Cultivation and Utilization of Bambara Groundnut (Vigna subterranea (L.) Verdc.), a Neglected Plant in Cameroon

In order to improve the production and commercialization of Bambara groundnut (Vigna subterranea (L) Verdc.) in Cameroon, an inventory on the use of available resources and peasant agronomic practices is a necessary prerequisite. Their understanding can help to establish efficient strategies to enhance this neglected crop. The objective of this work was therefore to identify the uses and the peasant knowledge on the Bambara groundnut in Cameroon. To this effect, a survey on the use of Bambara groundnut was carried out through interviews and direct discussions with farmers in the main production areas (Far North, Adamawa, Littoral (Coastal), Centre, North-West and West) of Cameroon. The survey revealed that in Cameroon, Bambara groundnut is mainly grown by women (74%). Monoculture (60%) is the most widely used cropping system; 40% of farmers associate it with other crops such as groundnuts, maize, sesame, okra, millet, sorghum, beans, egusi or pumpkin, and tubers. It is produced mainly on small land areas by the elderly. It is mainly cultivated by the poor peasants and without soil amendments. Several landraces are cultivated, the preferred varieties varying according to the production basins. Seed storage is mainly done with chemicals in closed containers. Weeds, lack of improved varieties, low yields, diseases and pests (insects, rodents) are the main production constraints identified. Results of this study could be exploited for the improvement and vulgarization of Bambara groundnut in Cameroon.

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SEED DETERIORATION PATTERN OF FOUR BAMBARA GROUNDNUT LANDRACES (Vigna subterraneasubterranean (L) Verdc) IN OPEN STORAGE SYSTEM

Informatika Pertanian ◽

10.21082/ip.v27n2.2018.p111-118 ◽

2018 ◽

Vol 27 (2) ◽

pp. 111

Author(s):

Happy Suryati Hamami ◽

Abdul Qadir ◽

Satriyas Ilyas ◽

Bambang Budhianto

Keyword(s):

Storage System ◽

Seed Storage ◽

Aluminum Foil ◽

Equation Model ◽

Bambara Groundnut ◽

Vigna Subterranea ◽

Seed Technology ◽

Seed Deterioration ◽

Open Storage ◽

Rate Of Decline

Bambara groundnut (Vigna subterranea (L.) Verdc) is a potential commodity to be developed in Indonesia, however, the production is done only once a year, therefore, it needs proper seed storage. The aim of this research was to study seed deterioration patterns of four bambara groundnut landraces stored in packages with different permeability in an open storage system for up to 6 months. This experiment was conducted from November 2015 to July 2016 at Seed Technology Laboratory, Department of Agronomy and Horticulture, IPB. Stages of experiment as follow: calculation of packaging permeability, seed storage, preparation and fitting data to regression equation.The packaging used in the study is aluminum foil, pp plastic and plastic sacks which have measured its permeability. The result showed that the seed deterioration of four bambara groundnut landraces in three packaging permeability has common sigmoidpattern with equation model: y = a / {1 + exp ((x + b) / c)}. The seed deterioration pattern based on SG and EC variables with the faster rate of decline occurred in Sumedang landrace packed in plastic sack (permeability = 1.4681 g/day m2 mm/Hg), thus having a shorter storability. The slower rate of decline occurred in Gresik landrace packed in aluminum foil (permeability = 0.098 g/day m2 mm/Hg), this means that it has a longer storability.

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Collection and ethnobotanical investigation of Lentil (Lens culinaris Medik.) in Algeria

Recent Research in Science and Technology ◽

10.25081/rrst.2018.10.3360 ◽

1970 ◽

pp. 01-06 ◽

Cited By ~ 1

Author(s):

D. Gaad, M. Laouar, A. Abdelguerfi

Keyword(s):

Lens Culinaris ◽

Cropping System ◽

Plant Part ◽

Grass Pea ◽

Ecological Zones ◽

Production Constraints ◽

Main Production ◽

Ethnobotanical Uses ◽

Insect Attack ◽

Agro Ecological Zones

This study aims to make an inventory of the existing diversity and establish a representative collection of the diversity of lentil crop in Algeria. Surveys and collection of lentil accessions were conducted in different agro-ecological zones of Algeria In 2011. From ten regions (Departments), fifteen villages were surveyed and 30 lentil accessions were collected. The present study was carried out to survey, identify and document the uses of lentil accessions collected. The information on ethnobotanical uses was collected through semi-structured questionnaires with local villagers, elders and those people having knowledge associated with the production and utilization of lentil (Lens culinaris).The study revealed that among the interviewed farmers, 64% were males while 36% were females. The commonest cropping system found was the cultivation of lentil alone (95.5% of producers) and associated with grass pea (2.5%). Regarding the plant part used, two main parts are used by the farmers interviewed: seeds and the aerial part after harvest as a straw to feed animals. Low yield (40% of responses), disease and insect attack (36%), and low rainfall (24%) were the main production constraints reported by the interviewees.

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Assessment of Genetic Diversity in Bambara Groundnut (Vigna subterranea) Landraces Based on Seed Storage Proteins Electrophoretic Pattern

Nigerian Journal of Biotechnology ◽

10.4314/njb.v38i1.4 ◽

2021 ◽

Vol 38 (1) ◽

pp. 40-47

Author(s):

N.M. Saminu ◽

B.G. Kurfi ◽

Y.Y. Muhammad

Keyword(s):

Storage Protein ◽

Storage Proteins ◽

Seed Storage Protein ◽

Protein Profile ◽

Seed Storage ◽

Seed Storage Proteins ◽

Bambara Groundnut ◽

Vigna Subterranea ◽

Research Attention ◽

Major Cluster

Bambara groundnut (Vigna subterranea) is a leguminous crop that is considered underutilized and has previously received little research attention. Variability in a number of physiological factors, including germination rate, widely affects its production. Seed storage protein, its fractions and protein profile of six Bambara groundnut local landraces were studied to assess their genetic relatedness. Total seed storage protein and its fractions were estimated by Bradford’s method. SDS-PAGE analysis was used to evaluate storage protein profile. The results showed significant differences (p<0.05) in protein contents among the landraces. The major seed storage proteins were found to be globulins (0.048 to 0.088mg/mL ), albumins (0.023 to 0.038mg/mL ), glutelins (0.007 to 0.013mg/mL ) and prolamins (0.002 to 0.004mg/mL ). Five peptide bands were detected with molecular weights corresponding to 97.4 kDa, 45 kDa, 29 kDa, 20.1 kDa and 18 kDa, respectively. Three peptide bands corresponding to 97.4 kDa, 45 kDa and 18 kDa were detected in all the landraces and two peptide bands between 29 kDa and 20.1 kDa were detected in five landraces. Dendrogram generated by UPGMA grouped the six landraces into one major cluster with two sub-clusters. The observed diversity in storage protein pattern of the landraces indicated their potential as materials for crop improvement.

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GENETIC DIVERSITY IN BAMBARA GROUNDNUT (Vigna subterranean) AS REVEALED BY MOLECULAR WEIGHTS OF THE SEEDS’ PROTEINS

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v30i2.35528 ◽

2018 ◽

Vol 30 (2) ◽

pp. 19-28

Author(s):

A. J. Oludare ◽

J. I. Kioko ◽

A. A. Akeem ◽

A. T. Olumide ◽

K. R. Justina ◽

...

Keyword(s):

Genetic Diversity ◽

Seed Proteins ◽

Electrophoretic Analysis ◽

Protein Characterization ◽

Bambara Groundnut ◽

Vigna Subterranea ◽

Phylogenetic Relatedness ◽

Molecular Weights ◽

National Centre ◽

Standard Marker

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

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The Effect of Loneliness on Death Anxiety in the Elderly During the COVID-19 Pandemic

OMEGA - Journal of Death and Dying ◽

10.1177/00302228211010587 ◽

2021 ◽

pp. 003022282110105

Author(s):

Türkan Akyol Guner ◽

Zeynep Erdogan ◽

Isa Demir

Keyword(s):

Death Anxiety ◽

The Elderly ◽

Average Score ◽

City Center ◽

Cross Sectional ◽

North West ◽

Significant Difference ◽

Scale Scores ◽

Education Status ◽

At Home

The aim of the study is to determine the effect on death anxiety of loneliness in the elderly during the COVID-19 pandemic. The population of this study that is descriptive and cross-sectional type consist of 354 elderly who meet the inclusion criteria from three different associations operating for charitable purposes in a city center located in north-west Turkey. The average score of Loneliness Scale of Elderly (LSE) of the elderly was determined as 11.39 ± 5.31, and the average score of Death Anxiety Scale (DAS) of the elderly was determined as 8.54 ± 4.82. According to these results, it was found that the elderly experienced acceptable levels of loneliness and moderate death anxiety. A statistically significant difference was found in the LSE and DAS scores of the elderly according to their age, marital status, education status, chronic illness status and living at home with relatives. In addition, during the COVID-19 epidemic, the scale scores of the elderly who have increased worries, who have a hobby at home, and who communicate with their relatives via social media/mobile phones were found to be statistically significant (p < 0.05).

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DISTRIBUTION AND RACE COMPOSITION OF DOWNY MILDEW (Plasmopara halstedii (Farl.) Berl. and de Toni) IN BULGARIA / EXTENSION Y RAZAS DEL MILDIU (Plasmopara halstedii (Farl.) Berl. y de Toni) EN BULGARIA / ÉTENDUE ET RACES DE LA ROUILLE (Plasmopara halstedii (Farl.) Berl. and de Toni) EN BULGARIE

Helia ◽

10.1515/helia.2000.23.33.25 ◽

2000 ◽

Vol 23 (33) ◽

pp. 25-32

Author(s):

P.S. Shindrova

Keyword(s):

Downy Mildew ◽

Resistance Gene ◽

The Other ◽

Plasmopara Halstedii ◽

North West ◽

North East ◽

Race 1 ◽

Race 2 ◽

Production Areas ◽

Number Of Authors

SUMMARY Downy mildew caused by the fungus Plasmopara halstedii is the main disease on sunflower in Bulgaria. In recent years a number of authors have reported the occurrence of new more virulent races of the pathogen. According to other authors these races demonstrate resistance to the fungicides used up to now. This fact is rather alarming and imposes the necessity of annual researches with the aim of following the changes in the downy mildew race variability. In the period 1995-1997 downy mildew isolates were collected from the following locations: Bourgas, Boyanovo, Karnobat, Ognyanovo, Selanovtsi, Kroushari, Lovech, Koubrat, Brashlyan, Sitovo, Tervel, Targovishte, IWS “Dobroudja” and Dobrich. The samples were assessed for virulence on a set of sunflower differential - lines under greenhouse conditions. The obtained results do not reveal a great race variability of downy mildew population in Bulgaria. In the period of study two races of the pathogen were identified: race 1 which infects the differential lines without genes for resistance to the pathogen. It is distributed in all sunflower production areas of the country. The other one is race 2. It is of limited distribution and has been registered in individual fields of north-east and north-west Bulgaria. It attacks the differential lines carrying the resistance gene Pl-1.

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A decade of road traffic fatalities among the elderly in north-West Iran

BMC Public Health ◽

10.1186/s12889-017-4976-2 ◽

2018 ◽

Vol 18 (1) ◽

Cited By ~ 7

Author(s):

Homayoun Sadeghi-Bazargani ◽

Bahram Samadirad ◽

Farnaz Moslemi

Keyword(s):

Road Traffic ◽

The Elderly ◽

Traffic Fatalities ◽

North West

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Genetic diversity in Bambara groundnut (Vigna subterranea L.) germplasm revealed by RAPD markers

Genome ◽

10.1139/g01-096 ◽

2001 ◽

Vol 44 (6) ◽

pp. 995-999 ◽

Cited By ~ 25

Author(s):

H I Amadou ◽

P J Bebeli ◽

P J Kaltsikes

Keyword(s):

Genetic Diversity ◽

Cluster Analysis ◽

Rapd Markers ◽

Random Amplified Polymorphic Dna ◽

Geographic Origin ◽

Bambara Groundnut ◽

International Institute ◽

Tropical Agriculture ◽

Vigna Subterranea ◽

Ibadan Nigeria

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.

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Utilization of bambara groundnut (Vigna subterranea (L.) Verdc.) for sustainable food and nutrition security in semi-arid regions of Zimbabwe

PLoS ONE ◽

10.1371/journal.pone.0204817 ◽

2018 ◽

Vol 13 (10) ◽

pp. e0204817 ◽

Cited By ~ 11

Author(s):

Juliet Mubaiwa ◽

Vincenzo Fogliano ◽

Cathrine Chidewe ◽

Evert Jan Bakker ◽

Anita R. Linnemann

Keyword(s):

Arid Regions ◽

Bambara Groundnut ◽

Vigna Subterranea ◽

Sustainable Food ◽

Food And Nutrition Security ◽

Nutrition Security ◽

Food And Nutrition ◽

Semi Arid

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Fusarium Consortium Populations Associated with Asparagus Crop in Spain and Their Role on Field Decline Syndrome

Journal of Fungi ◽

10.3390/jof6040336 ◽

2020 ◽

Vol 6 (4) ◽

pp. 336

Author(s):

Alexandri María Brizuela ◽

Eduardo De la Lastra ◽

José Ignacio Marín-Guirao ◽

Laura Gálvez ◽

Miguel de Cara-García ◽

...

Keyword(s):

Fusarium Oxysporum ◽

Fusarium Species ◽

Management Strategies ◽

Statistical Correlation ◽

Inoculum Density ◽

Average Temperature ◽

Species Complexes ◽

Main Production ◽

Production Areas ◽

Prevalent Species

Asparagus Decline Syndrome (ADS) is one of the main phytosanitary problems of asparagus crop worldwide. Diseased plants and soil samples from 41 fields from three main production areas of Spain were surveyed. Eight Fusarium species belonging to seven species complexes were identified in soils: F. oxysporum, F. proliferatum, F. redolens, F. solanisensu stricto, F. equiseti, F. culmorum, F. compactum and F. acuminatum. Fusarium oxysporum was the most prevalent species. Statistical correlation (R2 = 88%) was established between F. oxysporum inoculum density and the average temperature of the warmest month. A relationship was also established between three crop factors (average temperature, crop age and F. oxysporum inoculum density) and field disease indices. Significant differences were observed between the distribution of F. oxysporum propagules in white and green asparagus fields. Thirteen Fusarium species belonging to seven species complexes were identified from roots of diseased plants, being F. oxysporum the most prevalent. F. proliferatum, F. oxysporum and F. redolens showed pathogenicity to asparagus and were the main species associated to ADS. Fusarium oxysporum was the species with the highest genetic diversity displaying 14 sequence-based haplotypes with no geographic differentiation. This work contributes to understanding the Fusarium complex associated to ADS for developing accurate integrated disease management strategies.

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