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Journal articles on the topic 'Cowpea (vigna unguiculata (l.)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Ehlers, J. D., and A. E. Hall. "Cowpea (Vigna unguiculata L. Walp.)." Field Crops Research 53, no. 1-3 (1997): 187–204. http://dx.doi.org/10.1016/s0378-4290(97)00031-2.

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2

Kongjaimun, Alisa, Akito Kaga, Norihiko Tomooka, et al. "An SSR-based linkage map of yardlong bean (Vigna unguiculata (L.) Walp. subsp. unguiculata Sesquipedalis Group) and QTL analysis of pod length." Genome 55, no. 2 (2012): 81–92. http://dx.doi.org/10.1139/g11-078.

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Yardlong bean (Vigna unguiculata (L.) Walp. subsp. unguiculata Sesquipedalis Group) (2n = 2x = 22) is one of the most important vegetable legumes of Asia. The objectives of this study were to develop a genetic linkage map of yardlong bean using SSR makers from related Vigna species and to identify QTLs for pod length. The map was constructed from 226 simple sequence repeat (SSR) markers from cowpea (Vigna unguiculata (L.) Walp. subsp. unguiculata Unguiculata Group), azuki bean (Vigna angularis (Willd.) Ohwi & Ohashi), and mungbean (Vigna radiata (L.) Wilczek) in a BC1F1 ((JP81610 × TVnu457

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3

Ogunkanmi, Adebayo, Oluwatoyin Ogundipe, Luky Omoigui, Adebola Odeseye, and Christian Fatokun. "Morphological and SSR marker characterization of wild and cultivated cowpeas (Vigna unguiculata L. Walp)." Journal of Agricultural Sciences, Belgrade 64, no. 4 (2019): 367–80. http://dx.doi.org/10.2298/jas1904367o.

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Three hundred and ninety accessions comprising 260 cultivated and 130 wild cowpea accessions were evaluated phenotypically using 27 cowpea descriptors. Morphological evaluation of some qualitative traits revealed 11.92% and 29.23% presence of pigmentation on the stem, 1.53% and 20.76% presence of stripes on the pod, and 0% and 20% presence of hairiness on the plant of cultivated and wild cowpeas respectively. As for the molecular analysis, sixteen SSR primers were employed for genotyping 48 accessions from both wild and cultivated cowpeas. The data generated a dendrogram with three clusters, t

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4

Ha, Tae Joung, Myoung-Hee Lee, Yu Na Jeong, et al. "Anthocyanins in cowpea [Vigna unguiculata (L.) Walp. ssp. unguiculata]." Food Science and Biotechnology 19, no. 3 (2010): 821–26. http://dx.doi.org/10.1007/s10068-010-0115-x.

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5

Ugale, PN, MP Wankhade, and JD Deshmukh. "Correlation studies in cowpea (Vigna unguiculata L.)." International Journal of Chemical Studies 8, no. 6 (2020): 743–46. http://dx.doi.org/10.22271/chemi.2020.v8.i6k.10857.

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6

Vaillancourt, R. E., and N. F. Weeden. "Lack of isozyme similarity between Vigna unguiculata and other species of subgenus Vigna (Leguminosae)." Canadian Journal of Botany 71, no. 4 (1993): 586–91. http://dx.doi.org/10.1139/b93-066.

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The cowpea (Vigna unguiculata (L.) Walp.) is an important crop of tropical Africa, Asia, and South America. However, the relationship between the cowpea and other species of subg. Vigna is relatively unknown. The objective of this study was to assess the genetic distance among species of subg. Vigna using isozymes. Twenty-four populations of the cowpea species and 39 populations from 10 other species (at least one species per section of subgenus Vigna) were sampled. Nei's genetic distance was calculated from allelic frequencies at 26 isozyme loci. UPGMA cluster analysis was performed. The rang

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7

Pal, A. K., B. Singh, and A. N. Maurya. "Inbreeding depression in cowpea (Vigna unguiculata (L.) Walp.)." Journal of Applied Horticulture 05, no. 02 (2003): 105–7. http://dx.doi.org/10.37855/jah.2003.v05i02.25.

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8

CHANDRAKAR, RUPESH, ANNU VERMA, J. SINGH, and N. MEHTA. "Genetic divergence in vegetable cowpea (Vigna unguiculata L.)." ASIAN JOURNAL OF HORTICULTURE 11, no. 2 (2016): 323–28. http://dx.doi.org/10.15740/has/tajh/11.2/323-328.

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Lonardi, Stefano, María Muñoz‐Amatriaín, Qihua Liang, et al. "The genome of cowpea (Vigna unguiculata[L.] Walp.)." Plant Journal 98, no. 5 (2019): 767–82. http://dx.doi.org/10.1111/tpj.14349.

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10

Badhe, P. L., D. M. Raut, N. M. Magar, D. N. Borole, and V. Y. Pawar. "Diallel analysis in Cowpea (Vigna unguiculata (L.)Walp.)." Electronic Journal of Plant Breeding 7, no. 2 (2016): 291. http://dx.doi.org/10.5958/0975-928x.2016.00037.5.

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11

Spriggs, Andrew, Steven T. Henderson, Melanie L. Hand, Susan D. Johnson, Jennifer M. Taylor, and Anna Koltunow. "Assembled genomic and tissue-specific transcriptomic data resources for two genetically distinct lines of Cowpea (Vigna unguiculata (L.) Walp)." Gates Open Research 2 (February 9, 2018): 7. http://dx.doi.org/10.12688/gatesopenres.12777.1.

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Cowpea (Vigna unguiculata (L.) Walp) is an important legume crop for food security in areas of low-input and smallholder farming throughout Africa and Asia. Genetic improvements are required to increase yield and resilience to biotic and abiotic stress and to enhance cowpea crop performance. An integrated cowpea genomic and gene expression data resource has the potential to greatly accelerate breeding and the delivery of novel genetic traits for cowpea. Extensive genomic resources for cowpea have been absent from the public domain; however, a recent early release reference genome for IT97K-499

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Spriggs, Andrew, Steven T. Henderson, Melanie L. Hand, Susan D. Johnson, Jennifer M. Taylor, and Anna Koltunow. "Assembled genomic and tissue-specific transcriptomic data resources for two genetically distinct lines of Cowpea (Vigna unguiculata (L.) Walp)." Gates Open Research 2 (June 18, 2018): 7. http://dx.doi.org/10.12688/gatesopenres.12777.2.

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Cowpea (Vigna unguiculata (L.) Walp) is an important legume crop for food security in areas of low-input and smallholder farming throughout Africa and Asia. Genetic improvements are required to increase yield and resilience to biotic and abiotic stress and to enhance cowpea crop performance. An integrated cowpea genomic and gene expression data resource has the potential to greatly accelerate breeding and the delivery of novel genetic traits for cowpea. Extensive genomic resources for cowpea have been absent from the public domain; however, a recent early release reference genome for IT97K-499

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13

Absari, Eritria Ulina, and Kuswanto Kuswanto. "Response of Some Cowpea (Vigna unguiculata L.) Genotype to Salinity Stress." PLANTROPICA: Journal of Agricultural Science 4, no. 1 (2019): 57–67. http://dx.doi.org/10.21776/ub.jpt.2019.004.1.7.

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Susrama, I. Gede Ketut, and I. Gede Putu Wirawan. "IN VIVO MULTISTEP MUTAGENESIS INDUCTION USING COLCHICINE ON COWPEA MUTANT 1 (Vigna unguiculata L. Walp)." International Journal of Biosciences and Biotechnology 5, no. 2 (2018): 118. http://dx.doi.org/10.24843/ijbb.2018.v05.i02.p04.

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In the previous research, we obtained three catagories of M1 mutant cowpea namely 1) purple pod mutant cowpea, 2) green pod mutant cowpea which has three pods in a stalk, and 3) green pod mutant cowpea which has two pods in a stalk. All those three catagories of M1 mutant cowpeas were treated again with colchicine in a multistep mutagenesis proses in vivo. Then, we found changes in number of leaflet in a petiole to 4 leaflets (quadrifoliate) and to five leaflets in a petiole (pentafoliate). These changes are indications that beside as a chromosome multipying alkaloid, colchicine causes other g

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15

Nkomo, Gabriel V., Moosa M. Sedibe, and Maletsema A. Mofokeng. "Production Constraints and Improvement Strategies of Cowpea (Vigna unguiculata L. Walp.) Genotypes for Drought Tolerance." International Journal of Agronomy 2021 (March 22, 2021): 1–9. http://dx.doi.org/10.1155/2021/5536417.

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Cowpea (Vigna unguiculata L. Walp. L) is an important leguminous crop largely grown by smallholder farmers in sub-Saharan Africa for food security and animal feed. The objective of this study was to review the production constraints and improvement strategies of cowpea genotypes for drought tolerance. Data were analysed through use of literature review from various sources. In sub-Saharan Africa, cowpeas are produced mainly from West Africa, which accounts for 60% of worldwide production. A lot of pests and diseases affect cowpeas, and this often results in total crop loss. Through continuous

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16

Nascente, Adriano Stephan, José Dambiro, and Clérico Constantino. "Effects of grain-producing cover crops on rice grain yield in Cabo Delgado, Mozambique." Revista Ceres 64, no. 6 (2017): 607–15. http://dx.doi.org/10.1590/0034-737x201764060007.

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ABSTRACT Besides providing benefits to the environment such as soil protection, release of nutrients, soil moisture maintenance, and weed control, cover crops can increase food production for grain production. The aim of this study was to evaluate the production of biomass and grain cover crops (and its respective effects on soil chemical and physical attributes), yield components, and grain yield of rice in Mozambique. The study was conducted in two sites located in the province of Cabo Delgado, in Mozambique. The experimental design was a randomized block in a 2 × 6 factorial, with four repe

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Sombié, Pierre, Moussa Compaoré, Ahmed Coulibaly, Jeremy Ouédraogo, Jean-Baptiste Tignégré, and Martin Kiendrébéogo. "Antioxidant and Phytochemical Studies of 31 Cowpeas (Vigna unguiculata (L. Walp.)) Genotypes from Burkina Faso." Foods 7, no. 9 (2018): 143. http://dx.doi.org/10.3390/foods7090143.

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Antioxidant compounds of dietary plants have been widely studied because of their bioactive properties. The objective of this research study was to analyse the health enhancing attributes of 31 cowpeas varieties from Burkina Faso. Significant variations were observed in the phenolic content as well as the antioxidant and anti-lipid peroxidation activities amongst the cowpea varieties. Pearson correlation coefficient analysis showed that the ferric reducing ability (r = 0.954) and anti-lipid peroxidation (r = 0.616) were positively correlated with the total phenolic content. A significant relat

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Raut, D. M., A. B. Tamnar, S. V. Burungale, and P. L. Badhe. "Half Diallel Analysis in Cowpea [Vigna unguiculata (L.)Walp.]." International Journal of Current Microbiology and Applied Sciences 6, no. 7 (2017): 1807–19. http://dx.doi.org/10.20546/ijcmas.2017.607.218.

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19

Gerrano, Abe S., Patrick O. Adebola, Willem S. Jansen van Rensburg, and Sunette M. Laurie. "Genetic variability in cowpea (Vigna unguiculata(L.) Walp.) genotypes." South African Journal of Plant and Soil 32, no. 3 (2015): 165–74. http://dx.doi.org/10.1080/02571862.2015.1014435.

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20

Pasquet, R. S. "Allozyme diversity of cultivated cowpea Vigna unguiculata (L.) Walp." Theoretical and Applied Genetics 101, no. 1-2 (2000): 211–19. http://dx.doi.org/10.1007/s001220051471.

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21

Rai, Navreet Kaur, A. K. Sharma, A. K. Parihar, Sangeeta Pal, and Ravina Beniwal. "Genetic Divergence Analysis in Cowpea [Vigna unguiculata (L.) Walp.]." International Journal of Current Microbiology and Applied Sciences 9, no. 12 (2020): 2241–44. http://dx.doi.org/10.20546/ijcmas.2020.912.264.

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22

OSMAN, SAYED, and HASSAN SOLTAN. "CYTOLOGICAL CHARACTERIZATION OF SOME COWPEA (VIGNA UNGUICULATA L.) ACCESSIONS." Scientific Journal of Agricultural Sciences 3, no. 1 (2021): 131–36. http://dx.doi.org/10.21608/sjas.2021.67362.1075.

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23

Boe, A., E. K. Twidwell, and K. D. Rephart. "Growth and forage yield of cowpea and mungbean in the northern Great Plains." Canadian Journal of Plant Science 71, no. 3 (1991): 709–15. http://dx.doi.org/10.4141/cjps91-104.

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Cowpea [Vigna unguiculata (L.) Walp.] and mungbean [Vigna radiata (L.) Wilczek] are summer-annual legumes which have potential as forages in the northern Great Plains region of the USA during late summer when cool-season grass pastures decline in productivity. The objective of this study was to evaluate forage yield and growth response of these species when grown under different row spacings and planting rates. Victor cowpea and Berken mungbean were planted at 500 000 pure live seeds (PLS) ha−1 in row spacings of 25, 50, and 75 cm at two South Dakota locations in 1987. In 1988 the two species

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24

Gnankambary, Karidiatou, Nerbéwendé Sawadogo, Zakaria Diéni, et al. "Assessment of Cowpea (Vigna unguiculata (L.) Walp.) Mutant Lines for Drought Tolerance." International Journal of Agronomy 2020 (October 10, 2020): 1–9. http://dx.doi.org/10.1155/2020/8823498.

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Cowpea provides the cheapest source of protein with an average range of protein content of 23–30%. However, cowpea growth, development, and yield are greatly affected by drought during flowering and pod filling in the sub-Sahelian areas. The best way to cope with this situation is to develop drought-tolerant cowpea varieties. The objective of this study was therefore to evaluate cowpea lines developed through mutagenesis using gamma radiation to assess their reaction under optimal and water-stressed conditions. The response of ten mutants-irradiated Moussa local was then evaluated in pots arra

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25

Fadillah, Resti, Heni Purnamawati, and Supijatno. "Produksi Kacang Tunggak (Vigna unguiculata [L.] Walp) dengan Input Pupuk Rendah." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 48, no. 1 (2020): 44–51. http://dx.doi.org/10.24831/jai.v48i1.27597.

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Cowpea is prospective as a substitute for soybeans, as raw material for tempeh. In this study, low inputs of cowpea production is proposed. This study aimed to determine the effect of manure and nitrogen fertilizer on the growth and production of cowpea. The study was conducted at the Cikabayan Experimental Station, IPB, Bogor, Indonesia, from November 2018 to March 2019, using a split-plot design. As the main plot was goat manure rates consisted of 0, 2.5, and 5 tons ha-1. The subplots consisted of four rates of nitrogen, namely 0, 15, 30, and 45 kg N ha-1. The results showed that the applica

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26

Ortiz, Rodomiro. "Cowpeas from Nigeria: A Silent Food Revolution." Outlook on Agriculture 27, no. 2 (1998): 125–28. http://dx.doi.org/10.1177/003072709802700210.

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Cowpeas ( Vigna unguiculata (L.) Walp.) are an important native African legume crop, whose seeds are sold in local urban and rural markets. West Africa is the main centre of diversity for cowpeas. Nigeria is the world's largest producer and second in acreage. The production trend shows a significant improvement of cowpea cultivation in this country from 1961 to 1995. In this period, Nigerian cowpea production increased by 441% according to available statistics of the United Nations Food and Agriculture Organization (FAO). This paper discusses the evolution of cowpea production from the early 1

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Zhu, Y. F., J. Hu, Y. Zhang, Y. J. Guan, X. X. Huang, and S. J. Zhu. "Transferability of SSR markers derived from cowpea (Vigna unguiculata L. Walp.) in variety identification." Seed Science and Technology 38, no. 3 (2010): 730–40. http://dx.doi.org/10.15258/sst.2010.38.3.20.

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28

Ravelombola, Waltram Second, Ainong Shi, Yuejin Weng, et al. "Evaluation of Salt Tolerance at Germination Stage in Cowpea [Vigna unguiculata (L.) Walp]." HortScience 52, no. 9 (2017): 1168–76. http://dx.doi.org/10.21273/hortsci12195-17.

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Cowpea is a leguminous and versatile crop which provides nutritional food for human consumption. However, salinity unfavorably reduces cowpea seed germination, thus significantly decreasing cowpea production. Little has been done for evaluating and developing salt-tolerant cowpea genotypes at germination stage. The objectives of this research were to evaluate the response of cowpea genotypes to salinity stress through seed germination rate and to select salt-tolerant cowpea genotypes. The seed germination rates under nonsalt condition and salinity stress (150 mm NaCl) were evaluated in 151 cow

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29

Oladejo, A. S., A. O. Bolaji, I. O. Obisesan, and O. G. Omitogun. "SDS-Page characterization of some elite cowpea (Vigna unguiculata L. Walp) varieties." Nigerian Journal of Biotechnology 36, no. 2 (2020): 45–51. http://dx.doi.org/10.4314/njb.v36i2.6.

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The shortcomings of genotype x environment interaction necessitated the use of molecular methods in characterizing many plant species and in determining their phylogenetic relationships. In this study, some selected cowpea lines (27 varieties) from Obafemi Awolowo University, Ile – Ife, the Institute of Agricultural Research (IAR), Samaru, Kaduna and Genetic Resource Centre, IITA, Ibadan were characterized using sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) profiling. The protein banding profiles of the 27 cowpea varieties were scored and subjected to cluster analysis u

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30

Fatokun, Christian A., Ousmane Boukar, and Satoru Muranaka. "Evaluation of cowpea (Vigna unguiculata (L.) Walp.) germplasm lines for tolerance to drought." Plant Genetic Resources 10, no. 3 (2012): 171–76. http://dx.doi.org/10.1017/s1479262112000214.

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Cowpea is an important grain legume crop in sub-Saharan Africa (SSA) where, on a worldwide basis, the bulk is produced and consumed. The dry savanna area of SSA is where cowpea is mostly grown under rain-fed conditions. The crop is therefore prone to drought which may occur early, mid and/or late in the cropping season. Compared with many other crops, cowpea is drought tolerant, even though drought is still a major constraint limiting its productivity in SSA. Increasing the level of drought tolerance in existing cowpea varieties grown by farmers would enable them to obtain more and stable yiel

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31

Webber III, Charles L., Paul M. White Jr., Caleb Dalley, Eric C. Petrie, Ryan P. Viator, and James W. Shrefler. "Kenaf (Hibiscus cannabinus) and Cowpea (Vigna unguiculata) as Sugarcane Cover Crops." Journal of Agricultural Science 8, no. 8 (2016): 13. http://dx.doi.org/10.5539/jas.v8n8p13.

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<p>A Louisiana sugarcane field is typically replanted every four years due to declining yields, and, although, it is a costly process, it is both necessary and an opportunity to maximize the financial return during the next four year cropping cycle. Fallow planting systems (FPS) during the fallow period prior to replanting sugarcane have the potential to influence not only the following sugarcane crop, but the economics of the production system as a whole. A 2 year experiment was conducted at the USDA, ARS, Sugarcane Research Unit at Houma, LA to determine the impact of unique FPS on sug

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32

Cerdeira, Antonio L., A. Wayne Cole, and Dawn S. Luthe. "Cowpea (Vigna unguiculata) Seed Protein Response to Glyphosate." Weed Science 33, no. 1 (1985): 1–6. http://dx.doi.org/10.1017/s0043174500083843.

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Electrophoretic analysis of storage protein accumulation in developing cowpea [Vigna unguiculata(L.) Walp. ‘Mississippi Purple’] seed indicated that a large increase in protein content per seed occurred between 10 and 11 days after flowering (DAF). Polypeptides with molecular weights of 54, 49, and 41 kilodaltons (kD) accumulated first, and one with a molecular weight of 59 kD appeared 2 days later at 13 DAF. Treatment of plants with glyphosate [N-(phosphonomethyl)glycine] when pods were 7 and 10 DAF prevented accumulation of the major storage protein polypeptides. The accumulation of these po

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33

Sampers, Wim. "Cowpea (Vigna Unguiculata (L.) Walp.): Traditional and Improved Cropping Methods in Northern Nigeria." Afrika Focus 2, no. 1 (1986): 55–92. http://dx.doi.org/10.1163/2031356x-00201004.

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The present article describes the traditional cowpea cropping system in Dambatta, Kano State, Nigeria. Through a baseline survey it becomes clear that traditionally cowpea is mostly intercropped with cereals, that the importance of land preparation is marginal, that yields are low and that, in general, the technical level of the cowpea grower is low (low inputs of fertilizer and pesticide). In a second part some data are given about a project that introduced a new cowpea variety, T.V.X. – 3,236, and improved methods. It is shown that, although better yields are possible, the extension service

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Cicik Lestari, Sugeng Maryanto, and Riva Mustika Anugrah. "The Effect of Fermentation on The Nutrients of Processed Cowpea (Vigna unguiculata l. Walp)." JURNAL GIZI DAN KESEHATAN 13, no. 2 (2021): 161–67. http://dx.doi.org/10.35473/jgk.v13i2.237.

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Cowpea is a type of legume in Indonesia but utilization not optimal. Cowpea can be used as a basic of making tempeh. The purpose of the study is to know the effect of fermentation on the nutrients of processed cowpea. The design of the study was Pra Eks/imen Design with Completely Randomized Design in laboratory to test nutrients which were repeated 3 times. Data analysis used SPSS (Statistical Product Service Solution) application. The measurement of carbohydrate used anthron method, crude fiber used refluks method, total protein used kjeldhal method, and fat used soxhlet method. Nutrients of

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35

Lal, H., M. Rai, S. Karan, A. Verma, and D. Ram. "MULTIVARIATE HIERARCHICAL CLUSTERING OF COWPEA GERMPLASM (VIGNA UNGUICULATA (L.) WALP." Acta Horticulturae, no. 752 (September 2007): 413–16. http://dx.doi.org/10.17660/actahortic.2007.752.74.

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36

Raveendar, S., and S. Ignacimuth. "Improved Agrobacterium Mediated Transformation in Cowpea Vigna unguiculata L. Walp." Asian Journal of Plant Sciences 9, no. 5 (2010): 256–63. http://dx.doi.org/10.3923/ajps.2010.256.263.

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37

Patel, Pushkar Singh. "Correlation and Path analysis in Cowpea [ (Vigna unguiculata (L.) Walp.) ]." International Journal of Pure & Applied Bioscience 6, no. 5 (2018): 142–46. http://dx.doi.org/10.18782/2320-7051.6941.

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38

Khandait, Ramnarayan, P. K. Jain, Sunil Prajapati, and Pritibala Solanki. "Genetic Variability Studies of Diverse Cowpea (Vigna unguiculata L.) Genotypes." Journal of Functional And Environmental Botany 6, no. 2 (2016): 114. http://dx.doi.org/10.5958/2231-1750.2016.00017.2.

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39

Sarath, P. S., and T. Reshma. "Heterosis in Cowpea (Vigna unguiculata L. Walp) for Selected Traits." International Journal of Current Microbiology and Applied Sciences 6, no. 7 (2017): 522–26. http://dx.doi.org/10.20546/ijcmas.2017.607.063.

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40

Olapade, A. A., G. I. Okafor, A. U. Ozumba, and O. Olatunji. "Characterization of common Nigerian cowpea (Vigna unguiculata L. Walp) varieties." Journal of Food Engineering 55, no. 2 (2002): 101–5. http://dx.doi.org/10.1016/s0260-8774(02)00022-5.

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Fawole, I. "A Nonpetiolate Leaf Mutant in Cowpea, Vigna unguiculata (L.) Walp." Journal of Heredity 79, no. 6 (1988): 484–87. http://dx.doi.org/10.1093/oxfordjournals.jhered.a110559.

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42

Narwal, R. P., Vinod Kumar, and J. P. Singh. "Potassium and magnesium relationship in cowpea (Vigna unguiculata (L.) Walp.)." Plant and Soil 86, no. 1 (1985): 129–34. http://dx.doi.org/10.1007/bf02185032.

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43

Pasquet, Remy S., Yonas Feleke, and Paul Gepts. "Cowpea [Vigna unguiculata (L.) Walp.] maternal lineages, chloroplast captures, and wild cowpea evolution." Genetic Resources and Crop Evolution 68, no. 7 (2021): 2799–812. http://dx.doi.org/10.1007/s10722-021-01155-y.

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44

Agustin, Ika Ratna, Yunianta, and Teti Estiasih. "Characteristic of Cowpea (Vigna unguiculata) Protein Concentrates Protein Fraction on their Solubility." International Journal of ChemTech Research 13, no. 1 (2020): 30–37. http://dx.doi.org/10.20902/ijctr.2019.130104.

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Cowpea (Vigna unguiculata L. Walp) has a protein content of 22,9% to obtain the protein in high concentrations, is made as a concentrates or isolates protein. The aim of study to determine of chemical and functional properties of flour and cowpea protein concentrates on their solubility. The study uses a completely randomized design with precipitation method based on solvent, there is distilled water, 5% salt solution, alkaline solution (NaOH 0,5 N) and ethanol 70%. The result showed that cowpea protein fractions of albumin, globulin, glutelin and prolamin had different minimum and maximum sol

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Setyowati, Mamik, and Sutoro Sutoro. "Evaluasi Plasma Nutfah Kacang Tunggak (Vigna unguiculata L.) di Lahan Masam." Buletin Plasma Nutfah 16, no. 1 (2016): 44. http://dx.doi.org/10.21082/blpn.v16n1.2010.p44-48.

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<p>Plant genetic resources are as a source of genetic<br />variability and can be used to develop new varieties tolerant to<br />abiotic and biotic stress. Evaluation of cowpea germplasm to<br />abiotic stress, such as acidic soil has to be done to obtain<br />information of their tolerance. Cowpea germplasm collection<br />held in ICABIOGRAD was tested under acidic soil condition<br />in Jasinga, West Java and Bogor as control during March-June<br />2007. The criteria of tolerance to acidic soil was determined<br />when the grain yield of

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Rose, Judith L., and Brian A. Kahn. "USE OF COWPEA AS A GREEN MANURE TO REDUCE EXTERNAL NITROGEN INPUTS IN A FALL BROCCOLI CROP." HortScience 29, no. 7 (1994): 729d—729. http://dx.doi.org/10.21273/hortsci.29.7.729d.

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Cowpea [Vigna unguiculata (L.) Walp.] was grown as a green manure preceding a fall crop of broccoli [Brassica oleracea L. (Italica Group)] in 1992 and 1993. Urea was used to supply 0, 84, or 168 kg·ha-1 of supplemental nitrogen (N) to broccoli which followed cowpeas. Control broccoli plots were grown on fallowed ground and were supplied with 168 kg·ha-1 of N from urea. Cowpea incorporation added over 100 kg·ha-1 of N to the soil in both years. In 1992, treatments had no significant effect on yield of marketable broccoli heads, but average head weight was reduced in the absence of external N. I

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Kline, A. S., and E. J. Anderson. "First Report of Cowpea Aphid-Borne Mosaic Potyvirus from Cowpeas Grown Commercially in the U.S." Plant Disease 81, no. 8 (1997): 959. http://dx.doi.org/10.1094/pdis.1997.81.8.959c.

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Cowpea aphid-borne mosaic potyvirus (CABMV) is one of several seed-borne viruses known to limit cowpea (Vigna unguiculata (L.) Walp. subsp. unguiculata) production in Africa, Europe, and Asia, but CABMV has not been reported on commercially grown cowpeas in the United States (1). However, a sesame (Sesamum indicum L.)-infecting isolate of CABMV was recently characterized from plants growing near cowpea introduction plots in Georgia (2). In February 1997, we received samples of three seed lots of cowpea cv. Chinese Red that had been harvested in southern Texas during 1996. Approximately 28% of

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Ibitoye, D. O., and O. A. K. Olomide. "Vegetative Propagation of Cowpea [Vigna unguiculata (L.) Walp] for Increased Seed Production." Plant Breeding and Seed Science 74, no. 1 (2016): 93–97. http://dx.doi.org/10.1515/plass-2016-0018.

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Abstract Large number of parental plants are required during hybridization in order to generate enough progeny needed for evaluation. Cowpea is propagated through seeds, this increases the waiting period as the plant has to complete its juvenile phase before flowering. Asexual propagation approach was employed on cowpea using the vine cuttings of flowering plants. The vine cuttings were planted in sterilized top soil and they began flowering 14 days after cutting without adding fertilizer. Success was obtained using this method which increases the rate at which the hybrids needed for multi-loc

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Adigun, Joseph Aremu, Olusegun Raphael Adeyemi, Olumide Samuel Daramola, and Patience Mojibade Olorunmaiye. "Response of cowpea (Vigna unguiculata, L., Walp) to inter-row spacing and weed competition." Agricultura Tropica et Subtropica 53, no. 2 (2020): 73–79. http://dx.doi.org/10.2478/ats-2020-0008.

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AbstractWeed infestation is one of the major factors attributed for the poor yield of cowpea in Nigeria and other parts of sub-Sahara Africa (SSA). Field trials were therefore conducted to evaluate the effect of row spacing and different weeding levels on weed control, growth and yield of cowpea during the early and late wet seasons of 2009. In both seasons, the use of 60 cm row spacing resulted in significant (P < 0.05) reduction in weed density by 18 – 39% and weed biomass by 17 – 27% with subsequent increase in cowpea growth and grain yield than 75 and 90 cm row spacing. Cowpea grain yie

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PARARAJASINGHAM, S., and D. P. KNIEVEL. "NITROGENASE ACTIVITY OF COWPEA (Vigna unguiculata (L.) Walp.) DURING AND AFTER DROUGHT STRESS." Canadian Journal of Plant Science 70, no. 1 (1990): 163–71. http://dx.doi.org/10.4141/cjps90-018.

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Greenhouse experiments were conducted with the objectives (1) to investigate the nitrogenase activity (NA) of cowpea (Vigna unguiculata (L.) Walp.) root nodules during the development of and subsequent recovery from drought stress and (2) to determine whether the changes in NA during and following drought stress are related to nodule water potential. Nitrogenase activity of root nodules decreased by more than 80% within 6–8 d of withholding water and recovered 1 or 2 d after watering. Nodule water potential declined significantly from approximately −0.2 MPa to −0.48 MPa with 8 d of stress and

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