Crops ›› 2019, Vol. 35 ›› Issue (4): 120-124.doi: 10.16035/j.issn.1001-7283.2019.04.018

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Grain Filling Characteristics of Nine Main Spring Corn Varieties in Eastern Hebei Province

Wang Jian,Yao Dandan,Hao Ruxue,Yu Qingsong,Han Jinling,Zhou Yinfu,Wang Wenpo   

  1. College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, Hebei, China
  • Received:2019-01-31 Revised:2019-06-10 Online:2019-08-15 Published:2019-08-06
  • Contact: Wenpo Wang

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Abstract:

A field experiment was conducted to illustrate grain-filling characteristics and to provide references for variety selection of corn hybrids in Eastern Hebei Province. Nine main spring corn varieties in eastern Hebei Province were selected and planted according to the recommended density, and their filling characteristics were studied. The results showed that the yield was the highest in Jinkeyu 3306 and the lowest in Lishou No.1. The spike row number, grain number and 1000-grain weight of Jinkeyu 3306 were 3.11%, 7.69% and 6.41%, respectively. Among the yield components and traits, the most important factor affecting the yield was the grain number per row, followed by the number of rows and 1000-grain weight. Both increasing the length of the spike and taking into account other traits was an effective way to increase yield. There were large differences in grain filling parameters among different varieties. The active filling period of Zaoli No.1 was short, but the maximum filling rate and the average filling rate were the highest. The active filling period of Chunyu 958 was the longest, but the maximum filling rate was the lowest. The yield was positively correlated with the maximum grain filling rate (Rmax) and the average grain filling rate (R), It was negatively correlated with grouting duration (T) and active grouting period (P). Under the premise of ensuring the safe and mature grain, the selection of the varieties with moderate filling duration and high filling rate had a positive impact on the yield formation. In general, Jinkeyu 3306, Dongdan 913 and Zaoli No.1 are recommended spring corn varieties in eastern Hebei Province.

Key words: Spring corn, Variety, Grain filling, Yield, Eastern Hebei Province

Table 1

Yield, yield components, and traits of tested varieties"

品种Variety 穗行数
Spike row number		 行粒数
Grain number per row		 千粒重(g)
1000-grain weight		 穗长(cm)
Spike length		 穗粗(cm)
Ear diameter		 秃尖长(cm)
Baldness length		 轴粗(cm)
Axial diameter		 产量(kg/hm2)
Yield
MC670 17.00±1.50bc 30.13±7.05ef 273.86±7.41c 15.40±2.38bc 4.51±0.22c 0.63±0.72a 2.39±0.22c 8 796ab
东单913 Dongdan 913 18.50±1.59a 32.50±4.71bcd 286.82±14.81bc 15.99±1.48ab 4.35±0.18e 0.10±0.23c 2.45±0.13c 10 097ab
粒收1号Lishou No.1 17.43±1.73b 30.47±5.81de 287.32±11.23bc 14.07±2.31ef 4.52±0.24c 0.05±0.15c 4.63±17.12c 8 447b
张1453 Zhang 1453 17.63±1.93b 32.78±5.24abc 267.65±3.49c 14.31±2.24de 4.37±0.24de 0.50±0.60ab 2.44±0.18c 8 881ab
伟科702 Weike 702 15.80±1.43d 28.22±5.14fg 290.01±26.82bc 15.53±2.29bc 4.73±0.24b 0.09±0.24c 2.76±0.19b 8 541b
纯玉958 Chunyu 958 16.53±1.80c 34.63±5.69a 326.83±6.08a 16.53±2.12a 4.93±0.38a 0.09±0.28c 2.89±0.52a 9 083ab
郑原玉432 Zhengyuanyu 432 16.90±1.40bc 27.95±4.53g 269.87±10.77c 13.49±2.07f 4.37±0.22de 0.61±0.70a 2.27±0.12d 9 231ab
早粒1号Zaoli No.1 15.23±1.84e 30.77±5.88cde 289.32±20.91bc 14.88±1.74cd 4.48±0.31cd 0.42±0.61b 2.48±0.21c 9 306ab
金科玉3306 Jinkeyu 3306 17.30±1.50bc 33.15±4.44ab 303.76±10.87ab 16.51±0.97a 4.59±0.31c 0.39±0.45b 2.56±0.23c 10 262a

Table 2

Correlation analysis of yield, yield components, and other traits of different maize varieties"

性状
Trait		 穗行数
Spike row
number		 行粒数
Grain number
per row		 千粒重
1000-grain
weight		 穗长
Spike
length		 穗粗
Ear
diameter		 秃尖长
Baldness
length		 轴粗
Axial
thickness		 产量
Yield
穗行数Spike row number 1.00
行粒数Grain number per row 0.42 1.00
千粒重1000-grain weight -0.20 0.60 -1.00
穗长Spike length -0.04 0.62 -0.75** -1.00
穗粗Ear diameter -0.48 0.28 -0.84** -0.59 -1.00
秃尖长Baldness length 0.12 -0.10 -0.65 -0.43 -0.53 1.00
轴粗Axial thickness -0.43 0.42 -0.83** -0.71* -0.91** -0.54 1.00
产量Yield 0.40 0.45 -0.24 -0.49 -0.23 -0.01 -0.07 1.00

Fig.1

The dynamic change of grain filling in different maize varieties"

Table 3

Grain filling parameters and secondary parameters of different maize varieties"

参数
Parameter		 伟科702
Weike 702		 张1453
Zhang 1453		 粒收1号
Lishou No.1		 东单913
Dongdan 913		 MC670 纯玉958
Chunyu 958		 早粒1号
Zaoli No.1		 金科玉3306
Jinkeyu 3306		 郑原玉432
Zhengyuanyu 432
K 31.630 27.006 29.525 27.223 33.663 34.999 31.323 31.843 28.479
a 38.482 39.366 9.155 12.310 24.641 10.741 53.844 32.269 32.806
b 0.129 0.157 0.111 0.135 0.112 0.102 0.182 0.142 0.160
R2 0.989 0.996 0.986 0.980 0.967 0.952 0.995 0.996 0.987
F 277.770 818.216 214.129 145.846 88.072 58.903 646.622 785.986 223.581
Tmax (d) 28.318 23.365 19.931 18.623 28.662 23.253 21.914 24.500 21.762
Rmax 1.019 1.061 0.820 0.918 0.941 0.893 1.424 1.129 1.142
T (d) 63.967 52.596 61.291 52.712 69.763 68.259 47.175 56.906 50.410
R [g/(百粒·d)][g/(100-grain·d)] 0.494 0.513 0.482 0.517 0.483 0.513 0.664 0.560 0.565
T1 (d) 18.101 14.987 8.077 8.853 16.882 10.354 14.673 15.212 13.551
R1 [g/(百粒·d)][g/(100-grain·d)] 0.369 0.381 0.773 0.650 0.421 0.714 0.451 0.442 0.444
T2 (d) 20.434 16.756 23.708 19.540 23.560 25.798 14.480 18.575 16.421
R2 [g/(百粒·d)][g/(100-grain·d)] 0.894 0.931 0.719 0.805 0.825 0.783 1.249 0.990 1.001
T3 (d) 25.431 20.853 29.506 24.318 29.321 32.107 18.022 23.118 20.437
R3 [g/(百粒·d)][g/(100-grain·d)] 0.250 0.261 0.201 0.225 0.231 0.219 0.231 0.277 0.281
P (d) 46.548 38.168 54.005 44.510 53.667 58.766 32.985 42.313 37.406
χ2 2.258 0.592 1.630 1.828 4.369 5.361 0.399 0.907 1.090
χ20.05 15.507

Fig.2

The dynamic change of grain filling rate of different maize varieties"

Table 4

Correlation between yield, yield components, and other traits and grouting parameters"

性状Trait Tmax Rmax T P R T1 T2 T3 R1 R2 R3 W1 W2 W3
产量Yield -0.35 0.28 -0.44 -0.35 0.41 -0.15 -0.35 -0.35 -0.01 0.28 0.28 -0.15 -0.15 -0.15
穗行数Spike row number -0.50 -0.51 -0.09 0.15 -0.40 -0.56 0.15 0.15 0.38 -0.51 -0.51 -0.51 -0.51 -0.51
行粒数Grain number per row -0.27 -0.19 0.10 0.25 -0.02 -0.39 0.25 0.25 0.40 -0.19 -0.19 0.17 0.17 0.17
千粒重1000-grain weight -0.03 -0.17 0.39 0.49 0.04 -0.30 0.49 0.49 0.50 -0.17 -0.17 0.65 0.65 0.65
穗长Spike length 0.25 -0.17 0.43 0.39 -0.10 0.03 0.39 0.39 0.14 -0.17 -0.17 0.57 0.57 0.57
穗粗Ear diameter 0.41 -0.25 0.69* 0.63 -0.21 0.05 0.63 0.63 0.25 -0.25 -0.25 0.82** 0.82** 0.82**
秃尖长Baldness length 0.30 0.50 -0.27 -0.48 0.33 0.55 -0.48 -0.48 -0.68 0.50 0.50 -0.07 -0.07 -0.07
轴粗Axial diameter 0.32 -0.18 0.51 0.45 -0.15 0.07 0.45 0.45 0.16 -0.18 -0.18 0.62 0.62 0.62
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