Effect of Water Stress on Physiological Parameters of Bambara Groundnut (Vigna Subterranea (L.) Verdc.) Accessions

Abejide, D. R.; Falusi, O. A.; Adebola, Matthew Omoniyi; Gana, A. S.; Abubakar, A.; Dangana, Muhammad

doi:10.33628/jpd.2020.27.1.111

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…RWC was reported to have decreased by 21% – 24% with time after water deficit and increased by 13% – 17% after irrigation was resumed in bambara groundnut [ 39 ]. RWC was higher in well-watered plants than drought-stressed plants, although bambara groundnut accessions were still able to maintain high RWC despite the water stress [ 41 ]. Keyvan [ 35 ] reported wheat cultivars with high RWC under drought stress conditions to be resistant.…”

Section: Discussionmentioning

confidence: 99%

Deciphering the molecular basis for photosynthetic parameters in Bambara groundnut (Vigna subterranea L. Verdc) under drought stress

Gao

Chai

et al. 2023

BMC Plant Biol

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Background Assessment of segregating populations for their ability to withstand drought stress conditions is one of the best approaches to develop breeding lines and drought tolerant varieties. Bambara groundnut (Vigna subterranea L. Verdc.) is a leguminous crop, capable of growing in low-input agricultural systems in semi-arid areas. An F4 bi-parental segregating population obtained from S19-3 × DodR was developed to evaluate the effect of drought stress on photosynthetic parameters and identify QTLs associated with these traits under drought-stressed and well-watered conditions in a rainout shelter. Results Stomatal conductance (gs), photosynthesis rate (A), transpiration rate (E) and intracellular CO2 (Ci) were significantly reduced (p < 0.05) while water use efficiency (WUE) was significantly increased (p < 0.05) under drought-stressed conditions. A strong linear correlation was observed between gs, WUE, A, E and Ci under both water regimes. The variability between different water treatment, among individual lines and the interaction between lines and environment for photosynthetic parameters provides resources for superior lines selection and drought resistant variety improvement. Significant QTL for gs and FV/FM under well-watered conditions were mapped on LG5 and LG3, respectively, with more than 20% of the PVE, which could be considered as the major QTL to control these traits. Five clustered QTLs for photosynthetic traits under drought-stressed and well-watered conditions were mapped on LG5, LG6A, LG10 and LG11, respectively. Conclusions Significant and putative QTLs associated with photosynthetic parameters and the effect of drought stress on these traits have been revealed by QTL linkage mapping and field experiment in the F4 segregating population derived from S19-3 × DodR in bambara groundnut. The study provides fundamental knowledge of how photosynthetic traits response to drought stress and how genetic features control these traits under drought-stressed and well-watered conditions in bambara groundnut.

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Section: Discussionmentioning

confidence: 99%

Deciphering the molecular basis for photosynthetic parameters in Bambara groundnut (Vigna subterranea L. Verdc) under drought stress

Gao

Chai

et al. 2023

BMC Plant Biol

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“…2001]. It is an indigenous African leguminous crop belonging to the family Fabaceae and sub-family Faboideae [ABEJIDE & al. 2020].…”

Section: Introductionmentioning

confidence: 99%

Collection and Phenotypic Characterization of Some Nigerian Bambara Groundnut (Vigna Subterranea) Germplasm Using Seed Morphology

ABEJIDE,

FALUSI,

DAUDU

et al. 2023

jpd

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Bambara groundnut is an indigenous African legume with great potential to tackle food insecurity in Nigeria. A germplasm collection mission was carried out in collaboration with the Agricultural Developments Project (ADP) Extension officers of Nigeria between October and December 2014. Bambara groundnut seeds were collected from farmers in Kaduna, Niger, Kogi, Benue, Plateau, Adamawa, Nasarawa, Jigawa, Enugu and Federal Capital Territoy (FCT) Abuja. Some seeds were also collected from National Centre for Genetic Resources and Biotechnology (NACGRAB). A total of 45 original seed lots were collected which comprised of mixed seeds (different seed coat colours) and pure seeded accessions (comprising of one seed coat colour). A total of 24 distinct seed morphotypes were identified from the collections. The highest number of accessions were collected from NACGRAB (11) followed by Niger State (10) and the lowest from Benue, Jigawa and Adamawa States (2). Niger State also had the highest number of mixed seeds. The different seed phenotypes observed in the study are important for field production of true to type lines and can be exploited for the genetic improvement of bambara groundnut.

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Effect of Water Stress on Physiological Parameters of Bambara Groundnut (Vigna Subterranea (L.) Verdc.) Accessions

Cited by 2 publications

References 5 publications

Deciphering the molecular basis for photosynthetic parameters in Bambara groundnut (Vigna subterranea L. Verdc) under drought stress

Deciphering the molecular basis for photosynthetic parameters in Bambara groundnut (Vigna subterranea L. Verdc) under drought stress

Collection and Phenotypic Characterization of Some Nigerian Bambara Groundnut (Vigna Subterranea) Germplasm Using Seed Morphology

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