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Cowpea
The cowpea (''Vigna unguiculata'') is an annual herbaceous legume from the genus ''Vigna''. Its tolerance for sandy soil and low rainfall have made it an important crop in the semiarid regions across Africa and Asia. It requires very few inputs, as the plant's root nodules are able to fix atmospheric nitrogen, making it a valuable crop for resource-poor farmers and well-suited to intercropping with other crops. The whole plant is used as forage for animals, with its use as cattle feed likely responsible for its name. Four subspecies of cowpeas are recognised, of which three are cultivated. A high level of morphological diversity is found within the species with large variations in the size, shape, and structure of the plant. Cowpeas can be erect, semierect (trailing), or climbing. The crop is mainly grown for its seeds, which are high in protein, although the leaves and immature seed pods can also be consumed. Cowpeas were domesticated in Africa and are one of the oldest crops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callosobruchus Maculatus
''Callosobruchus maculatus'' is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle.Tran, B. M. D. and P. F. Credland. (1995)Consequences of inbreeding for the cowpea seed beetle, ''Callosobruchus maculatus'' (F.) (Coleoptera: Bruchidae).''Biological Journal of the Linnean Society'' 56 483-503. It is a member of the leaf beetle family, Chrysomelidae, and not a true weevil. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except Antarctica.Cowpea weevil (''Callosobruchus maculatus'' (Fabricius, 1775)). PaDIL. The beetle most likely originated in an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maruca Vitrata
''Maruca vitrata'' is a pantropical insect pest of leguminous crops like pigeon pea, cowpea, mung bean and soybean. Its common names include the maruca pod borer, bean pod borer, soybean pod borer, mung moth, and the legume pod borer. The species was first described by Johan Christian Fabricius in 1787. It can cause losses of 20–80% on the harvests of cowpeas. Its feeding sites on plants are flower buds, flowers and young pods. In some cases early instars feed on flower peduncles and young stems. Methods for control Biological Some parasitoids have been shown to serve as a biological control for ''Maruca vitrata''. Parasitoid wasps families include Braconidae and Ichneumonidae; some parasitoid flies in the Tachinidae are also natural enemies of the moth. ''M. vitrata'' prefers to lay its eggs on the flowering bodies of the cowpea plant. Efforts have been made to deter ''M. vitrata'' from reproducing on the plant ranging from pesticide Pesticides are substances th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vigna Unguiculata Varieties
''Vigna'' is a genus of plants in the legume family, Fabaceae, with a pantropical distribution.Aitawade, M. M., et al. (2012)Section ''Ceratotropis'' of subgenus ''Ceratotropis'' of ''Vigna'' (Leguminosae–Papilionoideae) in India with a new species from northern Western Ghats. ''Rheedea'' 22(1), 20-27. It includes some well-known cultivated species, including many types of beans. Some are former members of the genus '' Phaseolus''. According to ''Hortus Third'', ''Vigna'' differs from ''Phaseolus'' in biochemistry and pollen structure, and in details of the style and stipules. ''Vigna'' is also commonly confused with the genus '' Dolichos'', but the two differ in stigma structure. ''Vigna'' are herbs or occasionally subshrubs. The leaves are pinnate, divided into 3 leaflets. The inflorescence is a raceme of yellow, blue, or purple pea flowers. The fruit is a legume pod of varying shape containing seeds. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vigna
''Vigna'' is a genus of plants in the legume family, Fabaceae, with a pantropical distribution.Aitawade, M. M., et al. (2012)Section ''Ceratotropis'' of subgenus ''Ceratotropis'' of ''Vigna'' (Leguminosae–Papilionoideae) in India with a new species from northern Western Ghats. ''Rheedea'' 22(1), 20-27. It includes some well-known cultivated species, including many types of beans. Some are former members of the genus ''Phaseolus''. According to ''Hortus Third'', ''Vigna'' differs from ''Phaseolus'' in biochemistry and pollen structure, and in details of the style and stipules. ''Vigna'' is also commonly confused with the genus '' Dolichos'', but the two differ in stigma structure. ''Vigna'' are herbs or occasionally subshrubs. The leaves are pinnate, divided into 3 leaflets. The inflorescence is a raceme of yellow, blue, or purple pea flowers. The fruit is a legume pod of varying shape containing seeds. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protein (nutrient)
Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source. As a fuel, proteins provide as much energy density as carbohydrates: 4 kcal (17 kJ) per gram; in contrast, lipids provide 9 kcal (37 kJ) per gram. The most important aspect and defining characteristic of protein from a nutritional standpoint is its amino acid composition. Proteins are polymer chains made of amino acids linked together by peptide bonds. During human digestion, proteins are broken down in the stomach to smaller polypeptide chains via hydrochloric acid and protease actions. This is crucial for the absorption of the essential amino acids that cannot be biosynthesized by the body. There are nine essential amino acids which humans must obtain from their diet in order to prevent protein–energy malnutrition and resulting death. They are phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Root Nodule
Root nodules are found on the roots of plants, primarily legumes, that form a symbiosis with nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a symbiotic relationship with a host-specific strain of bacteria known as rhizobia. This process has evolved multiple times within the legumes, as well as in other species found within the Rosid clade. Legume crops include beans, peas, and soybeans. Within legume root nodules, nitrogen gas (N2) from the atmosphere is converted into ammonia (NH3), which is then assimilated into amino acids (the building blocks of proteins), nucleotides (the building blocks of DNA and RNA as well as the important energy molecule ATP), and other cellular constituents such as vitamins, flavones, and hormones. Their ability to fix gaseous nitrogen makes legumes an ideal agricultural organism as their requirement for nitrogen fertilizer is reduced. Indeed, high nitrogen content blocks nodule development as there is no benefit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nigeria
Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea to the south in the Atlantic Ocean. It covers an area of , and with a population of over 225 million, it is the most populous country in Africa, and the world's sixth-most populous country. Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west. Nigeria is a federal republic comprising of 36 states and the Federal Capital Territory, where the capital, Abuja, is located. The largest city in Nigeria is Lagos, one of the largest metropolitan areas in the world and the second-largest in Africa. Nigeria has been home to several indigenous pre-colonial states and kingdoms since the second millennium BC, with the Nok civilization in the 15th century BC, marking the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niger
) , official_languages = , languages_type = National languagesRépublique du Niger, "Loi n° 2001-037 du 31 décembre 2001 fixant les modalités de promotion et de développement des langues nationales." L'aménagement linguistique dans le monde (accessed 21 September 2016) , languages = , religion_ref = , religion_year = 2012 , religion = , demonym = Nigerien , capital = Niamey , coordinates = , largest_city = Niamey , government_type = Unitary state, Unitary Semi-presidential s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Institute Of Tropical Agriculture
The International Institute of Tropical Agriculture (IITA) is a nonprofit organization that works with partners to enhance crop quality and productivity, reduce producer and consumer risks, and generate wealth from agriculture, with the ultimate goals of reducing hunger, malnutrition, and poverty. IITA's research-for-development (R4D) focuses on addressing the development needs of tropical countries. The institute was established in 1967 and headquarters located in Ibadan, Nigeria, with several research stations spread across Africa. The organization is governed by a Board of Trustees, supported by several countries and the Consultative Group on International Agricultural Research (CGIAR). History IITA was established in 1967 in Ibadan as a result of the Ford and Rockefeller Foundations' desire to establish a center for the improvement of the quality of tropical foods. The institute came into existence with the enactment of decree 32. of 1967. Part of the institute's initial goa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivar
A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture, or carefully controlled seed production. Most cultivars arise from purposeful human manipulation, but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of the International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word ''cultivar''''Cultivar'' () has two meanings, as explained in '' Formal definition'': it is a classification category and a taxonomic unit within the category. When referring to a taxon, the word does not apply to an individual plant but to all plants that share the unique characteristics that define the cultivar. was coined as a term meaning "cultivated var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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