Objective Mung bean is an important dual-purpose crop for both medicinal and food uses, widely cultivated worldwide. With ongoing optimization of agricultural production systems and evolving public health consciousness and dietary patterns, market demand for mung beans continues to rise. As one of China’s main production regions, Shanxi Province faces significant agricultural constraints due to limited natural precipitation and frequent drought conditions. The active identification of drought-tolerant mung bean germplasm resources holds strategic importance for promoting arid land utilization and agricultural industry development. Method In this study, 35 mung bean germplasm resources were evaluated under simulated drought stress using 10% polyethylene glycol 6000 (PEG6000) solution at seedling stage. Twelve morphological traits, including plant height, root length, fresh weight, dry weight,and root surface area, and 10 physiological indicators, including malondialdehyde, soluble protein, peroxidase, chlorophyll, and superoxide anion radicals, were measured. Drought tolerance coefficients were calculated for each strain,followed by correlation analysis. Comprehensive evaluation of drought tolerance were performed using integrated approaches including membership function analysis, principal component analysis, and hierarchical cluster analysis. Result Based on established drought tolerance classification criteria and comprehensive evaluation, the 35 mung bean strains were categorized into five distinct groups: highly drought-tolerant (one strain:529), drought-tolerant (9 strains: 311, 360, 368, 386, 500, 307, 751, 92 and 940), moderately drought-tolerant (14 strains), drought-sensitive (7 strains), and highly drought-sensitive (4 strains). Conclusion This study successfully identified one highly drought-tolerant and nine drought-tolerant mung bean germplasm resources from the 35 evaluated. These drought-tolerant mung bean germplasm resources provided a robust theoretical basis for mung bean cultivation practices and industrial production, while supporting sustainable development of mung bean industry in arid areas and promoting efficient utilization of dryland resources in Shanxi Province.
LiN, HuoZ G, QianJ X, et al. Risk analysis and zoning of drought disaster in Shanxi[J]. Chinese Journal of Agricultural Resources and Regional Planning, 2021, 42(5): 100-107.
ZhaoX Y, ZhangZ Y, ZhuH J, et al. Analysis of drought resistance and morphological index of the whole growth of mung bean[J]. Acta Agriculturae Boreali-Sinica, 2017, 32(S1): 180-184.
HeY, GuX T, FengL Q, et al. Screening and evaluation of drought resistance index for maize hybrids during seedling and germination stages[J]. Journal of Agricultural Science and Technology, 2024, 26(10): 30-40.
[11]
陈晨. OsWRKY95调控水稻抗旱性的功能研究[D]. 长春:吉林大学,2024.
[12]
ChenC. Study on the function of OsWRKY95 in regulating drought resistance of rice[D]. Changchun: Jilin University,2024.
WangJ C, MengY X, XuX L, et al. Identification and assessment on drought-resistance of Hordeum vulgare L.at seedling stage[J]. Agricultural Research in the Arid Areas,2013,31(4): 135-143.
XuN, WangM H, BaoS Y, et al. Identification of drought tolerance of 18 mungbean germplasm resources at seedling stage[J]. Journal of Jilin Agricultural Sciences,2015,40(6): 17-20.
[17]
JiangW, WuZ G, WangT, et al. Physiological and transcriptomic analyses of cadmium stress response in Dendrobium officinale seedling[J]. Plant Physiology and Biochemistry, 2020, 148: 152-165.
DuanY Z, ZhangX, KangF R, et al.Evaluation and selection of drought resistance of mung bean(Vigna radiate L.)[J]. Agricultural Research in the Arid Areas, 2014, 32(6): 256-261.
[20]
ComasL H, BeckerS R, CruzV M V, et al. Root traits contributing to plant productivity under drought[J]. Frontiers in Plant Science, 2013, 4: 442.
[21]
HasanuzzamanM, BhuyanM H M B, ZulfiqarF, et al. Reactive oxygen species and antioxidant defense in plants under abiotic stress: revisiting the crucial role of a universal defense regulator[J]. Antioxidants, 2020, 9(8): 681.
[22]
VilelaR D, BezerraB K L, FroehlichA, et al.Antioxidant system is essential to increase drought tolerance of sugarcane[J]. Annals of Applied Biology, 2017, 171(3): 451-463.
[23]
KyuK L, TaylorC M, DouglasC A, et al. Genetic diversity and candidate genes for transient waterlogging tolerance in mungbean at the germination and seedling stages[J]. Frontiers in Plant Science, 2024, 15: 1297096.
[24]
TardieuF, SimonneauT, MullerB. The physiological basis of drought tolerance in crop plants: a scenario-dependent probabilistic approach[J]. Annual Review of Plant Biology, 2018, 69: 733-759.
ZhangJ, WeiG, PengY M, et al. Drought resistance evaluation of eight strong gluten wheat varieties[J]. Journal of Triticeae Crops, 2024, 44(4): 442-452.
[27]
郭容秋. 绿豆品种资源农艺性状评价与萌发期耐旱性鉴定[D]. 长春:吉林农业大学,2021.
[28]
GuoR Q. Evaluation of agronomic traits of mungbean variety resources and identification of drought tolerance in germination period[D]. Changchun: Jilin Agricultural University, 2021.
YangY J, FengZ W, ZhaoH M, et al.Comparison of proline content and metabolic enzymes activities of foxtail millet under herbicide stress[J]. Journal of Shanxi Agricultural Sciences, 2019, 47(9): 1501-1504, 1550.
[33]
PolzinA, DannenbergL, SchneiderT, et al. Malondialdehyde assay in the evaluation of aspirin antiplatelet effects[J]. Pharmacology, 2019, 103(1-2): 23-29.
[34]
SeleimanM F, AliN, NungulaE Z, et al. Enhancing germination and seedling growth of barley using plasma-activated water (PAW) with neutralized pH[J]. Cogent Food & Agriculture, 2024, 10(1): 2390162.
XieB, RaoZ S, XiangJ Y, et al. Evaluation of uncertainty of the determination of soluble sugar in tobacco by anthrone colorimetry[J]. China Measurement & Test, 2015, 41(S1): 10-13.
LüC F, LiH X, JiaR R, et al. Improvement of experimental method for determination of plant peroxidase activity[J]. Light Industry Science and Technology, 2024, 40(2): 15-18.
[39]
HadwanM H, HusseinM J, MohammedR M, et al. An improved method for measuring catalase activity in biological samples[J]. Biology Methods & Protocols, 2024, 9(1): bpae015.
[40]
JiangJ M, ZhangN, SrivastavaA K, et al. Superoxide dismutase positively regulates Cu/Zn toxicity tolerance in Sorghum bicolor by interacting with Cu chaperone for superoxide dismutase[J]. Journal of Hazardous Materials, 2024, 480: 135828.
ZhangY T, GuanQ J, YuY, et al. Cloning of ascorbate peroxidase (APX2) gene from Amorpha fruticosa L. and functional validation of drought resistance[J]. Heilongjiang Agricultural Sciences, 2024(8): 51-59.
[43]
RohmanM M, AhmedI, MollaM R, et al. Evaluation of salt tolerant mungbean (Vigna radiata L.) genotypes on growth through bio-molecular approaches[J]. Bangladesh Journal of Agricultural Research, 2019, 44(3): 469-492.
[44]
MafakheriA, SiosemardehA, BahramnejadB, et al.Effect of drought stress on yield, proline and chlorophyll contents in three chickpea cultivars[J]. Australian Journal of Crop Science, 2010, 4(8): 580-585.
ZhouX C, HuH B, LiF, et al. Comprehensive evaluation of field drought resistance and selection of drought-resistant varieties of different genotypes of soybean[J]. Journal of Shanxi Agricultural Sciences, 2024, 52(4): 16-24.
[47]
TahirN A, RasulK S, LateefD D, et al. In vitro evaluation of Iraqi Kurdistan tomato accessions under drought stress conditions using polyethylene glycol-6000[J]. Life, 2024, 14(11): 1502.
XueX W, YangF, MuA K, et al. Identification and evaluation of drought tolerance for 86 milletgermplasms at mid to late growth stage in Inner Mongolia[J]. Agricultural Research in the Arid Areas, 2024, 42(5): 34-43.
HuangN Y, ZhuZ Z, LiuC Y, et al. Genetic diversity of mung bean germplasms with drought-tolerance at seed germination stage[J]. Fujian Journal of Agricultural Sciences, 2021, 36(3): 255-263.
[54]
AzeemA, MaiW X, AliR, et al. Growth prediction models and dynamics of three fodder crops under fresh and brackish water irrigation in dry-land regions[J]. Sustainable Environment, 2024, 10(1):2379145.
[55]
RajkhowaS, ZaheenA, HussainS Z, et al. Harnessing virtual insights: a computational study on the molecular characterization of a drought‐inducible RNA‐binding protein for enhancing drought tolerance in mungbean(Vigna radiata L.)[J]. ChemistrySelect, 2024, 9(36): e202403028.