Crops ›› 2018, Vol. 34 ›› Issue (5): 91-96.doi: 10.16035/j.issn.1001-7283.2018.05.014

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Effects of Different Row Spacing and Planting Density on the Growth Characteristics and Yield of Millet

Zhang Xiangyu,Li Hai,Liang Haiyan,Zhang Zhi,Song Xiaoqiang,Zheng Minna   

  1. High Latitude Crops Institute, Shanxi Academy of Agriculture Sciences, Datong 037008, Shanxi, China
  • Received:2018-05-31 Revised:2018-08-13 Online:2018-10-15 Published:2018-10-12

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Abstract:

To explore and develop the production potential of broomcorn millet in the arid and semi-arid region of northern Shanxi Province, different planting density and row spacing treatment combinations of broomcorn millet were plotted out to study the effects on millet yield and quality. The results showed that the yield components of the A2B3 treatment were significantly higher than the those of other treatments. At mature stage the leaf area index value of the A2B3 treatment was lower than that in the heading stage, but it was still higher than rest of the other treatments. At the mature stage, the total amount of dry matter accumulation in A3B2 and A3B3 was relatively high, 13.17g and 13.18g respectively. Comprehensive grey correlation analysis results showed that A2B3 (30cm row spacing, density of 1.05 million plants/hm 2), A3B3 (35cm row spacing, density of 1.05 million plants/hm 2), A2B2 (30cm row spacing, density of 750 000 plants/hm 2) treatment combination were suitable to be used in north region of Shanxi Province.

Key words: Millet, Row spacing, Planting density, Growth characteristics, Production, Grey relational analysis

Table 1

Different row spacing and density treatment combinations of millet"

处理Treatment 行距Row spacing (cm) 种植密度Density (×104/hm2)
A1B1 25 50
A1B2 25 75
A1B3 25 105
A1B4 25 135
A1B5 25 150
A2B1 30 50
A2B2 30 75
A2B3 30 105
A2B4 30 135
A2B5 30 150
A3B1 35 50
A3B2 35 75
A3B3 35 105
A3B4 35 135
A3B5 35 150

Table 2

Changes of agronomic traits of millet under different row spacing and density"

处理
Treatment		 株高(cm)
Plant height		 穗长(cm)
Ear length
 茎基粗(cm)
Stem base crude		 穗重(g)
Panicle weight		 穗粒重(g)
Grain weight per panicle		 千粒重(g)
1000-grain weight
A1B1 125.06i 30.12cd 0.72b 9.28e 7.71e 8.33b
A1B2 133.12h 31.52bc 0.74b 9.82cde 7.98e 8.49b
A1B3 140.05g 34.68ab 0.77ab 10.71bcd 8.58cd 9.12b
A1B4 146.23de 29.05ef 0.65cde 7.31f 5.67gh 6.14c
A1B5 151.66abc 26.15f 0.59ef 6.57f 5.04h 5.65c
A2B1 128.17i 31.45bc 0.75ab 9.69de 7.83e 8.46b
A2B2 134.75h 33.32abc 0.77ab 11.36bc 8.97c 9.33ab
A2B3 142.66ef 36.19a 0.81a 12.57a 10.89a 11.78a
A2B4 148.11cd 30.11de 0.69cd 7.28f 5.99g 6.34c
A2B5 152.39ab 28.43ef 0.62def 7.03f 5.14gh 5.54d
A3B1 130.12i 32.66bc 0.73ab 9.76f 7.67e 8.31b
A3B2 134.43h 34.98ab 0.76ab 9.98cde 8.12de 8.56b
A3B3 143.18fg 35.49a 0.79ab 11.23bcde 9.45b 9.98ab
A3B4 149.77bc 29.56de 0.66c 7.43b 6.03f 6.75c
A3B5 153.69a 28.88ef 0.58f 6.99f 5.11gh 6.01c

Fig.1

Influence of different row spacing and density on the leaf area index of milletDifferent lowercase are significantly difference at the 0.05 probability level"

Table 3

Changes of dry matter accumulation of millet under different row spacing and densities g"

处理
Treatment		 苗期Seedling stage 拔节期Jointing stage 抽穗期Heading stage 成熟期Mature stage
茎Stem 叶Leaf 穗Ear 茎Stem 叶Leaf 穗Ear 茎Stem 叶Leaf 穗Ear 茎Stem 叶Leaf 穗Ear
A1B1 0.24e 0.05e - 1.10d 0.37e - 1.79f 0.71f - 2.70fg 1.07d 4.98e
A1B2 0.39b 0.16b - 1.28cd 0.71a - 2.32cd 1.21c - 3.69b 1.63b 7.73a
A1B3 0.36c 0.11cd - 1.32c 0.62b - 2.39c 1.25c - 3.70b 1.64b 7.61b
A1B4 0.38bc 0.14c - 1.38b 0.52d - 2.29d 1.15e - 3.40e 1.48cd 6.95d
A1B5 0.39b 0.17b - 1.37b 0.62b - 2.40c 1.24c - 3.54d 1.59bc 7.17cd
A2B1 0.21f 0.07e - 1.09d 0.35e - 1.93e 0.62g - 2.92f 0.97de 5.23e
A2B2 0.38bc 0.17b - 1.37b 0.54cd - 2.77a 1.32b - 3.82a 1.69a 7.62b
A2B3 0.34cd 0.15c - 1.32bc 0.69a - 2.67b 1.38a - 3.72ab 1.75a 7.66ab
A2B4 0.40b 0.11cd - 1.34b 0.37e - 2.59bc 1.22c - 3.51c 1.48cd 7.37c
A2B5 0.46a 0.14c - 1.39a 0.49d - 2.73ab 1.33b - 3.74ab 1.71a 7.16cd
A3B1 0.18f 0.05e - 1.13d 0.28f - 1.77f 0.59g - 2.57g 0.77e 4.77f
A3B2 0.39b 0.20a - 1.36b 0.71a - 2.65b 1.29b - 3.72ab 1.69a 7.76a
A3B3 0.37bc 0.16b - 1.41a 0.57c - 2.71ab 1.31b - 3.76a 1.63bc 7.79a
A3B4 0.40b 0.12c - 1.36b 0.51d - 2.68b 1.24c - 3.24df 1.56c 7.42bc
A3B5 0.43ab 0.14c - 1.42a 0.57c - 2.71ab 1.32b - 3.58c 1.66ab 7.68ab

Table 4

Changes in grain yield and harvest index under different row spacing and densities"

处理
Treatment		 2016 2017 子粒产量平均值
Average
(kg/hm2)
子粒产量(kg/hm2)
Grain yield		 收获指数(%)
Harvest index		 子粒产量(kg/hm2)
Grain yield		 收获指数(%)
Harvest index
A1B1 3 363.22b 47.80ab 3 280.11c 50.19b 3 321.67
A1B2 3 470.97ab 46.20ab 3 774.23a 48.56bc 3 622.60
A1B3 3 571.02ab 47.92ab 3 554.12ab 50.32b 3 562.57
A1B4 1 708.54c 35.62cd 1 878.11d 37.44d 1 793.33
A1B5 1 254.47d 33.68d 1 356.21e 35.36d 1 305.34
A2B1 3 355.52b 47.18ab 3 468.7b 49.59b 3 412.11
A2B2 3 532.53ab 48.11ab 3 715.26a 50.52b 3 623.90
A2B3 3 655.67a 50.80a 3 812.96a 53.39a 1 846.90
A2B4 1 700.85c 39.23c 1 706.35d 41.19c 1 703.60
A2B5 1 123.64d 33.01d 1 356.34e 34.69e 1 239.99
A3B1 3 340.13b 46.77b 3 661.47ab 49.11b 3 500.80
A3B2 3 455.57ab 46.25b 3 726.14a 48.61bc 3 590.86
A3B3 3 547.93ab 44.32b 3 619.54ab 46.54b 3 583.74
A3B4 1 670.06c 44.01b 1 766.32d 46.25b 1 718.19
A3B5 1 108.25d 31.95e 1 308.14e 33.55f 1 208.20

Table 5

The rank and relational grade of different treatments"

处理
Treatment		 等权关联度
Ri		 排序
Order		 加权关联度
Weighted grey correlative		 排序
Order
A1B1 0.6500 9 0.6509 9
A1B2 0.7498 6 0.7634 6
A1B3 0.8170 4 0.8259 4
A1B4 0.5429 13 0.5635 13
A1B5 0.5218 15 0.5479 15
A2B1 0.6811 7 0.6823 7
A2B2 0.8328 3 0.8386 3
A2B3 0.9127 1 0.9093 1
A2B4 0.5576 11 0.5829 11
A2B5 0.5245 14 0.5513 14
A3B1 0.6678 8 0.6709 8
A3B2 0.7649 5 0.7807 5
A3B3 0.8472 2 0.8595 2
A3B4 0.5680 10 0.5938 10
A3B5 0.5476 12 0.5782 12
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