Screening Mung bean [Vigna radiata (L.) Wilczek] Genotypes for Drought Tolerance

Yoseph, Tekle; Mekbib, Firew; Amsalu, Berhanu; Tadele, Zerihun; Alemaw, Getinet (2020). Screening Mung bean [Vigna radiata (L.) Wilczek] Genotypes for Drought Tolerance. Ethiopian journal of agricultural sciences, 30(4), pp. 223-236. African Journals Online

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Drought is among the major constraints in mung bean production. The main goal of the current study was to investigate the response of 60 mung bean genotypes to two constrasting moisture regimes using diverse indices. The experiment was made at Jinka Agricultural Research Center using a 6 x 10 alpha lattice design replicated twice. Correlation analysis revealed that seed yield under stressed condition was positively correlated with stress tolerance index (STI), yield index (YI), harmonic mean (HM), mean relative performance (MRP), and relative drought index (RDI). PCA of the first two components accounted for 93.4% of the total variations where PC1 contributed for 64.39% of the variations. Based on cluster analysis, 60 mung bean genotypes used in the current study were grouped into five distinct clusters. In conclusion, this study showed that selection based on indices with seed yield under moisture-stress (Ys) and seed yield under non moisture-stress (Yp) conditions are useful for mung bean breeders. Therefore; stress tolerance index (STI), yield index (YI), harmonic mean (HM), geometric mean productivity (GMP) and mean relative performance (MRP) were found to be more suitable indices since these indices had the highest correlation with seed yield under both moisture-stressed and non moisture-stress conditions.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Development
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Tadele, Zerihun

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

2415-2382

Publisher:

African Journals Online

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

19 Nov 2020 16:31

Last Modified:

19 Nov 2020 16:31

Uncontrolled Keywords:

correlation, drought stress, drought tolerance indices, mung bean, variability

BORIS DOI:

10.7892/boris.148243

URI:

https://boris.unibe.ch/id/eprint/148243

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