Effects of Meteorological Conditions on the Yield of Lianyu No.1 Maize

Wang Junfang; Zhou Guangsheng; Song Yanling; Ren Sanxue

doi:10.11898/1001-7313.20230310

Vol.34, NO.3, 2023

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Article Navigation > Journal of Applied Meteorological Science > 2023 > 34(3): 373-378

Wang Junfang, Zhou Guangsheng, Song Yanling, et al. Effects of meteorological conditions on the yield of Lianyu No.1 maize. J Appl Meteor Sci, 2023, 34(3): 373-378. DOI: 10.11898/1001-7313.20230310.

Citation:

Wang Junfang, Zhou Guangsheng, Song Yanling, et al. Effects of meteorological conditions on the yield of Lianyu No.1 maize. J Appl Meteor Sci, 2023, 34(3): 373-378. DOI: 10.11898/1001-7313.20230310.

Wang Junfang, Zhou Guangsheng, Song Yanling, et al. Effects of meteorological conditions on the yield of Lianyu No.1 maize. J Appl Meteor Sci, 2023, 34(3): 373-378. DOI: 10.11898/1001-7313.20230310.

Citation:

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Effects of Meteorological Conditions on the Yield of Lianyu No.1 Maize

DOI: 10.11898/1001-7313.20230310

1.
School of Geo-Science and Technology, Zhengzhou University, Zhengzhou 450052
2.
Hebei Gucheng Agricultural Meteorological National Field Scientific Observation and Research Station, Baoding 072656
3.
Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044

Received Date: 2023-02-08
Rev Recd Date: 2023-03-30
Publish Date: 2023-05-31

Abstract

Abstract

Understanding the influence of meteorological conditions on maize yield is an important basis for ensuring stable and high yield. The effects of meteorological conditions on the yield of Lianyu No.1 maize in North China are analyzed, based on the four-year field experimental data of different sowing dates (8 June(S1), 18 June(S2), 28 June(S3) and 8 July(S4)) conducted at Hebei Gucheng Agricultural Meteorological National Field Scientific Observation and Research Station from 2018 to 2021. The results show that the delay of sowing dates leads to the extension of growing period and changes in the meteorological conditions during the growing period. When the sowing date is delayed by 20 days, the average growth period is 2.5 days longer compared with sowed 10 days earlier, and the average air temperature from emergence to jointing stages increases by 0.7℃, while the average air temperature from milk-ripening to maturity stage decreases by 5.9℃. The average yield of Lianyu No.1 maize decreases with the delay of sowing dates, and the highest yield would be achieved when the sowing date is during 8-18 June. The key meteorological factors affecting maize yield per unit area are the daily temperature range from seedling emergence to jointing stage and the average temperature from tasseling to milk-ripening stage. The results provide a reference for scientific sowing date of Lianyu No.1 maize to ensure stable and high yield.
- North China;
- Lianyu No.1;
- sowing dates;
- yield;
- meteorological conditions

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Figures and Tables

Fig. 1 Growth period of maize under different sowing dates during 2018-2021

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Table 1 Average components of maize yield under different sowing dates during 2018-2021

处理	果穗粗/cm	果穗长/cm	单株籽粒数	百粒重/g
S1	5.1	20.0	622.5	34.467
S2	5.1	19.0	611.2	31.246
S3	5.1	18.9	623.5	29.940
S4	5.0	17.3	566.6	27.286

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Table 2 Partial correlation coefficients of maize yield's components with meteorological factors at different growth stages during 2018-2021

发育阶段	产量构成要素	平均气温/℃	气温日较差/℃	有效积温/(℃·d)	日照时数/h
播种-出苗期	果穗粗	-0.059	0.349^*	0.352^*	-0.368^*
	果穗长	0.368^*	0.022	-0.270	0.133
	单株籽粒数	0.059	0.230	-0.069	0.009
	百粒重	-0.211	0.310	-0.280	-0.065
出苗-拔节期	果穗粗	-0.288	-0.353^*	0.077	0.309
	果穗长	0.466^**	0.361^*	0.313^*	-0.214
	单株籽粒数	-0.542^**	0.538^**	0.441^**	-0.449^**
	百粒重	-0.585^**	0.627^**	0.462^**	-0.116
拔节-抽雄期	果穗粗	-0.179	-0.132	0.473^**	-0.381^*
	果穗长	0.802^**	0.234	0.227	-0.258
	单株籽粒数	0.130	0.702^**	0.290	-0.651^**
	百粒重	0.287	0.705^**	0.682^**	-0.739^**
抽雄-乳熟期	果穗粗	0.001	-0.012	0.287	0.007
	果穗长	0.697^**	0.177	0.435^**	-0.068
	单株籽粒数	0.681^**	0.434^**	0.523^**	-0.561^**
	百粒重	0.811^**	0.688^**	0.828^**	-0.690^**
乳熟-成熟期	果穗粗	-0.056	-0.099	0.362^*	0.140
	果穗长	0.521^**	0.794^**	0.434^**	-0.625^**
	单株籽粒数	0.750^**	0.012	0.509^**	0.073
	百粒重	0.666^**	0.530^**	0.243	-0.258
播种-成熟期	果穗粗	0.198	-0.352^*	0.398^*	0.288
	果穗长	0.810^**	0.115	0.613^**	0.047
	单株籽粒数	0.578^**	0.643^**	0.730^**	-0.653^**
	百粒重	0.747^**	0.633^**	0.886^**	-0.514^**
注：^表示达到0.05显著性水平，^*表示达到0.01显著性水平。

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Table 3 Maize yield per unit area under different sowing dates during 2018-2021(unit: t·hm^-2)

处理	2018年	2019年	2020年	2021年
S1		13.556	13.632	14.827
S2		14.972	11.347	11.817
S3	9.819	12.415	11.571	11.066
S4	8.465	10.377	9.482	8.667

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Table 4 Partial correlations of maize yield per unit area with meteorological factors at different growth stages during 2018-2021

发育阶段	平均气温/℃	气温日较差/℃	有效积温/(℃·d)	日照时数/h
播种-出苗期	-0.112	0.343^*	-0.212	-0.081
出苗-拔节期	-0.648^**	0.637^**	0.520^**	-0.316^*
拔节-抽雄期	0.278	0.776^**	0.638^**	-0.783^**
抽雄-乳熟期	0.807^**	0.618^**	0.761^**	-0.662^**
乳熟-成熟期	0.724^**	0.384^*	0.363^*	-0.145
播种-成熟期	0.737^**	0.738^**	0.898^**	-0.691^**
注：^表示达到0.05显著性水平，^*表示达到0.01显著性水平。

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