhei 187, 2002-4 and Yunhei 161 had the highest nitrogen content under N1 treatment. Correlation analysis showed that nitrogen topdressing rate was positively correlated to the grain yield, nitrogen content and protein content (the correlation was not significant). A significant negative correlation was found between yield and protein content, and other quality indexes. Considering the yield and quality characteristics, nitrogen topdressing rate between 34.5 kg·hm^-2 and 51.8 kg·hm^-2 was more suitable to black-grained wheat. The results of this study can provide reference forrational application of nitrogen fertilizer in black-grained wheat.

Key words: nitrogen topdressing rate, black-grained wheat, yield, grain protein, grain nitrogen uptake

摘要：

为探究追氮量对不同黑小麦品种(系)籽粒产量和品质的影响,本研究采用大田裂区试验设计,主区为11个黑小麦品种(系),副区为追施氮量0(N0,对照)、34.5(N1)、51.8(N2)、69.0(N3)kg·hm^-2, 于小麦灌浆期测定旗叶叶绿素含量(SPAD值),成熟期测定籽粒产量及产量构成要素、籽粒氮素含量和品质指标。结果表明,旗叶SPAD值在追氮处理下均增加,除B145-2、L10056、L10058的旗叶SPAD值在N1最高,其余8个品种(系)的旗叶SPAD值均随追氮量增加而升高。追施氮肥均有利于增加黑小麦产量,与N0相比,N1、N2和N3的产量增幅分别为15.2%~99.7%、17.5%~80.9%和0.7%~69.9%。11个品种(系)获得最高产量的适宜追氮量因品种而异,其中L10056、B120-2、运黑14207籽粒产量随追氮量增加而增加,B145-2、L10058籽粒产量在N2最高,其余6个品种(系)籽粒产量在N1最高。追氮量、品种及二者交互均对产量及构成因素存在极显著影响。追施氮肥能够提高多数黑小麦品种籽粒氮素含量,其中B145-2、L10058和运黑14207在N2最高,18鉴46、临黑131、冬黑1号、临黑187、2002-4、运黑161在N1最高。追氮量与籽粒产量、氮含量、蛋白含量呈正相关(相关性不显著),而产量与籽粒蛋白含量及多数品质指标存在极显著负相关关系。综合考虑黑小麦产量及品质的提高,追氮量在34.5~51.8 kg·hm^-2之间较为适宜。本研究结果可为黑小麦合理施用氮肥提供参考。

关键词: 追氮量, 黑小麦, 产量, 籽粒蛋白, 籽粒氮吸收

DONG Fei, LI Feng, JIA Yaqin, YANG Feng, YAN Qiuyan, LU Jinxiu, SHEN Yanting. Effect of Nitrogen Topdressing Rate on Yield and Quality of Black-Grained Wheat Varieties (Strains)[J]. Journal of Nuclear Agricultural Sciences, 2022, 36(2): 435-444.

董飞, 李峰, 贾亚琴, 杨峰, 闫秋艳, 鲁晋秀, 申艳婷. 追氮量对黑小麦品种(系)籽粒产量和品质的影响[J]. 核农学报, 2022, 36(2): 435-444.

Figures/Tables 6

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创刊：1987年
主管部门：农业农村部
主办单位：中国原子能农学会与中国农业科学院农产品加工研究所（前中国农业科学院原子能利用研究所）
ISSN：1000-8551

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品种(系) Varieties (straius)	处理 Treatments	有效穗数 Effective spike numbers /(×10⁴·hm^-2)	穗粒数 Grains per spike	千粒重 1 000-kernel weight/g	产量 Grain yield /(kg·hm^-2)	增产率 Increase rate /%
B145-2	N0(对照)	502a	25.4b	39.6b	1 581.0c
	N1	498b	26.7b	44.2a	1 956.1b	23.7b
	N2	476b	28.1a	40.4b	2 488.1a	57.4a
	N3	466b	29.4a	41.6ab	1 947.1b	23.2b
L10056	N0(对照)	554a	25.6a	39.0a	2 080.1c
	N1	541b	25.8a	26.6b	2 630.1ab	26.4b
	N2	532b	25.0a	29.6b	2 715.1a	30.5b
	N3	519b	25.4a	37.0a	2 972.1a	42.9a
L10058	N0(对照)	534a	26.7a	39.4a	2 697.1c
	N1	543a	27.0a	36.6b	3 670.2b	36.1b
	N2	512a	26.8a	40.6a	4 052.2a	50.2a
	N3	487b	26.8a	39.0a	3 881.2b	43.9a
18鉴46 18 jian 46	N0(对照)	456b	26.5b	35.4b	1 969.0c
	N1	478a	27.3ab	36.2b	3 855.2a	95.8a
	N2	451b	28.0a	38.8a	2 929.1b	48.8b
	N3	468b	28.3a	38.6a	2 592.1b	31.6b
临黑131 Linhei 131	N0(对照)	478b	31.1b	39.4a	1 108.1b
	N1	498a	32.4b	39.2a	2 213.2a	99.7a
	N2	467b	33.0a	39.8a	2 004.1a	80.9a
	N3	453b	34.0a	39.8a	1 532.1b	38.3b
品种(系) Varieties (straius)	处理 Treatments	有效穗数 Effective spike numbers /(×10⁴·hm^-2)	穗粒数 Grains per spike	千粒重 1 000-kernel weight/g	产量 Grain yield /(kg·hm^-2)	增产率 Increase rate /%
冬黑1号	N0(对照)	512b	28.9b	41.8a	2 706.1c
	N1	523a	29.1ab	41.2a	3 691.2a	36.4a
	N2	512b	30.1a	38.4b	3 321.2b	22.7a
	N3	504b	31.0a	41.0a	2 724.1c	0.7b
临黑187	N0(对照)	476b	25.6a	36.4b	3 052.2d
	N1	477b	25.7a	42.6a	5 169.3a	69.4a
	N2	469b	26.0a	40.4a	4 223.2b	38.4b
	N3	481a	26.1a	36.6b	3 659.2c	19.9c
B120-2	N0(对照)	478b	31.2b	41.0a	4 349.2c
	N1	498a	32.1b	40.0a	5 992.3b	37.8b
	N2	467b	33.0a	41.8a	6 017.3b	38.4b
	N3	451b	33.9a	41.6a	7 258.4a	66.9a
2002-4	N0(对照)	503a	29.0b	46.0a	2 674.1c
	N1	487b	30.0b	40.0b	3 864.2a	44.5a
	N2	471b	31.0a	43.4b	3 651.2b	36.5b
	N3	470b	32.0a	42.4b	3 642.2b	36.2b
运黑161	N0(对照)	488a	33.2b	36.6b	4 033.2c
	N1	471b	34.1b	38.8a	5 811.3a	44.1a
	N2	463b	35.0a	33.8c	4 737.2b	17.5b
	N3	458b	36.1a	36.0b	4 666.2b	15.7b
运黑14207	N0(对照)	523a	31.2c	42.0a	3 300.2cd
	N1	512b	32.3b	40.4b	3 800.2c	15.2c
	N2	507b	33.0b	39.8b	4 869.2b	47.5b
	N3	489b	35.0a	38.6b	5 608.3a	69.9a
F值 F value	追氮量N	76.1^**	46.7^**	78.4^**	103.4^**
	品种V	54.2^**	67.8^**	56.3^**	97.5^**
	追氮量×品种N×V	3.12^**	7.18^**	1.23^**	3.44^**

品种(系) Varieties (straius)	处理 Treatments	有效穗数 Effective spike numbers /(×10⁴·hm^-2)	穗粒数 Grains per spike	千粒重 1 000-kernel weight/g	产量 Grain yield /(kg·hm^-2)	增产率 Increase rate /%
B145-2	N0(对照)	502a	25.4b	39.6b	1 581.0c
	N1	498b	26.7b	44.2a	1 956.1b	23.7b
	N2	476b	28.1a	40.4b	2 488.1a	57.4a
	N3	466b	29.4a	41.6ab	1 947.1b	23.2b
L10056	N0(对照)	554a	25.6a	39.0a	2 080.1c
	N1	541b	25.8a	26.6b	2 630.1ab	26.4b
	N2	532b	25.0a	29.6b	2 715.1a	30.5b
	N3	519b	25.4a	37.0a	2 972.1a	42.9a
L10058	N0(对照)	534a	26.7a	39.4a	2 697.1c
	N1	543a	27.0a	36.6b	3 670.2b	36.1b
	N2	512a	26.8a	40.6a	4 052.2a	50.2a
	N3	487b	26.8a	39.0a	3 881.2b	43.9a
18鉴46 18 jian 46	N0(对照)	456b	26.5b	35.4b	1 969.0c
	N1	478a	27.3ab	36.2b	3 855.2a	95.8a
	N2	451b	28.0a	38.8a	2 929.1b	48.8b
	N3	468b	28.3a	38.6a	2 592.1b	31.6b
临黑131 Linhei 131	N0(对照)	478b	31.1b	39.4a	1 108.1b
	N1	498a	32.4b	39.2a	2 213.2a	99.7a
	N2	467b	33.0a	39.8a	2 004.1a	80.9a
	N3	453b	34.0a	39.8a	1 532.1b	38.3b
品种(系) Varieties (straius)	处理 Treatments	有效穗数 Effective spike numbers /(×10⁴·hm^-2)	穗粒数 Grains per spike	千粒重 1 000-kernel weight/g	产量 Grain yield /(kg·hm^-2)	增产率 Increase rate /%
冬黑1号	N0(对照)	512b	28.9b	41.8a	2 706.1c
	N1	523a	29.1ab	41.2a	3 691.2a	36.4a
	N2	512b	30.1a	38.4b	3 321.2b	22.7a
	N3	504b	31.0a	41.0a	2 724.1c	0.7b
临黑187	N0(对照)	476b	25.6a	36.4b	3 052.2d
	N1	477b	25.7a	42.6a	5 169.3a	69.4a
	N2	469b	26.0a	40.4a	4 223.2b	38.4b
	N3	481a	26.1a	36.6b	3 659.2c	19.9c
B120-2	N0(对照)	478b	31.2b	41.0a	4 349.2c
	N1	498a	32.1b	40.0a	5 992.3b	37.8b
	N2	467b	33.0a	41.8a	6 017.3b	38.4b
	N3	451b	33.9a	41.6a	7 258.4a	66.9a
2002-4	N0(对照)	503a	29.0b	46.0a	2 674.1c
	N1	487b	30.0b	40.0b	3 864.2a	44.5a
	N2	471b	31.0a	43.4b	3 651.2b	36.5b
	N3	470b	32.0a	42.4b	3 642.2b	36.2b
运黑161	N0(对照)	488a	33.2b	36.6b	4 033.2c
	N1	471b	34.1b	38.8a	5 811.3a	44.1a
	N2	463b	35.0a	33.8c	4 737.2b	17.5b
	N3	458b	36.1a	36.0b	4 666.2b	15.7b
运黑14207	N0(对照)	523a	31.2c	42.0a	3 300.2cd
	N1	512b	32.3b	40.4b	3 800.2c	15.2c
	N2	507b	33.0b	39.8b	4 869.2b	47.5b
	N3	489b	35.0a	38.6b	5 608.3a	69.9a
F值 F value	追氮量N	76.1^**	46.7^**	78.4^**	103.4^**
	品种V	54.2^**	67.8^**	56.3^**	97.5^**
	追氮量×品种N×V	3.12^**	7.18^**	1.23^**	3.44^**

品种(系) Varieties (strains)	处理 Treatments	蛋白含量 Protein content/%	湿面筋 Wet gluten /%	吸水率 Absorption /%	容重 Test weight /(g·L^-1)	沉降值 Sediment value/mL	硬度 Hardness /%	面团稳定时间 Dough stability time/min	面团形成时间 Dough development time/min
B145-2	N0(对照)	19.0a	39.3b	62.3a	791b	50.6a	66.1a	10.0a	6.2a
	N1	20.3a	42.6a	60.3a	862a	27.5c	52.8b	8.9b	6.5a
	N2	18.4b	38.7b	55.9b	803b	44.9b	53.0b	8.3b	6.3a
	N3	18.4b	38.8b	56.8b	817b	41.2b	53.8b	8.8b	6.7a
L10056	N0(对照)	17.7a	36.8a	55.4a	806a	40.9a	52.4b	7.3b	3.2b
	N1	17.4a	37.8a	53.5a	808a	32.6b	53.6b	7.7b	3.9b
	N2	17.9a	37.2a	54.9a	815a	35.4b	52.3b	7.5b	4.2b
	N3	17.6a	37.7a	56.3a	805a	35.2b	55.0a	8.0a	5.5a
L10058	N0(对照)	19.2a	40.6a	58.9a	799a	42.8a	56.9b	6.7b	5.3a
	N1	18.3b	38.8a	58.4a	804a	43.9a	59.3a	7.2a	5.3a
	N2	18.2b	39.0a	58.6a	796a	43.2a	58.6a	7.5a	5.4a
	N3	18.5b	39.7a	59.1a	796a	41.9a	59.5a	6.8b	5.2a
18鉴46 18 jian 46	N0(对照)	19.9a	41.6a	66.6a	866a	31.4b	61.8b	6.5b	4.1b
	N1	17.4b	36.8b	60.5b	810b	51.1a	68.3a	8.9a	6.2a
	N2	17.9b	38.1b	61.5b	816b	48.1a	69.1a	7.7b	6.1a
	N3	17.6b	37.5b	60.9b	814b	47.9a	67.6a	7.9b	6.1a
临黑131 Linhei 131	N0(对照)	17.9b	37.7b	59.9a	813a	45.1a	61.9b	7.1a	5.2a
	N1	18.9a	40.5a	62.1a	800a	45.4a	66.9a	5.9b	5.0a
	N2	18.7a	39.4a	59.5a	809a	42.2a	68.3a	6.8ab	5.0a
	N3	17.8b	38.7b	57.0b	805a	41.3b	65.2a	6.6ab	5.0a
冬黑1号 Donghei 1	N0(对照)	16.3b	34.5a	57.7a	818a	38.7a	60.5a	6.8a	4.4a
	N1	16.5b	35.0a	57.4a	819a	38.7a	60.6a	6.1b	4.5a
	N2	16.8a	35.5a	57.0a	822a	36.9a	59.3a	6.4b	4.5a
	N3	17.0a	35.8a	57.8a	820a	38.6a	60.6a	6.3b	4.5a
临黑187 Linhei 187	N0(对照)	16.4a	34.9b	59.6b	805b	45.7a	64.1b	6.5b	5.3a
	N1	16.9a	36.0a	63.7a	875a	45.5a	68.3a	7.3a	5.1a
	N2	16.1a	35.7b	60.1b	820b	43.8a	68.6a	7.6a	5.4a
	N3	16.5a	34.9b	59.7b	815b	44.9a	67.8a	6.9ab	5.2a
B120-2	N0(对照)	14.7b	35.9a	54.8a	828a	29.1a	55.3a	5.1a	3.6a
	N1	14.2b	30.3b	54.9a	818a	26.7a	55.8a	5.9a	3.3a
	N2	15.1a	31.8b	54.9a	831a	27.6a	54.6a	5.3a	3.4a
	N3	15.1a	32.0b	55.1a	828a	28.2a	55.6a	5.7a	3.4a
2002-4	N0(对照)	16.7b	35.2b	56.1b	812a	38.1b	53.2b	6.8b	5.3a
	N1	16.3b	35.4b	56.0b	807b	41.0b	55.5a	7.6a	5.5a
	N2	19.1a	39.9a	61.1a	802b	46.0a	53.7b	7.4a	5.9a
	N3	16.8b	35.5b	57.0b	806b	42.8b	56.9a	7.8a	5.7a
运黑161 Yunhei 161	N0(对照)	16.1b	33.5b	52.4a	818a	36.8a	45.3b	7.0b	4.3a
	N1	16.3b	33.9b	54.2a	819a	39.7a	49.8a	7.5a	4.5a
	N2	17.0a	35.3ab	53.7a	821a	37.8a	47.8a	7.8a	4.5a
	N3	17.3a	36.1a	54.5a	821a	39.8a	49.5a	7.0b	4.7a
运黑14207 Yunhei 14027	N0(对照)	13.3b	28.2ab	53.0a	814a	24.7b	45.6a	5.6b	4.0b
	N1	15.5a	32.5a	53.7a	796b	31.2a	45.9a	6.1a	4.6a
	N2	15.2a	32.3a	53.9a	797b	29.1a	45.6a	5.8ab	4.6a
	N3	14.9ab	31.7a	53.1a	803b	28.9a	45.6a	5.7b	4.6a
F值 F value	追氮量N	9.2^**	56.7^**	23.1^**	68.3^*	4.6^**	16.7^**	15.7^**	8.1^*
	品种V	67.1^**	213.5^**	78.4^**	107.4^**	34.6^**	212.3^**	87.1^**	16.2^**
	追氮量×品种N×V	7.4^*	13.1^**	3.1^*	0.2	17.8^**	3.4^*	6.8^**	1.2

品种(系) Varieties (strains)	处理 Treatments	蛋白含量 Protein content/%	湿面筋 Wet gluten /%	吸水率 Absorption /%	容重 Test weight /(g·L^-1)	沉降值 Sediment value/mL	硬度 Hardness /%	面团稳定时间 Dough stability time/min	面团形成时间 Dough development time/min
B145-2	N0(对照)	19.0a	39.3b	62.3a	791b	50.6a	66.1a	10.0a	6.2a
	N1	20.3a	42.6a	60.3a	862a	27.5c	52.8b	8.9b	6.5a
	N2	18.4b	38.7b	55.9b	803b	44.9b	53.0b	8.3b	6.3a
	N3	18.4b	38.8b	56.8b	817b	41.2b	53.8b	8.8b	6.7a
L10056	N0(对照)	17.7a	36.8a	55.4a	806a	40.9a	52.4b	7.3b	3.2b
	N1	17.4a	37.8a	53.5a	808a	32.6b	53.6b	7.7b	3.9b
	N2	17.9a	37.2a	54.9a	815a	35.4b	52.3b	7.5b	4.2b
	N3	17.6a	37.7a	56.3a	805a	35.2b	55.0a	8.0a	5.5a
L10058	N0(对照)	19.2a	40.6a	58.9a	799a	42.8a	56.9b	6.7b	5.3a
	N1	18.3b	38.8a	58.4a	804a	43.9a	59.3a	7.2a	5.3a
	N2	18.2b	39.0a	58.6a	796a	43.2a	58.6a	7.5a	5.4a
	N3	18.5b	39.7a	59.1a	796a	41.9a	59.5a	6.8b	5.2a
18鉴46 18 jian 46	N0(对照)	19.9a	41.6a	66.6a	866a	31.4b	61.8b	6.5b	4.1b
	N1	17.4b	36.8b	60.5b	810b	51.1a	68.3a	8.9a	6.2a
	N2	17.9b	38.1b	61.5b	816b	48.1a	69.1a	7.7b	6.1a
	N3	17.6b	37.5b	60.9b	814b	47.9a	67.6a	7.9b	6.1a
临黑131 Linhei 131	N0(对照)	17.9b	37.7b	59.9a	813a	45.1a	61.9b	7.1a	5.2a
	N1	18.9a	40.5a	62.1a	800a	45.4a	66.9a	5.9b	5.0a
	N2	18.7a	39.4a	59.5a	809a	42.2a	68.3a	6.8ab	5.0a
	N3	17.8b	38.7b	57.0b	805a	41.3b	65.2a	6.6ab	5.0a
冬黑1号 Donghei 1	N0(对照)	16.3b	34.5a	57.7a	818a	38.7a	60.5a	6.8a	4.4a
	N1	16.5b	35.0a	57.4a	819a	38.7a	60.6a	6.1b	4.5a
	N2	16.8a	35.5a	57.0a	822a	36.9a	59.3a	6.4b	4.5a
	N3	17.0a	35.8a	57.8a	820a	38.6a	60.6a	6.3b	4.5a
临黑187 Linhei 187	N0(对照)	16.4a	34.9b	59.6b	805b	45.7a	64.1b	6.5b	5.3a
	N1	16.9a	36.0a	63.7a	875a	45.5a	68.3a	7.3a	5.1a
	N2	16.1a	35.7b	60.1b	820b	43.8a	68.6a	7.6a	5.4a
	N3	16.5a	34.9b	59.7b	815b	44.9a	67.8a	6.9ab	5.2a
B120-2	N0(对照)	14.7b	35.9a	54.8a	828a	29.1a	55.3a	5.1a	3.6a
	N1	14.2b	30.3b	54.9a	818a	26.7a	55.8a	5.9a	3.3a
	N2	15.1a	31.8b	54.9a	831a	27.6a	54.6a	5.3a	3.4a
	N3	15.1a	32.0b	55.1a	828a	28.2a	55.6a	5.7a	3.4a
2002-4	N0(对照)	16.7b	35.2b	56.1b	812a	38.1b	53.2b	6.8b	5.3a
	N1	16.3b	35.4b	56.0b	807b	41.0b	55.5a	7.6a	5.5a
	N2	19.1a	39.9a	61.1a	802b	46.0a	53.7b	7.4a	5.9a
	N3	16.8b	35.5b	57.0b	806b	42.8b	56.9a	7.8a	5.7a
运黑161 Yunhei 161	N0(对照)	16.1b	33.5b	52.4a	818a	36.8a	45.3b	7.0b	4.3a
	N1	16.3b	33.9b	54.2a	819a	39.7a	49.8a	7.5a	4.5a
	N2	17.0a	35.3ab	53.7a	821a	37.8a	47.8a	7.8a	4.5a
	N3	17.3a	36.1a	54.5a	821a	39.8a	49.5a	7.0b	4.7a
运黑14207 Yunhei 14027	N0(对照)	13.3b	28.2ab	53.0a	814a	24.7b	45.6a	5.6b	4.0b
	N1	15.5a	32.5a	53.7a	796b	31.2a	45.9a	6.1a	4.6a
	N2	15.2a	32.3a	53.9a	797b	29.1a	45.6a	5.8ab	4.6a
	N3	14.9ab	31.7a	53.1a	803b	28.9a	45.6a	5.7b	4.6a
F值 F value	追氮量N	9.2^**	56.7^**	23.1^**	68.3^*	4.6^**	16.7^**	15.7^**	8.1^*
	品种V	67.1^**	213.5^**	78.4^**	107.4^**	34.6^**	212.3^**	87.1^**	16.2^**
	追氮量×品种N×V	7.4^*	13.1^**	3.1^*	0.2	17.8^**	3.4^*	6.8^**	1.2

项目 Item	N rate	GY	ESN	KPS	TKW	SPAD	NC	NU	PC	WG	Ab	TW	SV	H	ST	DT
N rate	1
GY	0.280	1
ESN	-0.332^*	-0.218	1
KPS	0.241	0.431^**	-0.418^**	1
TKW	-0.056	0.077	-0.203	0.194	1
SPAD	0.663^**	0.301^*	0.154	-0.032	-0.069	1
NC	0.043	0.279	0.080	0.511^**	-0.188	0.057	1
NU	0.245	0.912^**	-0.158	0.560^**	-0.013	0.258	0.636^**	1
PC	0.035	-0.650^**	0.000	-0.434^**	-0.121	-0.057	-0.249	-0.614^**	1
WG	0.051	-0.642^**	-0.010	-0.447^**	-0.097	-0.040	-0.274	-0.620^**	0.993^**	1
Ab	-0.097	-0.416^**	-0.246	-0.505^**	0.145	-0.151	-0.460^**	-0.521^**	0.639^**	0.672^**	1
TW	-0.040	0.128	-0.357^*	-0.019	0.204	-0.034	-0.160	0.035	0.131	0.114	0.364^*	1
SV	0.055	-0.464^**	-0.122	-0.264	-0.092	-0.059	-0.250	-0.458^**	0.520^**	0.540^**	0.430^**	-0.390^**	1
H	-0.011	-0.265	-0.155	-0.449^**	-0.071	-0.090	-0.551^**	-0.444^**	0.224	0.275	0.665^**	-0.166	0.593^**	1
ST	0.072	-0.416^**	-0.033	-0.465^**	-0.141	0.081	-0.143	-0.367^*	0.598^**	0.576^**	0.319^*	-0.029	0.538^**	0.173	1
DT	0.216	-0.438^**	-0.223	-0.325^*	0.213	0.075	-0.175	-0.395^**	0.577^**	0.598^**	0.484^**	-0.072	0.621^**	0.274	0.724^**	1

Effect of Nitrogen Topdressing Rate on Yield and Quality of Black-Grained Wheat Varieties (Strains)

追氮量对黑小麦品种(系)籽粒产量和品质的影响

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