Crops ›› 2025, Vol. 41 ›› Issue (1): 66-75.doi: 10.16035/j.issn.1001-7283.2025.01.008

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Identification and Evaluation of Salt Tolerance of Mung Bean Germplasm Resources during Germination

Shi Huiying(), Fan Baojie, Liu Changyou, Wang Yan, Wang Shen, Zhang Zhixiao, Su Qiuzhu, Tian Jing()   

  1. Institute of Cereal and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences /Hebei Key Laboratory of Crop Genetics and Breeding, Shijiazhuang, 050035, Hebei, China
  • Received:2023-09-24 Revised:2024-03-26 Online:2025-02-15 Published:2025-02-12

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Abstract:

Salt tolerance during germination is an important factor restricting the application of mung bean germplasm in saline-alkali soil. The 68 salt tolerance mung bean germplasm resources was evaluated and screened with NaCl solution. The results showed that there were extremely significant differences in ten indexes between the treatment groups and the control group (P < 0.001), such as germination potential, germination rate and germ length. The salt tolerance coefficients of the ten indexes were correlated to different degrees (R2 ranged from -0.120 to 0.947). Principal component analysis converted ten individual indexes into three comprehensive indexes, and the tested materials were divided into three categories according to the strength of salt tolerance through comprehensive evaluation of salt tolerance and cluster analysis, of which 25 materials were high salt tolerance types, 20 materials were moderately salt tolerance types, and 23 materials were salt sensitive types. The salt tolerance evaluation model of mung bean at germination stage was established by step-to-step regression, and seven indexes including fresh weight, vigor index, germination potential, germination rate, radicle length and fresh weight of germ were selected, which can be used for rapid evaluation and prediction of salt tolerance of different mung bean germplasm resources.

Key words: Mung bean, Germination stage, Salt tolerance, Comprehensive evaluation

Table 1

Mung bean germplasm resources and their origins"

编号Code 材料Material 来源Origin 编号Code 材料Material 来源Origin
1 中绿30 中国农业科学院作物科学研究所 35 同绿10号 山西农业大学
2 中绿27 中国农业科学院作物科学研究所 36 桂绿2号 广西农业科学院水稻研究所
3 品绿2019-26-8-17 中国农业科学院作物科学研究所 37 冀绿13号 河北省农林科学院粮油作物研究所
4 品绿2020-25-10-0 中国农业科学院作物科学研究所 38 绿丰2号 黑龙江齐齐哈尔
5 冀绿0802反 河北省农林科学院粮油作物研究所 39 绿资17 黑龙江齐齐哈尔
6 冀绿抗50-8 河北省农林科学院粮油作物研究所 40 LZL173 辽宁
7 L3019 吉林省农业科学院 41 C001 内蒙古
8 HN267 吉林省农业科学院 42 C028 内蒙古
9 保绿201610-3 保定市农业科学院 43 C037 内蒙古
10 保绿201622-2 保定市农业科学院 44 C0072 河北邯郸
11 赤黄绿101 赤峰市农牧科学研究所 45 C0817 辽宁凌源
12 赤黑绿100 赤峰市农牧科学研究所 46 C1257 山东高密
13 皖科绿4号 安徽省农业科学院作物研究所 47 资源6 山西
14 皖科绿5号 安徽省农业科学院作物研究所 48 资源9 山西
15 WL1901 湖北省农业科学院 49 资源10 山西
16 WL1902 湖北省农业科学院 50 资源11 山西
17 宛绿10号 南阳市农业科学院 51 资源66 山西
18 宛绿11号 南阳市农业科学院 52 绿资5（白荚） 陕西榆林
19 172-017 黑龙江省农业科学院齐齐哈尔分院 53 C1467 河南驻马店
20 172-032 黑龙江省农业科学院齐齐哈尔分院 54 C1498 河南南阳
21 潍绿60032 青岛市农业科学研究院 55 C1509 河南周口
22 潍绿70535 青岛市农业科学研究院 56 C1518 河南周口
23 11L638 辽宁省农业科学院作物研究所 57 C0882 山东青岛
24 辽绿13号 辽宁省农业科学院作物研究所 58 C1009 山东泰安
25 鹦哥2号 张家口市农业科学院 59 C1052 山东泰安
26 晋绿豆11号 山西农业大学 60 C1084 山东济宁
27 晋绿豆12号 山西农业大学 61 AHYL2014-19 安徽
28 渝绿10号 重庆市农业科学院 62 LD127 湖北
29 渝绿11号 重庆市农业科学院 63 LD128 湖北
30 蒙科绿3号 内蒙古自治区农牧科学院 64 LD163 湖北
31 蒙科绿4号 内蒙古自治区农牧科学院 65 LD175 湖北
32 苏绿17-302 江苏省农业科学院蔬菜研究所 66 绿资5 重庆
33 苏绿17-208 江苏省农业科学院蔬菜研究所 67 绿资10 重庆
34 同绿9号 山西农业大学 68 绿豆1号 海南

Table 2

Descriptive statistics of each trait in 68 mung bean germplasm under control and salt stress conditions"

指标
Index		 对照处理Control treatment 盐胁迫处理Salt stress treatment
最大值
Max.		 最小值
Min.		 均值
Average		 标准差
Standard deviation		 变异系数
CV (%)		 最大值
Max.		 最小值
Min.		 均值
Average		 标准差
Standard deviation		 变异系数
CV (%)
GP (%) 100.00 61.11 95.77 7.48 7.81 100.00 13.33 72.56** 20.20 27.84
GR (%) 100.00 100.00 100.00 0.00 0.00 100.00 33.33 87.77** 14.37 16.37
GI 74.99 43.94 64.62 6.65 10.29 72.45 15.73 42.32** 14.31 33.81
VI 85.26 14.59 50.13 15.35 30.62 24.63 3.58 11.27** 5.47 48.53
GFW (g) 4.90 1.77 2.80 0.52 18.63 1.82 0.91 1.26** 0.19 15.00
RFW (g) 1.32 0.26 0.78 0.24 30.67 0.54 0.13 0.26** 0.08 30.34
FWC (g) 4.99 2.09 3.55 0.61 17.19 2.31 1.09 1.53** 0.23 15.22
GL (cm) 12.29 4.63 9.15 1.69 18.44 1.75 0.40 0.96** 0.32 33.54
RL (cm) 13.39 2.84 7.48 3.12 41.68 3.76 1.48 2.38** 0.52 21.95
RSR 0.50 0.12 0.28 0.08 27.41 0.34 0.10 0.21** 0.06 27.23

Table 3

Correlation analysis of saline tolerance indexes of mung bean traits under salt stress"

性状Trait RGP RGR RGI RVI RRFW RGFW RFWC RRL RGL
RGR 0.718**
RGI 0.826** 0.608**
RVI 0.712** 0.525** 0.781**
RRFW 0.608** 0.450** 0.592** 0.953**
RGFW 0.099 0.141 0.260* 0.202 0.172
RFWC 0.459** 0.385** 0.528** 0.699** 0.726** 0.735**
RRL 0.540** 0.356** 0.735** 0.778** 0.702** 0.267* 0.578**
RGL 0.560** 0.364** 0.529** 0.799** 0.799** -0.019 0.455** 0.724**
RRSR 0.581** 0.406** 0.526** 0.894** 0.947** -0.120 0.519** 0.633** 0.812**

Table 4

Principal component variance contribution rate of germination indexes of mung bean"

主成分
Principal
component		 特征根
Eigen
value		 贡献率
Contribution
rate (%)		 累计贡献率
Cumulative
contribution rate (%)
1 6.204 62.042 62.042
2 1.497 14.966 77.008
3 1.076 10.758 87.766
4 0.547 5.469 93.235
5 0.292 2.917 96.152
6 0.210 2.105 98.256
7 0.103 1.035 99.291
8 0.052 0.515 99.806
9 0.014 0.143 99.949
10 0.005 0.051 100.000

Table 5

Principal component load matrix of mung bean index"

主成分Principal component RGP RGR RGI RVI RRFW RGFW RFWC RRL RGL RRSR
1 0.797 0.626 0.825 0.971 0.923 0.266 0.746 0.825 0.816 0.852
2 -0.070 0.035 0.099 -0.072 -0.106 0.945 0.565 0.043 -0.319 -0.385
3 0.492 0.637 0.365 -0.108 -0.276 -0.106 -0.227 -0.149 -0.245 -0.250

Table 6

The comprehensive indicator values, indicator weight, U(Xj), D-value and comprehensive evaluation of different mung bean germplasm resources"

材料Material CI1 CI2 CI3 U(X1) U(X2) U(X3) D值D-value 综合评价Comprehensive evaluation 排名Ranking
1 1.294 0.369 0.832 0.241 0.741 0.9 0.407 中耐 37
2 1.238 0.345 0.727 0.212 0.713 0.772 0.366 中耐 45
3 1.49 0.194 0.68 0.343 0.541 0.715 0.422 中耐 35
4 1.546 0.183 0.66 0.372 0.528 0.691 0.438 中耐 32
5 1.146 0.392 0.625 0.164 0.766 0.649 0.326 敏感 50
6 0.907 0.403 0.549 0.04 0.78 0.556 0.23 敏感 64
7 1.07 0.313 0.817 0.125 0.677 0.882 0.312 敏感 53
8 0.83 0.337 0.091 0 0.704 0 0.12 敏感 68
9 1.047 0.32 0.329 0.113 0.685 0.289 0.232 敏感 63
10 1.297 0.28 0.512 0.242 0.638 0.512 0.343 敏感 48
11 1.32 0.33 0.678 0.254 0.696 0.713 0.386 中耐 42
12 1.451 0.22 0.61 0.322 0.57 0.631 0.402 中耐 39
13 1.222 0.295 0.692 0.203 0.656 0.73 0.345 敏感 47
14 1.2 0.33 0.553 0.192 0.696 0.562 0.323 敏感 51
15 1.09 0.307 0.487 0.135 0.669 0.481 0.269 敏感 59
16 1.17 0.188 0.463 0.177 0.534 0.452 0.271 敏感 58
17 1.247 0.322 0.803 0.217 0.687 0.866 0.376 中耐 43
18 1.358 0.338 0.583 0.274 0.706 0.598 0.388 中耐 41
19 1.569 -0.11 0.526 0.384 0.192 0.529 0.369 中耐 44
20 0.968 0.356 0.462 0.072 0.726 0.451 0.23 敏感 65
21 1.652 0.308 0.788 0.427 0.671 0.846 0.52 高耐 25
22 1.088 0.284 0.311 0.134 0.643 0.268 0.237 敏感 62
23 1.41 0.31 0.732 0.301 0.673 0.779 0.423 中耐 34
24 1.111 0.393 0.577 0.146 0.768 0.591 0.306 敏感 54
25 1.966 0.138 0.439 0.589 0.476 0.422 0.55 高耐 22
26 1.068 0.411 0.463 0.124 0.789 0.452 0.277 敏感 56
27 1.462 0.275 0.444 0.328 0.633 0.428 0.393 中耐 40
28 1.608 0.313 0.435 0.404 0.676 0.418 0.452 中耐 29
29 1.468 0.31 0.728 0.331 0.673 0.773 0.444 中耐 31
30 1.644 0.23 0.713 0.423 0.581 0.756 0.491 中耐 26
31 0.84 0.348 0.2 0.006 0.717 0.132 0.142 敏感 67
32 1.205 0.214 0.636 0.195 0.563 0.662 0.315 敏感 52
33 1.055 0.405 0.28 0.117 0.782 0.23 0.244 敏感 61
34 1.546 0.295 0.668 0.372 0.656 0.701 0.461 中耐 28
35 1.16 0.39 0.613 0.172 0.765 0.634 0.329 敏感 49
36 0.897 0.411 0.477 0.035 0.788 0.469 0.217 敏感 66
37 1.054 0.326 0.706 0.117 0.691 0.747 0.292 敏感 55
38 1.836 0.093 0.763 0.522 0.425 0.816 0.542 高耐 23
39 1.39 0.542 0.484 0.291 0.939 0.477 0.424 中耐 33
40 1.896 0.355 0.746 0.553 0.724 0.795 0.612 高耐 15
41 1.814 0.296 0.679 0.511 0.657 0.714 0.561 高耐 19
42 1.911 0.373 0.663 0.561 0.746 0.695 0.609 高耐 16
43 2.324 0.137 0.433 0.775 0.475 0.416 0.68 高耐 7
44 1.739 0.399 0.801 0.472 0.775 0.863 0.572 高耐 18
45 1.938 0.418 0.79 0.575 0.797 0.849 0.646 高耐 11
46 1.679 0.303 0.831 0.441 0.665 0.899 0.535 高耐 24
47 1.843 0.293 0.807 0.526 0.653 0.87 0.59 高耐 17
48 1.719 0.523 0.608 0.461 0.917 0.628 0.559 高耐 20
49 1.994 0.417 0.723 0.604 0.795 0.768 0.657 高耐 9
50 1.691 0.413 0.821 0.447 0.79 0.887 0.559 高耐 21
51 2.085 0.138 0.599 0.652 0.476 0.617 0.617 高耐 14
52 1.34 0.596 0.914 0.265 1 1 0.48 中耐 27
53 2.445 0.1 0.388 0.838 0.433 0.361 0.71 高耐 2
54 1.374 0.225 0.839 0.282 0.576 0.908 0.409 中耐 36
55 1.549 0.173 0.456 0.373 0.517 0.444 0.406 中耐 38
56 1.393 0.245 0.378 0.292 0.599 0.349 0.352 敏感 46
57 2.275 0.138 0.561 0.75 0.476 0.571 0.681 高耐 6
58 2.757 -0.163 0.215 1 0.132 0.151 0.748 高耐 1
59 2.635 -0.221 0.252 0.936 0.066 0.196 0.697 高耐 3
60 2.659 -0.278 0.163 0.949 0 0.088 0.682 高耐 5
61 2.307 0.091 0.395 0.766 0.423 0.369 0.659 高耐 8
62 2.214 0.011 0.506 0.718 0.331 0.504 0.626 高耐 12
63 2.273 0.003 0.573 0.749 0.322 0.586 0.656 高耐 10
64 2.392 -0.041 0.533 0.81 0.271 0.537 0.685 高耐 4
65 2.101 0.095 0.629 0.66 0.426 0.654 0.619 高耐 13
66 1.386 0.417 0.793 0.289 0.795 0.853 0.444 中耐 30
67 1.08 0.343 0.368 0.13 0.711 0.337 0.254 敏感 60
68 1.153 0.389 0.252 0.168 0.764 0.196 0.273 敏感 57
权重Weight 0.707 0.171 0.123

Fig.1

The dendrogram of clusters for 68 mung bean germplasm resources"

Table 7

Estimation accuracy analysis of regression equations of different mung bean germplasm resources"

材料
Material		 原始值
Original
value		 回归值
Regression
value		 差值
D-value		 估计精度
Estimation
accuracy (%)
1 0.407 0.412 0.005 99.517
2 0.366 0.367 0.001 99.869
3 0.422 0.419 -0.003 99.706
4 0.438 0.448 0.01 98.955
5 0.326 0.33 0.004 99.608
6 0.23 0.238 0.009 99.111
7 0.312 0.315 0.003 99.719
8 0.12 0.122 0.002 99.778
9 0.232 0.23 -0.002 99.82
10 0.343 0.34 -0.003 99.663
11 0.386 0.384 -0.002 99.819
12 0.402 0.398 -0.004 99.579
13 0.345 0.344 -0.002 99.847
14 0.323 0.323 0 99.983
15 0.269 0.27 0.002 99.846
16 0.271 0.269 -0.002 99.778
17 0.376 0.378 0.001 99.875
18 0.388 0.386 -0.001 99.868
19 0.369 0.371 0.002 99.754
20 0.23 0.235 0.005 99.485
21 0.52 0.52 0 99.965
22 0.237 0.235 -0.002 99.776
23 0.423 0.423 0 99.986
24 0.306 0.31 0.004 99.63
25 0.55 0.543 -0.007 99.317
26 0.277 0.278 0 99.963
27 0.393 0.387 -0.005 99.483
28 0.452 0.447 -0.005 99.539
29 0.444 0.445 0.002 99.848
30 0.491 0.489 -0.001 99.882
31 0.142 0.144 0.001 99.856
32 0.315 0.316 0.001 99.916
33 0.244 0.243 -0.001 99.857
34 0.461 0.459 -0.001 99.869
35 0.329 0.332 0.003 99.741
36 0.217 0.22 0.003 99.681
37 0.292 0.299 0.007 99.304
38 0.542 0.537 -0.004 99.572
39 0.424 0.422 -0.002 99.764
40 0.612 0.617 0.005 99.472
41 0.561 0.562 0.002 99.84
42 0.609 0.615 0.006 99.362
43 0.68 0.685 0.005 99.481
44 0.572 0.57 -0.001 99.88
45 0.646 0.647 0.001 99.893
46 0.535 0.535 -0.001 99.944
47 0.59 0.591 0.001 99.87
48 0.559 0.562 0.002 99.778
49 0.657 0.664 0.007 99.284
50 0.559 0.557 -0.002 99.793
51 0.617 0.619 0.002 99.818
52 0.48 0.472 -0.008 99.194
53 0.71 0.717 0.006 99.351
54 0.409 0.408 -0.001 99.932
55 0.406 0.406 0 99.992
56 0.352 0.347 -0.005 99.539
57 0.681 0.687 0.005 99.456
58 0.748 0.75 0.002 99.806
59 0.697 0.691 -0.006 99.356
60 0.682 0.676 -0.006 99.425
61 0.659 0.659 0 99.976
62 0.626 0.624 -0.002 99.776
63 0.656 0.656 0 99.977
64 0.685 0.687 0.002 99.782
65 0.619 0.619 -0.001 99.933
66 0.444 0.44 -0.004 99.596
67 0.254 0.254 0 99.978
68 0.273 0.272 -0.001 99.903
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