Crops ›› 2017, Vol. 33 ›› Issue (1): 68-72.doi: 10.16035/j.issn.1001-7283.2017.01.013

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Effects of Different Row Spacing on Agronomic Traits,Economic Traits and Yield of Broomcorn Millet

Li Hai,Yang Ruda,Lin Fengxian,Zhang Xiangyu,Liang Haiyan   

  1. Institute of the Crops in High Latitude ＆ Cold Climate Area,Shanxi Academy of Agricultural Sciences,Datong 037000,Shanxi,China
  • Received:2016-10-11 Revised:2016-12-08 Online:2017-02-15 Published:2018-08-26

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Abstract:

Broomcorn millet Jin 9 and eight row spacing were chosen to analyze the effects of different row spacing on agronomic traits, economic traits and yield of millet. Results showed that with the increasing of row spacing, the height, ear length, ear weight, ear grain weight, plant weight, harvest index and yield showed the trend of first rising and then decreasing, but the stem bottom diameter and tillers decreased gradually. Row spacing had no significant influence on height and 1000-grain weight, but had significant influence on tillers, ear weight and ear grain weight. Correlation analysis, multivariate regression analysis and path analysis showed that the yield had conspicuous correlations with height, ear length, stem bottom diameter, tillers, ear weight, ear grain weight, plant weight, harvest index. The greatest impacts on yield were ear length, tillers and ear grain weight. In addition, the factor analysis showed it was 35cm row spacing that had more ideal yield components, more even population spatial distribution and can get higher yield. The 30cm and 40cm row spacing took second place.

Key words: Broomcorn millet, Row spacing, Yield, Agronomic traits, Economic traits

Table 1

Different row spacing setting"

处理
Treatment		 1 2 3 4 5 6 7 8
行距(cm)
Row spacing		 25 30 35 40 45 50 55 60

Table 2

Effects of different row spacing on yield,agronomic traits and economic traits of broomcorn millet"

处理
Treatment		 株高(cm)
Height		 穗长(cm)
Ear length		 茎基粗(mm)
Stem bottom diameter		 有效分蘖数(个)
Effective tillers		 穗重(g)
Ear weight		 穗粒重(g)
Ear grain weight		 千粒重(g)
1000-grain weight		 单株重量(g)
Plant weight		 收获指数(%)
Harvest index		 产量(kg)
Yield
1 138.05a 33.98ab 0.77a 2.57a 10.94bcd 8.74bc 8.64a 17.90bc 48.80ab 4 540.95b
2 139.25a 34.13ab 0.74ab 2.06b 12.47abc 10.16ab 8.60a 21.52abc 47.20ab 4 896.15a
3 143.40a 35.59a 0.74ab 1.94b 14.40a 11.92a 8.61a 23.45a 50.81a 5 059.80a
4 141.10a 35.10a 0.68bc 1.64bc 13.23ab 10.69ab 8.62a 22.18ab 48.18ab 4 825.20a
5 139.35a 34.33ab 0.62c 1.44c 12.60abc 9.84abc 8.60a 20.60abc 47.77ab 4 546.50b
6 137.38a 33.95ab 0.62c 1.26cd 11.04bcd 8.82bc 8.61a 18.67abc 47.25ab 4 240.20c
7 136.35a 33.83ab 0.64c 0.91de 10.51cd 8.19bc 8.55a 18.07bc 45.32b 4 019.10cd
8 136.69a 32.00b 0.60c 0.75e 9.72d 7.62c 8.56a 16.97c 44.92b 3 837.00d

Table 3

Comparisons of difference of yield,agronomic traits and economic traits under different row spacing of broomcorn millet"

株高(cm)
Height		 穗长(cm)
Ear length		 茎基粗(mm)
Stem bottom diameter		 有效分蘖数(个)
Effective tillers		 穗重(g)
Ear weight		 穗粒重(g)
Ear grain weight		 千粒重(g)
1000-grain weight		 单株重量(g)
Plant weight		 收获指数(%)
Harvest index		 产量(kg)
Yield
平均值
Average value		 138.95 34.11 0.68 1.57 11.86 9.50 8.60 19.92 47.53 4 495.61
标准偏差
Standard deviation		 3.44 1.24 0.07 0.61 1.70 1.55 0.05 2.67 2.24 431.85
变异系数(%)
Coefficient of variation		 2.47 3.64 9.97 38.58 14.33 16.35 0.63 13.40 4.72 9.61
权重Weight (%) 2.18 3.20 8.77 33.93 12.61 14.38 0.55 11.79 4.15 8.45
位次Precedence 9 8 5 1 3 2 10 4 7 6

Table 4

Correlation analysis between yield and agronomic traits,economic traits"

性状
Traits		 株高X1
Height		 穗长X2
Ear length		 茎基粗X3
Stem bottom diameter		 有效分蘖数X4
Effective tillers		 穗重X5
Ear weight		 穗粒重X6
Ear grain weight		 千粒重X7
1000-grain weight		 单株重量X8
Plant weight		 收获指数X9
Harvest index		 产量Y
Yield
X1 1.000
X2 0.706** 1.000
X3 0.322 0.523* 1.000
X4 0.244 0.349 0.804** 1.000
X5 0.601* 0.756** 0.448 0.371 1.000
X6 0.595* 0.746** 0.487 0.394 0.994** 1.000
X7 -0.134 -0.106 0.180 0.515* 0.155 0.152 1.000
X8 0.661** 0.765** 0.424 0.276 0.966** 0.970** 0.220 1.000
X9 0.172 0.406 0.516* 0.638** 0.699** 0.707** 0.492 0.515* 1.000
Y 0.653** 0.810** 0.683** 0.662** 0.859** 0.864** 0.232 0.818** 0.678** 1.000

Table 5

Path analysis of yield and agronomic traits, economic traits under different row spacing of broomcorn millet"

通径
Path		 直接作用
Direct effects		 间接作用Indirect effects
总和Sum →X2 →X4 →X6
X2→Y 0.329 0.481 0.125 0.356
X4→Y 0.359 0.303 0.115 0.188
X6→Y 0.477 0.386 0.245 0.141

Table 6

The filter of principal factor"

成分
Factors		 合计
Total		 方差(%)
Variance		 累计(%)
Accumulative total
1 7.664 76.640 76.640
2 1.536 15.362 92.001

Table 7

Principle factor and the score of comprehensive factor"

处理Treatment FAC1 FAC2 F1 F2 综合因子Comprehensive factor
1 0.216 2.307 0.597 2.858 0.974
2 0.471 0.313 1.303 0.388 1.150
3 1.539 -0.705 4.260 -0.873 3.403
4 0.765 -0.546 2.117 -0.677 1.651
5 0.100 -0.665 0.277 -0.824 0.093
6 -0.471 0.076 -1.304 0.094 -1.071
7 -1.067 -0.517 -2.954 -0.641 -2.568
8 -1.552 -0.263 -4.295 -0.326 -3.632
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