Insight into floral biology and ancillary characteristics of underutilized legume-Bambara groundnut [Vigna subterranea (L.) Verdc.]

Author(s):  
Kailash Chandra ◽  
R. Nandini ◽  
Gobu R. ◽  
Pranesh . ◽  
Chitti Bharat Kumar ◽  
...  

The present study floral biology and ancillary characteristics of Bambara groundnut used SB-42, Uniswa Red, S-165-A, S-193 and nine isolated gamma irradiated stabilized mutants of SB-42 for this investigation. Mutant 11 produced significantly maximum number of pods per plant (46.05 g/ plant) and seed yield per plant (28.96 g/plant), compared to control SB-42 (40.85 g/plant, 20.54 g/plant) respectively. Results obtained from flower biology studies were, Inflorescence- Simple Racemes, Flower- Bracteates, Zygomorphic, Hermaphrodite, Pedicellate, hypogynous, Calyx- sepal 5, gamosepalous, valvate aestivation, Corolla- petals 5, Polypetalous, Papilionaceous with a standard (vexilum/banner) petal, 2 wing petals(Alae) and 2 keel petals (Carinea), Androecium- stamens 10, Didelphous condition (9+1), Gynoecium- Ovary superior, Floral formula- Br Brl % K(5) C1+ 2 + (2) A 9+1 G (1).

2009 ◽  
Vol 46 (1) ◽  
pp. 99-110 ◽  
Author(s):  
N'. J. KOUASSI ◽  
I. A. ZORO BI

SUMMARYBambara groundnut (Vigna subterranea) is one of the most promising food legumes in Africa, due to its agronomic and nutritional potential. To take advantage of these attributes, several research programmes gathering agronomic and genetic data are being implemented throughout Africa. In this context, the response of yield and yield components to sowing density and seedbed type were tested in a three-year (2005, 2006 and 2007) field experiment using a bambara groundnut landrace with a semi-bunch growth habit. Three plant population densities: 13 900 plants ha−1, 62 500 plants ha−1 and 250 000 plants ha−1 were coupled with two seedbed types – raised and flat. A factorial trial using a split-plot design with three replicates was set up to analyse seed yield and plant biomass, as well as nine yield components. Sowing density influenced significantly (p < 0.05) seed yield (direct relationship) and most of the yield components (inverse relationship). The highest seed yields were observed on high-density plots (4.11 ± 1.05 ha−1). In contrast, seedbed type and year of experiment did not influence significantly the marketable yield and plant biomass (p > 0.05). This result has been attributed to the suitability of the amount and distribution of rainfall and temperature for the production of bambara groundnut at the target site. Based on the trend of yield response, cultivation of landraces of bambara groundnut characterized by a semi-bunch growth habit at high density on flat seedbeds was suggested in woodland savannas of Côte d'Ivoire to enhance seeds yield and reduce labour.


2021 ◽  
Vol 14 (1) ◽  
pp. 133-145
Author(s):  
Ismaila Muhammad ◽  
Mohd Y. Rafii ◽  
Muhamad Hazim Nazli ◽  
Shairul Izan Ramlee ◽  
Abdul Rahim Harun ◽  
...  

2017 ◽  
Vol 44 (3) ◽  
pp. 279
Author(s):  
Zikril Illahi ◽  
Ni Made Armini Wiendi ◽  
Dan Sudarsono

<em></em><em>ABSTRACT<br /><br />Bambara groundnut (Vigna subterranea L. Verdc.) is an important underutilized legume crop in Indonesia. The aim of this research is to study genetic diversity of bambara groundnut from Sukabumi and Sumedang, West Java, Indonesia. This study used 107 bambara groundnut accessions, which consisted of 57 accessions from Sukabumi and 50 accessions from Sumedang. We use five simple sequence repeat (SSR) to analyze the accessions. Totally nine alleles were detected, with a mean of 1.8 alleles per locus. Allelic and gene diversities were higher in Sumedang (1.8 alleles per locus and 0.119) than in Sukabumi population (1.4 alleles per locus and 0.020), respectively. We constructed a phylogenic tree by Neighbor-Joining analysis based on genetic distances (DA) and showed the tree divided bambara groundnut accessions into two broad groups according to the origin of samples (Sukabumi and Sumedang). Results from the phylogenic tree are in line with those from the population structure analysis.<br /> <br />Keywords: allele diversity, bambara groundnut, genetic distance, under utilized legume<br /><br /></em>


2019 ◽  
Vol 7 (2) ◽  
pp. 41-53
Author(s):  
Nwakuche C. Onwubiko ◽  
Michael I. Uguru ◽  
Grace O. Chimdi

Selection as the most practical and economical way of improving yield in an extreme autogamous crop was carried out in a Randomized Complete Block Design (RCBD) with three replications, with thirty three accessions of Bambara groundnut {Vigna subterranea (L.) Verdc}. Qualitative characters displayed a reasonable range of variation except for eye pattern, seed shape, pod texture and growth habit. The result on the analysis of variance (ANOVA) showed significant differences (p0.05) for all traits except for plant height, number of leaves per plant and seed length that were statistically insignificant. The principal component analysis result revealed that eight components (Eigen values ≥ 1) accounted for 78.36 % of the phenotypic variance, and quantitative traits revealed more phenotypic variation among the accessions Pearson’s correlation coefficient showed that petiole length (r= 0.64), vigour index (r= 0.49), seed length (r=0.53), canopy width (r=0.38), and internode length (0.58). had a high positive correlation with seed yield. Ranking of the accessions based on significantly strong correlated traits with yield using the rank summation index (RSI) method, and the selection of the best top 5% of the entries identified accessions TVSU 1688 and 1638 with RSI scores of 31 and 43 respectively as the best high yielding Bambara groundnut lines. Correspondingly, accessions TVSU 1688 and 1638 had the highest mean seed yield per plant of 1150.5g and 720.8g respectively in the 3-year field evaluation; which further confirmed the precision of the ranking and selection result. Invariably these two accessions were inherently high yielding Bambara groundnut accessions.


2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Md Mahmudul Hasan Khan ◽  
Mohd Y. Rafii ◽  
Shairul Izan Ramlee ◽  
Mashitah Jusoh ◽  
Md Al Mamun

AbstractIn a breeding program, studies of genotypic and phenotypic relationships among agricultural crop traits are useful to design, evaluate, and develop selection criteria for desirable traits. Using path coefficient analysis, the present study was executed to estimate the phenotypic, genotypic, and environmental correlation coefficients between yield and yield-related traits and to determine the direct and indirect effects of yield-related traits on yield per plant. A total of 30 genotypes of Vigna subterranea were studied under tropical conditions at two sites over two planting seasons (considered as four environments). The experiment at each site used a randomized complete block design with three replicates. Data were collected on vegetative and yield component attributes. Based on analysis of variance, pooled results showed that there were positive and highly significant differences (p ≤ 0.01) among the 30 genotypes for all attributes studied. Highly significant and positive strong correlation at phenotypic level was observed for dry seed weight (0.856), hundred seed weight (0.754), fresh pod weight (0.789), and total pod weight (0.626) with yield in kg per hectare, while moderate positive correlations were observed for harvest cut (0.360) and days to maturity (0.356). However, a perfect positive correlation was observed for the dry weight of pods with seed yield. In contrast, days to 50% flowering (− 0.350) showed a negative significant relationship with yield per hectare. The dried pod weight attribute (1.00) had a high positive direct effect on yield. Fresh pod weight had the greatest indirect effect on yield per hectare, followed by the number of total pods by dry pod weight. As a result, dry pod weight, hundred seed weight, number of total pods, and fresh pod weight could be used as selection criteria to improve the seed yield of Bambara groundnut (Vigna subterranea).


2018 ◽  
Vol 30 (2) ◽  
pp. 19-28
Author(s):  
A. J. Oludare ◽  
J. I. Kioko ◽  
A. A. Akeem ◽  
A. T. Olumide ◽  
K. R. Justina ◽  
...  

Nine accessions of Bambara groundnut (Vigna subterranea (L.) Verdc.,syn. Voandzeia subterranea (L.) Thouars ex DC.)  obtained from National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Oyo state, were assessed for their genetic and phylogenetic relatedness through electrophoretic analysis of the seed proteins. 0.2g of the seeds were weighed and macerated with mortar and pestle in 0.2M phosphate buffer containing 0.133M of acid (NaH2PO4) and 0.067 of base (Na2HPO4) at pH 6.5. Protein characterization with standard marker revealed that the seeds of the nine accessions contained proteins (B.S.A, Oval Albumin, Pepsinogen, Trypsinogen and Lysozyme) with molecular weights ranging from 66kda and above, 45 – 65 kDa, 44 – 33 kda, 32-24 kDa and 23-14 kDa, respectively. The student T-test revealed that accessions B, C, E, F, H and I have molecular weights not significantly different from one another (P<0.05) while samples A, D and G showed significantly different values (P>0.05). All the accessions had at least two proteins and two major bands in common. The study revealed intra-specific similarities and genetic diversity in protein contents among the nine accessions of Bambara groundnut (Vigna subterraranea (L.) Verdc.syn


Genome ◽  
2001 ◽  
Vol 44 (6) ◽  
pp. 995-999 ◽  
Author(s):  
H I Amadou ◽  
P J Bebeli ◽  
P J Kaltsikes

Random amplified polymorphic DNA (RAPD) markers were used to assess genetic diversity in Bambara groundnut (Vigna subterranea L.) germplasm using 25 African accessions from the collection in the International Institute for Tropical Agriculture, Ibadan, Nigeria. Fifty random decamer primers were screened to assess their ability to detect polymorphism in bambara; 17 of them were selected for this study. Considerable genetic diversity was found among the V. subterranea accessions studied. The relationships among the 25 accessions were studied by cluster analysis. The dendrograms showed two main groups of accessions mainly along the lines of their geographic origin. It is concluded that RAPD can be used for germplasm classification in bambara groundnut and hence for improving this crop.Key words: germplasm, PCR, RAPD, Vigna subterranea.


PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0204817 ◽  
Author(s):  
Juliet Mubaiwa ◽  
Vincenzo Fogliano ◽  
Cathrine Chidewe ◽  
Evert Jan Bakker ◽  
Anita R. Linnemann

Sign in / Sign up

Export Citation Format

Share Document