Scientia Agricultura Sinica ›› 2021, Vol. 54 ›› Issue (6): 1127-1142.doi: 10.3864/j.issn.0578-1752.2021.06.005

• TILLAGE & CULTIVATION·PHYSIOLOGY & BIOCHEMISTRY·AGRICULTURE INFORMATION TECHNOLOGY • Previous Articles     Next Articles

Effects of Agronomic Managements on Yield and Lodging Resistance of Millet

CuiQing WU1(),JingXin SUN2,PingYi GUO3(),HongFu WANG3,XinHui WU1   

  1. 1College of Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi
    2Mechanical and Electronic Engineering Department, Yuncheng University, Yuncheng 044000, Shanxi
    3College of Agriculture, Shanxi Agricultural University, Taigu 030801
  • Received:2020-06-19 Accepted:2020-07-30 Online:2021-03-16 Published:2021-03-25
  • Contact: PingYi GUO E-mail:gcywcq@163.com;pyguo@sxau.edu.cn

Abstract:

【Objective】In order to study the effect of interaction treatment cultivation conditions on yield of millet and the biomechanical properties of quantitative evaluation of lodging resistance. 【Method】In this paper, using split zone design, four millet varieties with representativeness in production were selected. Based on interaction treatment cultivation conditions of different seeding density and fertilization, seeding density and water, water and fertilization conditions, the effects of cultivation measures on the growth and development of millet and the biomechanical properties of stem on lodging resistance were systematically studied. 【Result】(1) Except for the effect of water on the average diameter of millet stalk, the yield, photosynthetic physiological characteristics and stem characteristics of millet were significantly affected by four factors: millet variety, fertilization amount, sowing density and water content (P<0.001). (2) The 1 000-grain weight and yield of millet increased with the increase of fertilizer and water. With the increase of seed density, 1 000-grain weight decreased, and the yield increased first and then decreased. The SPAD value and the maximum fluorescence value (Fm) of millet flag leaf at flowering stage were significantly higher than that at filling stage. The SPAD value of flag leaf at flowering stage and Fm value of flag leaf at filling stage were used as the target traits of millet breeding. (3) The effect of sowing density on the lodging rate in millet was the greatest, followed by the influence of water and variety, while the effect of fertilization was the least. (4) The tensile force of the penultimate node of millet stem was negatively correlated with plant height, average length of nodes and moisture of stem nodes, and positively correlated with average diameter of nodes. 【Conclusion】Under the interaction treatment cultivation conditions of different agronomic measures, the single factor had the greatest influence on the yield of millet, plant photosynthetic physiological characteristics and stem mechanical properties. Selecting fine varieties, reasonable close planting (≤700 000 plants/hm2) and proper water and fertilizer were effective measures to improve the quality of millet, to increase yield, and to reduce the lodging rate in the field.

Key words: millet, agronomic measures, photosynthetic characteristics of leaves, biomechanical properties of stem, influence mechanism

Fig. 1

Test on bending properties of millet stem"

Table 1

Effects and significance analysis of different fertilizer application amount and density on the yield of millet, the physiological characteristics of photosynthesis and the characteristics of stalk"

品种
Variety
施肥量
Fertilizer application amount (kg·hm-2)
播种密度
Seeding density
(×104 plants/hm2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm
Maximum Fm value at flowering stage
灌浆期
最大Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度Average section length (cm)
节平均
直径Average section diameter (cm)
优谷49
Yougu49
0 50 2.82 3313.23 36.21 34.18 2438 2197 0.77 128.26 4.18 0.93
60 2.53 3688.15 35.89 34.36 2501 2221 2.93 132.21 4.37 0.89
70 2.01 3728.45 35.31 34.09 2588 2291 4.52 134.35 4.51 0.86
80 1.75 3589.32 35.19 33.89 2611 2348 6.72 138.66 4.62 0.78
90 50 3.1 3642.15 37.15 35.62 2568 2291 0.81 134.15 4.54 1.08
60 2.98 3712.61 37.24 36.01 2671 2418 2.86 137.33 4.72 1.03
70 2.67 3855.73 37.64 36.83 2721 2510 4.5 138.96 4.86 0.95
80 2.5 3799.12 37.12 36.98 2815 2600 6.64 142.50 4.96 0.86
180 50 3.28 3723.45 38.61 35.98 2731 2380 0.79 140.61 4.83 1.19
60 3.1 3746.11 38.38 35.91 2894 2522 2.91 141.46 4.91 1.11
70 2.99 3851.12 38.11 35.28 2931 2644 4.55 144.28 5.04 1.07
80 2.73 3888.56 38.01 35.73 3002 2741 6.57 144.85 5.21 0.95
270 50 3.33 3955.16 40.15 38.33 2845 2531 0.75 144.22 4.95 1.36
60 3.28 4255.87 39.95 37.66 3008 2648 2.88 146.27 5.06 1.24
70 3.14 4653.12 39.30 37.51 3132 2749 4.49 149.27 5.13 1.18
80 2.99 4878.66 39.12 37.98 3254 2841 6.6 149.37 5.34 1.12
公谷65
Gonggu65
0 50 2.32 3689.12 38.63 36.33 2594 2286 0.43 106.77 3.62 1.12
60 2.21 3700.54 38.45 36.42 2655 2308 1.66 110.07 3.76 1.06
70 2.00 3751.21 37.95 36.01 2711 2364 2.97 112.24 3.88 1.02
80 1.97 3566.22 37.33 36.51 2803 2416 4.11 115.58 4.02 0.93
90 50 2.55 3762.11 40.21 37.86 2615 2322 0.45 110.39 3.89 1.21
60 2.40 3815.26 40.09 37.64 2711 2491 1.64 113.24 4.04 1.17
70 2.24 3954.65 40.16 37.91 2808 2611 2.85 115.70 4.14 1.09
80 1.88 3866.55 40.01 38.2 2902 2691 4.1 118.36 4.43 0.94
180 50 2.85 3966.87 42.58 40.36 2799 2491 0.38 114.50 4.14 1.28
60 2.62 4118.32 42.14 40.21 2945 2621 1.59 116.06 4.26 1.22
70 2.41 4523.62 42.53 40.32 3041 2715 2.9 118.88 4.45 1.18
80 2.31 4526.98 42.21 40.76 3112 2801 4.08 120.59 4.61 1.04
270 50 3.23 4000.59 44.87 42.82 3002 2605 0.4 116.85 4.28 1.39
60 3.18 4315.87 44.55 42.31 3155 2713 1.62 118.93 4.40 1.31
70 3.05 4688.15 44.1 42.08 3207 2822 2.93 122.19 4.52 1.24
80 2.97 4766.52 43.95 42.24 3310 2924 4.11 123.78 4.72 1.18
品种
Variety
施肥量
Fertilizer application amount (kg·hm-2)
播种密度
Seeding density
(×104 plants/hm2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm
Maximum Fm value at flowering stage
灌浆期
最大Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度Average section length (cm)
节平均
直径Average section diameter (cm)
长生18
Changsheng18
0 50 2.58 2802.12 38.49 36.52 2591 2268 0.46 109.52 3.90 1.03
60 2.15 2983.25 38.56 36.37 2677 2315 1.58 113.14 4.06 0.98
70 1.90 3001.22 38.17 36.24 2436 2381 3.01 115.29 4.19 0.94
80 1.73 2800.65 37.07 36.28 2799 2384 4.34 119.12 4.32 0.86
90 50 2.78 3052.65 40.53 38.14 2693 2411 0.45 114.27 4.21 1.18
60 2.43 3210.48 40.68 38.39 2751 2414 1.61 117.28 4.38 1.11
70 2.12 3663.11 40.35 38.07 2824 2670 2.99 119.33 4.50 1.02
80 2.08 3608.65 40.21 38.57 2891 2705 4.25 122.43 4.72 0.93
180 50 3.17 3852.44 42.37 39.91 2737 2432 0.39 119.55 4.49 1.23
60 3.01 3991.84 42.78 39.84 2907 2611 1.65 120.76 4.58 1.17
70 2.85 4023.77 42.64 39.39 3111 2761 2.97 123.58 4.74 1.13
80 2.62 4108.74 42.11 39.82 3212 2811 4.18 124.72 4.91 1.01
270 50 3.48 4150.12 44.60 43.15 3021 2633 0.43 122.53 4.62 1.39
60 3.21 4313.52 43.55 42.73 3108 2733 1.6 124.60 4.73 1.28
70 3.09 4758.66 43.81 42.05 3242 2861 2.86 127.73 4.83 1.21
80 2.76 4908.12 43.34 42.65 3351 2968 4.21 128.56 5.03 1.15
农谷04
Nonggu04
0 50 2.42 3752.15 41.37 39.1 2833 2610 0.18 85.27 3.07 1.31
60 2.28 3855.3 41.61 39.28 2911 2733 0.84 87.93 3.15 1.24
70 1.99 3927.54 42.3 38.91 3001 2811 1.61 90.13 3.25 1.19
80 1.71 3733.15 42.19 38.84 3189 2910 2.15 92.49 3.43 1.08
90 50 3.03 4322.87 43.58 41.64 2905 2711 0.2 86.62 3.23 1.35
60 2.74 4562.12 43.31 41.71 3054 2831 0.82 89.15 3.37 1.31
70 2.21 4755.61 43.14 41.25 3214 2931 1.59 92.44 3.43 1.23
80 2.03 4689.31 43.01 41.82 3211 3007 2.13 94.25 3.91 1.02
180 50 3.31 4511.56 45.62 44.04 3047 2878 0.21 88.39 3.45 1.38
60 3.10 4750.12 45.88 44.34 3189 2904 0.86 90.66 3.62 1.34
70 2.99 4832.5 45.38 44.6 3385 3021 1.64 93.47 3.86 1.29
80 2.85 4899.73 45.21 44.86 3299 3121 2.19 96.33 4.02 1.13
270 50 3.46 4723.45 46.99 43.85 3141 2918 0.19 89.48 3.61 1.42
60 3.21 4921.63 46.25 43.37 3321 3009 0.87 91.59 3.74 1.38
70 3.07 5144.89 47.08 44.52 3411 3015 1.62 95.1 3.92 1.31
80 2.98 5312.1 46.83 44.76 3511 3148 2.08 98.19 4.11 1.25
品种
Variety
施肥量
Fertilizer application amount (kg·hm-2)
播种密度
Seeding density
(×104 plants/hm2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm
Maximum Fm value at flowering stage
灌浆期
最大Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度Average section length (cm)
节平均
直径Average section diameter (cm)
品种
Variety
F 26.25 199.75 993.46 952.19 224.97 394.05 13641.6 16960.9 2542.57 622.53
P <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
施肥量
Fertilization
F 290.61 345.05 695.54 734.63 222.00 330.33 3.570 112.14 137.83 136.96
P <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
播种密度
Seeding density
F 107.27 47.05 7.59 7.37 78.13 172.34 34833.5 73.63 64.22 114.79
P <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
品种×施肥量
Variety×Fertilization
F 6.34 19.01 8.28 31.82 2.10 4.20 1.330 27.84 0.660 26.42
P <0.001 <0.001 <0.001 <0.001 0.046 0.0018 0.267 <0.001 0.595 <0.001
品种×播种密度
Variety×Seeding density
F 1.03 0.23 0.97 0.65 0.80 0.63 1446.65 0.34 1.46 1.910
P 0.440 0.9864 0.486 0.747 0.620 0.764 <0.001 0.800 0.290 0.199
施肥量×播种密度
Fertilization×Seeding density
F 2.13 7.37 0.74 1.32 2.05 3.06 1.340 0.490 0.450 1.670
P 0.05 <0.001 0.669 0.272 0.061 0.052 0.265 0.847 0.876 0.228

Table 2

Effects and significance analysis of different water and density on the yield of millet, the physiological characteristics of photosynthesis and the characteristics of stalk"

品种Variety 水分Water 播种密度
Seeding density
(×104 plants/hm2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm
Maximum Fm value at flowering stage
灌浆期最大
Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度
Average section length
(cm)
节平均
直径Average section diameter (cm)
优谷49
Yougu49
W0 50 3.01 3308.56 35.92 33.41 2497 2218 0.15 125.46 3.94 0.84
60 2.93 3451.19 36.01 33.56 2515 2173 0.62 128.97 4.08 0.76
70 2.83 3542.51 36.81 33.7 2454 2237 2.44 131.11 4.15 0.68
80 2.79 3508.11 35.88 33.63 2497 2218 4.17 134.28 4.31 0.62
W1 50 3.22 3470.96 38.03 35.66 2681 2315 0.46 139.34 4.5 0.95
60 3.15 3597.33 38.11 35.48 2704 2408 0.93 145.36 4.62 0.92
70 3.09 3648.1 39.99 35.54 2655 2432 2.95 146.25 4.84 0.75
80 3.07 3660.12 38.12 35.61 2573 2342 5.31 149.26 5.16 0.69
W2 50 3.27 3500.78 40.52 37.24 2715 2501 0.85 150.69 5.13 1.13
60 3.18 3669.55 40.13 37.04 2822 2613 1.28 154.18 5.46 1.07
70 3.15 3730.18 40.28 37.46 2728 2570 3.41 157.73 5.64 0.83
80 3.12 3618.24 40.78 37.38 2844 2588 6.54 158.44 5.72 0.76
公谷65
Gonggu65
W0 50 2.67 3666.18 37.65 35.84 2597 2314 0.51 104.29 3.48 1.03
60 2.51 3842.55 37.66 35.72 2601 2344 0.97 107.54 3.64 0.92
70 2.42 3903.17 38.03 35.91 2637 2341 1.92 109.11 3.74 0.82
80 2.39 3852.47 37.81 35.64 2600 2307 3.28 111.23 3.91 0.73
W1 50 2.83 3743.58 39.73 37.81 2734 2548 0.84 115.43 4.07 1.13
60 2.71 3891.51 39.88 37.67 2781 2561 1.35 119.97 4.19 1.08
70 2.69 3991.07 39.55 37.47 2787 2499 2.51 121.26 4.39 0.91
80 2.5 3855.24 39.64 38.01 2801 2561 3.61 124.25 4.67 0.83
W2 50 3.04 3804.66 44.53 41.37 2918 2741 1.12 123.58 4.60 1.26
60 2.91 3951.87 44.28 41.09 2933 2712 1.69 126.51 4.81 1.19
70 2.7 3991.55 44.61 41.71 2976 2687 2.86 128.94 4.94 1.03
80 2.61 3812.41 44.56 41.31 2987 2781 4.16 130.51 5.06 0.97
长生18
Changsheng 18
W0 50 3.12 2905.41 37.38 35.71 2581 2370 0.49 106.86 3.61 0.97
60 3.04 3138.21 37.61 35.22 2631 2347 0.89 110.25 3.76 0.88
70 2.91 3324.55 38.1 36.11 2641 2359 2.1 112.11 3.84 0.79
80 2.85 3288.1 37.91 35.82 2674 2351 3.25 114.75 4.01 0.71
W1 50 3.21 3011.64 39.54 37.61 2751 2508 0.92 119.38 4.18 1.08
60 3.09 3308.54 39.66 37.12 2753 2548 1.42 124.66 4.30 1.04
70 3.04 3501.62 39.81 37.64 2750 2531 2.66 125.75 4.51 0.87
80 2.77 3480.51 39.41 37.65 2765 2510 3.57 128.75 4.78 0.80
品种Variety 水分Water 播种密度
Seeding density
(×104 plants/hm2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm
Maximum Fm value at flowering stage
灌浆期最大
Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度
Average section length
(cm)
节平均
直径Average section diameter (cm)
W2 50 3.3 3238.14 44.37 41.09 2897 2760 1.23 129.13 4.77 1.23
60 3.19 3573.11 44.15 41.24 2971 2759 1.83 132.34 5.03 1.17
70 3.1 3605.52 44.87 41.52 2949 2731 2.91 135.33 5.19 0.97
80 2.95 3541.73 43.98 41.19 2941 2762 4.22 136.47 5.29 0.91
农谷04
Nonggu04
W0 50 3.31 3681.62 41.68 39.43 2830 2571 0 83.12 3.02 1.21
60 3.24 3810.55 41.83 39.33 2841 2566 0.62 86.11 3.21 1.09
70 3.15 3972.51 41.55 39.34 2861 2546 1.13 87.11 3.34 0.96
80 3.01 3830.15 41.28 36.54 2811 2537 2.12 88.19 3.51 0.85
W1 50 3.41 3804.51 43.56 41.38 2991 2671 0.33 91.53 3.65 1.32
60 3.3 3961.85 43.81 41.22 3001 2697 0.97 94.59 3.76 1.23
70 3.21 4052.61 44.01 41.56 3042 2751 1.42 96.28 3.95 1.06
80 3.09 3967.1 43.91 41.37 3015 2736 2.74 99.24 4.06 0.97
W2 50 3.62 4321.07 46.58 42.3 3215 2941 0.76 96.47 4.09 1.38
60 3.41 4581.61 46.78 43.62 3294 2978 1.25 98.84 4.16 1.31
70 3.32 4879.31 46.51 43.26 3294 2941 1.71 100.15 4.25 1.23
80 3.15 4752.91 46.91 44.18 3271 2950 3.13 102.59 4.37 1.18
水分
Water
F 129.71 139.43 1086.38 313.47 478.27 705.38 87.30 1336.41 348.16 1.41
P <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.315
品种×水分
Variety×Water
F 5.86 38.74 19.57 4.64 5.19 7.41 5.05 124.21 13.01 0.70
P 0.0016 <0.001 <0.001 0.005 0.003 <0.001 <0.001 <0.001 0.007 0.533
播种密度×水分
Seeding density×Water
F 1.26 0.41 0.66 1.12 1.15 1.48 2.26 0.90 0.49 0.55
P 0.325 0.860 0.682 0.388 0.377 0.241 0.084 0.549 0.796 0.755

Table 3

Effects and significance analysis of different fertilizer application amount and water on the yield of millet, the physiological characteristics of photosynthesis and the characteristics of stalk"

品种
Variety
水分Water 施肥量
Fertilizer application amount (kg·hm-2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm Maximum Fm value at flowering stage
灌浆期
最大Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度Average section length (cm)
节平均
直径Average section diameter (cm)
优谷49
Yougu49
W0 0 2.11 2850.14 31.04 29.57 2253 2004 0.85 123.85 3.83 0.69
90 2.24 2931.15 33.72 31.08 2345 2136 0.88 130.49 3.91 0.85
180 2.79 3125.41 35.74 32.98 2388 2206 0.91 138.62 3.95 0.96
270 2.91 3274.52 38.51 36.46 2490 2291 0.95 145.61 4.01 1.05
W1 0 2.41 2956.48 33.61 30.81 2361 2151 2.17 132.54 4.03 0.93
90 2.62 3243.51 35.47 32.58 2411 2208 2.24 143.62 4.24 1.02
180 2.97 3542.1 37.93 35.46 2497 2291 2.38 149.38 4.46 1.16
270 3.21 3732.54 40.37 38.61 2556 2347 2.46 157.91 4.86 1.28
W2 0 2.61 3125.24 36.21 34.38 2456 2218 3.55 137.51 5.05 1.19
90 2.83 3381.71 39.31 37.44 2561 2294 3.61 149.62 5.26 1.26
180 3.31 3841.52 42.55 40.17 2634 2350 3.73 158.56 5.58 1.30
270 3.38 4415.05 45.53 42.8 2731 2424 3.92 162.38 5.82 1.33
公谷65
Gonggu65
W0 0 2.83 2893.1 33.46 31.87 2364 2120 0.55 102.51 3.40 0.76
90 2.91 2955.41 35.97 33.71 2431 2189 0.67 107.92 3.49 0.95
180 3.05 3054.21 37.15 35.81 2521 2234 0.74 113.93 3.64 1.07
270 3.12 3258.61 40.08 38.66 2611 2300 0.81 119.58 3.77 1.19
W1 0 2.97 2986.12 36.01 34.51 2451 2270 1.93 109.64 3.62 1.06
90 3.15 3125.85 38.44 36.53 2513 2310 2.01 116.90 3.89 1.16
180 3.24 3396.41 40.18 38.97 2609 2394 2.14 122.33 4.15 1.29
270 3.38 4215.63 43.86 41.2 2687 2421 2.21 129.76 4.43 1.41
W2 0 3.15 3215.45 40.36 38.72 2531 2344 2.63 114.82 4.39 1.33
90 3.32 3752.15 42.53 39.06 2598 2411 2.85 124.16 4.61 1.42
180 3.38 4391.25 45.71 42.94 2638 2481 2.99 131.41 4.88 1.46
270 3.94 4758.61 49.52 46.38 2734 2521 3.12 135.38 5.12 1.51
长生18
Changsheng18
W0 0 2.12 2935.87 33.58 31.9 2378 2098 0.61 105.18 3.51 0.74
90 2.38 3212.55 36.03 33.67 2458 2172 0.76 111.20 3.6 0.92
180 2.45 3354.45 37.35 35.43 2546 2262 0.83 118.27 3.69 1.03
270 2.81 3569.71 40.34 38.61 2648 2316 0.95 124.59 3.79 1.14
W1 0 2.32 3254.21 35.97 34.61 2435 2253 1.84 113.09 3.72 1.01
90 2.54 3480.54 38.78 36.49 2547 2324 1.95 122.26 3.96 1.11
180 2.61 3715.33 40.37 39.02 2597 2405 2.11 127.85 4.20 1.24
270 2.94 3854.88 44.08 41.53 2638 2485 2.38 135.83 4.52 1.36
品种
Variety
水分Water 施肥量
Fertilizer application amount (kg·hm-2)
产量
Yield
光合生理特性
The physiological characteristics of photosynthesis
茎秆形态特性指标
Morphological index of stalk
千粒重
1000- grain weight (g)
产量
Yield (kg·hm-2)
开花期SPAD
SPAD value at flowering stage
灌浆期SPAD
SPAD value at filling stage
开花期
最大Fm Maximum Fm value at flowering stage
灌浆期
最大Fm
Maximum Fm value at filling stage
倒伏率
Lodging rate
(%)
株高
Plant height
(cm)
节平均
长度Average section length (cm)
节平均
直径Average section diameter (cm)
W2 0 2.71 3562.73 40.51 39.04 2514 2361 2.59 118.16 4.62 1.28
90 2.94 3758.51 42.84 39.37 2604 2424 2.81 128.89 4.83 1.36
180 3.05 4210.55 46.03 43.57 2641 2482 3.02 136.98 5.13 1.40
270 3.28 4452.19 53.44 50.09 2759 2553 3.26 140.88 5.37 1.44
农谷04
Nonggu04
W0 0 2.83 3931.15 37.55 35.42 2631 2411 0.35 81.16 2.97 0.83
90 2.91 4125.51 40.05 37.81 2697 2499 0.51 85.36 3.06 1.06
180 2.97 4341.89 42.82 39.81 2748 2543 0.66 89.24 3.33 1.18
270 3.02 4480.91 44.6 42.15 2799 2601 0.79 93.55 3.52 1.34
W1 0 2.91 4215.51 40.02 38.61 2711 2500 1.12 86.75 3.21 1.19
90 2.97 4651.25 43.01 39.94. 2794 2591 1.32 90.18 3.54 1.31
180 3.04 4792.85 44.88 42.53 2841 2654 1.55 95.28 3.83 1.43
270 3.12 4931.66 47.21 45.67 2951 2744 1.72 101.61 3.92 1.52
W2 0 3.12 4562.78 44.67 41.08 2815 2591 2.14 92.13 3.72 1.47
90 3.16 4680.15 47.36 45.71 2901 2650 2.32 98.7 3.96 1.58
180 3.25 4963.88 50.61 47.85 2981 2731 2.53 104.27 4.18 1.62
270 3.34 5099.16 56.44 53.21 3051 2812 2.68 108.39 4.41 1.69
施肥量×水分
Fertilization×Water
F 2.45 3.00 9.57 3.71 0.27 0.65 8.94 3.78 1.54 1.00
P 0.008 0.033 <0.001 0.015 0.945 0.692 <0.001 0.065 0.308 0.499

Table 4

Mechanical properties of bending test indexes of millet internode materials"

品种Variety 节间号
Internode number
x1 x2 x3 x4 x5 x6 x7 x8
优谷49
Yougu49
2 58.48 5.77 1.64 19.72 50.58 8.20 66.00 3351.27
3 66.45 5.58 1.27 15.97 43.04 7.78 85.59 3307.48
4 70.32 5.41 1.28 11.39 38.35 7.88 267.49 6216.71
5 71.17 5.18 0.99 8.26 30.83 6.91 242.42 5984.24
6 75.19 5.22 1.23 6.23 32.54 5.30 202.08 5876.60
7 74.65 5.05 0.76 6.37 24.08 6.58 231.22 5002.71
8 72.62 4.84 1.02 5.82 23.79 5.67 207.47 4629.23
9 62.74 4.71 0.84 5.72 20.93 5.58 161.66 3025.60
长生18
Chngsheng18
2 79.92 5.80 1.00 24.33 46.04 19.15 819.93 35813.86
3 90.25 5.59 1.11 24.11 42.57 19.77 1803.43 65657.45
4 95.95 5.52 1.04 21.65 38.20 20.70 1958.21 75945.25
5 100.9 5.46 0.98 18.33 36.1 20.55 1790.90 65397.58
6 108.73 5.56 0.99 18.15 39.85 19.73 2074.54 75260.26
7 118.00 5.61 0.93 11.80 39.88 14.38 1976.19 65882.87
8 120.63 5.44 0.96 8.68 35.36 12.71 2090.74 71956.06
9 112.78 4.87 1.01 7.09 31.08 12.99 2024.70 65480.40
农谷04
Nonggu04
2 99.58 5.43 1.22 27.65 38.90 25.97 3410.90 125066.4
3 98.58 5.42 1.13 26.17 37.62 25.49 2384.21 89525.67
4 99.63 5.50 1.12 25.20 40.57 23.30 2282.41 77038.83
5 103.1 5.4 1.1 23.18 36.60 21.61 2641.53 95042.87
6 110.93 5.64 1.06 19.55 42.90 20.07 2704.77 110469.6
7 123.02 5.53 1.03 13.58 38.69 17.68 3113.13 118829.0
8 140.23 5.47 0.9 9.47 35.95 15.87 3052.45 98064.6
9 138.47 4.98 0.87 8.99 29.5 16.63 3615.22 86620.53
品种Variety <0.001 0.0292 0.2476 <0.001 0.1382 <0.001 <0.001 <0.001
节间Intersegment 0.034 0.0098 0.0554 <0.001 0.0076 0.0514 0.9714 0.9495

Table 5

Correlation coefficient between millet stem ability to resist lodging and the characteristics of stalk"

品种
Variety
茎秆形态特性指标 Morphological index of stalk
株高
Plant height (cm)
节平均长度
Average section length(cm)
茎秆平均含水率
Average moisture content of stems (%)
节平均直径
Average section diameter (cm)
优谷49 Yougu49 -0.71** -0.62** -0.59* 0.82**
农谷04 Nonggu04 -0.56** -0.51** -0.58* 0.79**

Table 6

Relational grade between millet thousand grains weight and leaf traits"

性状 Characteristics 时期 Stages 优谷49 Yougu 49 公谷65 Gonggu 65 长生18 Changsheng 18 农谷04 Nonggu 04
SPAD 开花期 Flowering stage 0.76 0.68 0.71 0.86
灌浆期 Filling stage 0.52 0.49 0.49 0.37
Fm 开花期 Flowering stage 0.44 0.31 0.48 0.44
灌浆期 Filling stage 0.54 0.61 0.51 0.62
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