Crops ›› 2022, Vol. 38 ›› Issue (4): 32-36.doi: 10.16035/j.issn.1001-7283.2022.04.005

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Correlation Analysis of Main Agronomic Characteristics of Different Alfalfa Varieties and Comparison of Hay Yield in Yellow River Irrigation Area of Ningxia

Wang Xiaochun1(), Zhu Dexin2, Yang Tianhui1, Wang Chuan1, Yang Weidi1, Gao Ting1(), Liang Xiaojun1()   

  1. 1Institute of Animal Sciences, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750000, Ningxia,China
    2Beijing Baiqingyuan Animal Husbandry Technology Development Co., Ltd., Beijing 100193, China
  • Received:2021-06-01 Revised:2021-10-29 Online:2022-08-15 Published:2022-08-22
  • Contact: Gao Ting,Liang Xiaojun E-mail:158851531@qq.com;ecogt9@163.com;1092295523@qq.com

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Abstract:

To explore the relationship between alfalfa agronomic traits and grass yield, and screen the high yield alfalfa varieties suitable for planting in irrigation area in Ningxia by comparing the grass yield. Correlation analysis of main agronomic traits and yield comparison of 20 alfalfa (Medicago sativa L.) varieties were carried out in the irrigation area of Yellow River in Ningxia from 2015 to 2018. The results revealed a significant positive correlation (P < 0.05) between plant height and hay yield of 0.554, the correlation coefficients between hay yield and the number of branches, stem diameter, leaves number, internode distance, leaf width, fresh-dry ratio, and leaf-stem ratio were 0.430, 0.264, 0.284, -0.064, 0.344, -0.110, and 0.153, respectively, indicating a low correlation (P > 0.05). In the irrigation area of the Yellow River in Ningxia, the hay yields of WL354, Kangsai, PGI427, Rugged, Challenger, Survivor and WL343 had been exceptional for four years, reaching more than

80 000kg/ha.

Key words: Alfalfa, Varieties, Agronomic traits, Hay yield, Ningxia, Yellow river irrigation area

Table 1

The test materials"

编号No. 品种Variety 原产地Origin 秋眠级Fall dormancy
1 甘农1号 中国 2.0
2 WL343 美国 3.9
3 中苜3号 中国 3.0
4 甘农7号 中国 –
5 阿迪娜 加拿大 4.5
6 甘农8号 中国 –
7 WL354 美国 4.0
8 勇士 加拿大 3.0
9 甘农6号 中国 3.0
10 大富翁 加拿大 4.1
11 骑士2 加拿大 2.4
12 岩石 美国 3.0
13 骑士T 加拿大 3.9
14 标靶 加拿大 4.0
15 骑士3 加拿大 –
16 甘农3号 中国 4.0
17 挑战者 加拿大 2.5
18 康赛 加拿大 3.0
19 雪豹 加拿大 3.0
20 大银河 法国 4.0

Table 2

Statistics of indexes of 20 alfalfa varieties"

指标
Index		 平均值
Mean		 标准差
σ		 极差
Range		 变异系数
CV (%)
株高（X1）Plant height (cm) 88.95 2.28 8.54 2.57
分枝数（X2）
Number of the branches		 11.01 0.71 2.85 6.44
茎粗（X3）
Diameter of stem (cm)		 0.38 0.01 0.05 3.14
叶片数（X4）
Number of the leaves		 244.84 21.52 77.54 8.79
节间距（X5）
The distance of internode (cm)		 9.14 0.69 2.53 7.54
叶宽（X6）
The width of leaf (cm)		 1.47 0.05 0.20 3.19
鲜干比（X7）Fresh/dry ratio 4.64 0.14 0.54 2.94
叶茎比（X8）
Stem/leaf ratio		 0.73 0.06 0.20 8.29
干草产量（X0）
Hay yield (kg/hm2)		 18 698.11 1781.89 5742.02 9.53

Table 3

The correlation coefficients between indexes of 20 alfalfa varieties"

指标Index X1 X2 X3 X4 X5 X6 X7 X8
X2 0.136
X3 0.078 0.199
X4 0.138 0.643** 0.176
X5 0.125 -0.544* 0.013 -0.683**
X6 0.379 0.272 0.090 -0.037 0.091
X7 0.109 0.311 -0.074 0.016 0.106 0.301
X8 -0.026 0.050 -0.123 0.083 -0.168 0.309 0.070
X0 0.554* 0.430 0.264 0.284 -0.064 0.344 -0.110 0.153

Table 4

Variance analysis on indexes of 20 alfalfa varieties (F-value)"

变异来源Source X1 X2 X3 X4 X5 X6 X7 X8 X0
年份Year 85.81** 65.75** 19.7** 175.33** 77.78** 78.96** 63.26** 50.36** 187.15**
品种Variety 1.35NS 1.48NS 1.08NS 2.754** 1.77NS 1.685NS 0.724NS 2.137* 3.749**
年份×品种Year×variety 12.87** 10.24** 3.62** 26.29** 12.14** 12.22** 9.25** 8.71** 28.76**

Fig.1

Comparison of hay yield in different years Different lowercase letters indicate significant difference at P < 0.05 level"

Table 5

Hay yield of 20 varieties of alfalfa in four years kg/hm2"

品种
Variety		 干草产量Hay yield 平均产量
Average yield		 4年总产量
Total yield of four years		 排序
Order
2015 2016 2017 2018
甘农1号Gannong No.1 8511.0f 24 158.5de 18 110.2g 18 965.3c 17 436.2f 69 744.9e 17
WL343 10 858.5de 26 600.1ab 22 417.8a 21 027.2b 20 225.9bc 80 903.6bc 7
中苜3号Zhongmu No.3 10 522.5de 18 823.5h 17 179.1h 16 770.9d 15 824.0g 63 296.0f 19
甘农7号Gannong No.7 9186.0e 19 039.9g 17 336.8h 16 498.8d 15 515.4g 62 061.5f 20
阿迪娜Adrenalin 11 539.5cd 22 628.3efg 20 984.7bc 24 322.5a 19 868.7bc 79 475.0bc 9
甘农8号Gannong No.8 11 512.5cd 23 724.2def 17 604.9i 18 208.2b 17 762.4f 71 049.7e 16
WL354 12 307.5bc 26 514.3ab 21 190.5cd 25 017.4a 21 257.4a 85 029.6a 1
勇士Warrior 10 323.0de 21 530.7fg 19 298.4e 22 515.0ab 18 416.8de 72 667.1d 14
甘农6号Gannong No.6 10 776.0de 26 014.9bc 19 018.4e 18 827.9b 18 659.3de 74 637.1d 13
骑士2 Knight 2 11 283.0cde 26 113.4bc 20 739.1ab 21 831.8b 19 991.8ab 79 967.2bc 8
岩石Rugged 13 266.0ab 25 952.7bc 21 462.9ab 23 552.2ab 21 058.4a 84 233.8ab 4
骑士T Knight T 11 622.0cd 23 050.8ef 21 088.9bc 23 457.8ab 19 804.9bc 79 219.4bc 10
标靶PGI427 12 283.5bc 27 011.7a 19 499.5ef 25 473.6a 21 067.1a 84 268.3ab 3
骑士3 Knight 3 11 467.5cde 22 224.8efg 21 080.3cd 23 343.5ab 19 529.0bc 78 116.0c 11
甘农3号Gannong No.3 10 714.5def 25 005.9cd 19 988.6ef 20 212.2b 18 980.3de 75 921.2d 12
挑战者Challenger 14 635.5a 21 396.2fg 20 819.4cd 25 290.3a 20 535.3ab 82 141.4bc 5
康赛Kangsai 13 810.5ab 26 757.3ab 21 035.6cd 22 798.2ab 21 100.4a 84 401.6ab 2
雪豹Snow leopard 6013.5g 24 144.2de 20 134.4e 23 346.8ab 18 409.7de 73 638.8d 15
大银河Survivor 14 198.6a 24 881.0cd 20 913.3cd 22 065.0ab 20 514.5ab 82 057.8bc 6
大富翁Monopoly 6855.7h 20 967.2fg 19 343.0f 21 653.0ab 17 204.7f 68 818.9e 18
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