Mungbean response to regulated deficit irrigation: a trade‐off between productivity and adaptability?

dc.contributor.authorPataczek, Lisa
dc.contributor.authorHakenberg, Tim
dc.contributor.authorHilger, Thomas
dc.contributor.authorNair, Ramakrishnan M.
dc.contributor.authorSchafleitner, Roland
dc.contributor.authorAsch, Folkard
dc.contributor.authorCadisch, Georg
dc.date.accessioned2025-09-22T13:50:48Z
dc.date.available2025-09-22T13:50:48Z
dc.date.issued2025
dc.date.updated2025-07-18T16:14:18Z
dc.description.abstractWater scarcity, elevated temperatures, as well as pests and diseases have been demonstrated to have a detrimental effect on the yield potential of mungbean ( Vigna radiata ). The cultivation of improved mungbean genotypes with regulated deficit irrigation (RDI), a water‐saving irrigation strategy, has been identified as a promising approach to enhance yield stability of the crop and ensure food security. Thus, the purpose of this study was to identify adaptation strategies and possible trade‐offs to drought of mungbean genotypes under deficit irrigation and the effect on yield by investigating in particular assimilate re‐allocation. Four genotypes (NM11, AVMU 1604, AVMU 1635, KPS2) were cultivated in a greenhouse under three treatments of RDI with depletion fractions as a percentage of total available soil water (TAW) of 0.45, 0.65, and 0.8, corresponding to a recommended irrigation schedule, moderate and severe water deficit, respectively. Samples were collected at the flowering and maturity stages, and the dry matter, dry matter partitioning, yield, harvest index, pod harvest index, water use efficiency, and carbon‐13 isotope discrimination to estimate transpiration efficiency were determined. The study found that productivity (i.e., grain yield) was not lowered as a trade‐off of adaptability to water deficit irrigation. The genotypes either did not respond to deficit irrigation (KPS2 and AVMU 1635) in terms of grain yield or exhibited increased remobilisation of assimilates, either from pod walls to seeds (NM11) or from vegetative plant parts to pods/seeds (AVMU 1604), thereby increasing yields by 38% and 52%, respectively, under water deficit. However, the genotype KPS2 demonstrated stable yields and the greatest harvest index/pod harvest index (36%/69%) across all RDI treatments, suggesting superior adaptability to fluctuating water availability and efficient resource allocation, providing a suitable choice for a range of environmental conditions.en
dc.description.sponsorshipFederal Ministry for Economic Cooperation and Development, Germany 10.13039/501100006456
dc.identifier.urihttps://doi.org/10.1111/jac.70070
dc.identifier.urihttps://hohpublica.uni-hohenheim.de/handle/123456789/17982
dc.language.isoeng
dc.rights.licensecc_by
dc.subjectAssimilate re‐allocation
dc.subjectCarbon‐13 discrimination
dc.subjectDrought adaptation
dc.subjectDrought stress
dc.subjectPod harvest index
dc.subjectTranspiration efficiency
dc.subjectVigna radiata
dc.subjectWater use efficiency
dc.subject.ddc630
dc.titleMungbean response to regulated deficit irrigation: a trade‐off between productivity and adaptability?en
dc.type.diniArticle
dcterms.bibliographicCitationJournal of agronomy and crop science, 211 (2025), 4, e70070. https://doi.org/10.1111/jac.70070. ISSN: 1439-037X
dcterms.bibliographicCitation.issn0931-2250
dcterms.bibliographicCitation.issn1439-037X
dcterms.bibliographicCitation.issue4
dcterms.bibliographicCitation.journaltitleJournal of agronomy and crop scienceen
dcterms.bibliographicCitation.pageend
dcterms.bibliographicCitation.pagestart
dcterms.bibliographicCitation.volume211
local.export.bibtex@article{Pataczek2025, url = {https://hohpublica.uni-hohenheim.de/handle/123456789/17982}, doi = {10.1111/jac.70070}, author = {Pataczek, Lisa and Hakenberg, Tim and Hilger, Thomas et al.}, title = {Mungbean response to regulated deficit irrigation: a trade‐off between productivity and adaptability?}, journal = {Journal of agronomy and crop science}, year = {2025}, volume = {211}, number = {4}, }
local.subject.sdg2
local.subject.sdg12
local.subject.sdg13
local.title.fullMungbean response to regulated deficit irrigation: a trade‐off between productivity and adaptability?

Files

Original bundle

Now showing 1 - 2 of 2
Loading...
Thumbnail Image
Name:
JAC_JAC70070.pdf
Size:
1.79 MB
Format:
Adobe Portable Document Format
No Thumbnail Available
Name:
jac70070-sup-0001-supinfo.docx
Size:
138.29 KB
Format:
Microsoft Word XML

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
7.85 KB
Format:
Item-specific license agreed to upon submission
Description: