73-695: Ehugbo often referred to as Afikpo , is the second largest urban area in Ebonyi State , Nigeria. It is the headquarters of the Afikpo North Local Government Area . It is situated in the southern part of Ebonyi State and is bordered to the north by the town of Akpoha, to the south by Unwana , to the south west by Edda LGA, to the east by the Cross River State and to the west by Amasiri town. Afikpo spans an area approximately 164 km (63 sq mi). It
146-555: A cassava plant is the root. This is long and tapered, with an easily detached rough brown rind. The white or yellowish flesh is firm and even in texture. Commercial cultivars can be 5 to 10 centimetres (2 to 4 in) wide at the top, and some 15 to 30 cm (6 to 12 in) long, with a woody vascular bundle running down the middle. The tuberous roots are largely starch , with small amounts of calcium (16 milligrams per 100 grams), phosphorus (27 mg/100 g), and vitamin C (20.6 mg/100 g). Cassava roots contains little protein , whereas
219-425: A famine reserve and is invaluable in managing labor schedules. It offers flexibility to resource-poor farmers because it serves as either a subsistence or a cash crop. Worldwide, 800 million people depend on cassava as their primary food staple. Cassava roots, peels and leaves are dangerous to eat raw because they contain linamarin and lotaustralin , which are toxic cyanogenic glycosides . These are decomposed by
292-408: A fine powder and used to make tapioca, a popular starch used to make bubbles, a chewy topping in bubble tea . Alcoholic beverages made from cassava include cauim (Brazil), kasiri (Venezuela, Guyana, Suriname), parakari or kari (Venezuela, Guyana, Surinam), and nihamanchi (South America), A safe processing method known as the "wetting method" is to mix the cassava flour with water into
365-560: A fungicide, then wrapping in plastic, freezing, or applying a wax coating. While alternative methods for controlling post-harvest deterioration have been proposed, such as preventing reactive oxygen species effects by using plastic bags during storage and transport, coating the roots with wax, or freezing roots, such strategies have proved to be economically or technically impractical, leading to breeding of cassava varieties with improved durability after harvest, achieved by different mechanisms. One approach used gamma rays to try to silence
438-522: A gene involved in triggering deterioration; another strategy selected for plentiful carotenoids , antioxidants which may help to reduce oxidization after harvest. Cassava is subject to pests from multiple taxonomic groups, including nematodes, and insects, as well as diseases caused by viruses, bacteria, and fungi. All cause reductions in yield, and some cause serious losses of crops. Several viruses cause enough damage to cassava crops to be of economic importance. The African cassava mosaic virus causes
511-788: A high-yielding form of shifting agriculture by the time of European contact in 1492. Cassava was a staple food of pre-Columbian peoples in the Americas and is often portrayed in indigenous art . The Moche people often depicted cassava in their ceramics. Spaniards in their early occupation of Caribbean islands did not want to eat cassava or maize, which they considered insubstantial, dangerous, and not nutritious. They much preferred foods from Spain, specifically wheat bread, olive oil, red wine, and meat, and considered maize and cassava damaging to Europeans. The cultivation and consumption of cassava were nonetheless continued in both Portuguese and Spanish America. Mass production of cassava bread became
584-498: A higher effective yield. The use of tolerant and resistant cultivars is the most practical management method in most locales. Insects such as stem borers and other beetles, moths including Chilomima clarkei , scale insects, fruit flies, shootflies, burrower bugs , grasshoppers, leafhoppers, gall midges, leafcutter ants, and termites contribute to losses of cassava in the field, while others contribute to serious losses, between 19% and 30%, of dried cassava in storage. In Africa ,
657-729: A humid tropical climate, with one rainy season and one dry season lasting for 8 and 4 months, respectively. The temperature typically ranges from 20 to 38 degrees Celsius during the dry season and from 16 to 28 degrees Celsius during the rainy season. Harmattan winds are common between December and January. The average annual temperature is 28 degrees Celsius, and the average annual humidity is 50-60%. The region receives an average annual precipitation of 2500mm. There are several Igbo dialects spoken in Ebonyi State which includes Edda , Ehugbo (Afikpo), Izzi - Ezza - Mgbo - Ikwo dialect cluster, Oshiri, Unwara, Akpoha, Okposi, Amasiri, Onicha; and
730-927: A legend that cassava was introduced in 1880–1885 CE to the South Indian state of Kerala by the King of Travancore , Vishakham Thirunal Maharaja, after a great famine hit the kingdom, as a substitute for rice. However, there are documented cases of cassava cultivation in parts of the state before the time of Vishakham Thirunal Maharaja. Cassava is called kappa or maricheeni in Malayalam , and tapioca in Indian English usage. Optimal conditions for cassava cultivation are mean annual temperatures between 20 and 29 °C (68 and 84 °F), annual precipitation between 1,000 and 2,500 mm (39 and 98 in), and an annual growth period of no less than 240 days. Cassava
803-594: A mixed Igbo and Kogi dialects spoken in Amuda-Okpolo, Ntezi-Okpoto and Effium , which is also similar to Kukele in Cross River, and Utonkon in Benue States respectively. The State government is led by a democratically elected governor who works closely with members of the state's house of assembly. The Capital city of the state is Abakaliki. The electoral system of each state is selected using
SECTION 10
#1732775645378876-481: A modified two-round system. To be elected in the first round, a candidate must receive the plurality of the vote and over 25% of the vote in at least two -third of the State local government Areas. If no candidate passes threshold, a second round will be held between the top candidate and the next candidate to have received a plurality of votes in the highest number of local government Areas. In 1999, Dr. Sam Ominyi Egwu
949-399: A myth relates that food derives from the body of Dewi Teknowati, who killed herself rather than accept the advances of the god Batara Guru . She was buried, and her lower leg grew into a cassava plant. In Trinidad, folk stories tell of a saapina or snake-woman; the word is related to sabada , meaning to pound, for what is traditionally a woman's work of pounding cassava. The identity of
1022-466: A part of the post-independence Eastern Region until 1967 when the region was split and the area became part of the East Central State . Less than two months afterwards, the former Eastern Region attempted to secede in the three-year long Nigerian Civil War with Ebonyi as a part of the secessionist state of Biafra . At the war's end and the reunification of Nigeria, the East Central State
1095-478: A previous issue was the cassava mealybug ( Phenacoccus manihoti ) and cassava green mite ( Mononychellus tanajoa ). These pests can cause up to 80 percent crop loss, which is extremely detrimental to the production of subsistence farmers. These pests were rampant in the 1970s and 1980s but were brought under control following the establishment of the Biological Control Centre for Africa of
1168-622: A rate of 80 kilometres (50 miles) per year, and as of 2005 was found throughout Uganda, Rwanda, Burundi, the Democratic Republic of the Congo and the Republic of the Congo. Viruses are a severe production limitation in the tropics. They are the primary reason for the complete lack of yield increases in the 25 years up to 2021 . Cassava brown streak virus disease is a major threat to cultivation worldwide. Cassava mosaic virus (CMV)
1241-738: A thick paste, spread it in a thin layer over a basket and then let it stand for five hours at 30 °C in the shade. In that time, about 83% of the cyanogenic glycosides are broken down by linamarase ; the resulting hydrogen cyanide escapes to the atmosphere, making the flour safe for consumption the same evening. The traditional method used in West Africa is to peel the roots and put them into water for three days to ferment. The roots are then dried or cooked. In Nigeria and several other west African countries, including Ghana, Cameroon, Benin, Togo, Ivory Coast, and Burkina Faso, they are usually grated and lightly fried in palm oil to preserve them. The result
1314-593: Is a state in the South-East geopolitical zone of Nigeria , bordered to the north and northeast by Benue State , Enugu State to the west, Cross River State to the east and southeast, and Abia State to the southwest. Named for the Abonyi (Aboine) River —a large part of which is in the state's south—Ebonyi State was formed from parts of Abia and Enugu state in 1996 and has its capital in Abakaliki . One of
1387-511: Is a foodstuff called garri . Fermentation is also used in other places such as Indonesia, such as Tapai . The fermentation process also reduces the level of antinutrients, making the cassava a more nutritious food. The reliance on cassava as a food source and the resulting exposure to the goitrogenic effects of thiocyanate has been responsible for the endemic goiters seen in the Akoko area of southwestern Nigeria. A traditional method used by
1460-488: Is a woody shrub of the spurge family, Euphorbiaceae , native to South America, from Brazil, Paraguay and parts of the Andes. Although a perennial plant, cassava is extensively cultivated in tropical and subtropical regions as an annual crop for its edible starchy tuberous root. Cassava is predominantly consumed in boiled form, but substantial quantities are processed to extract cassava starch, called tapioca , which
1533-512: Is available on the US market in bottled form. Raw cassava is 60% water, 38% carbohydrates, 1% protein, and has negligible fat (table). In a 100-gram ( 3 + 1 ⁄ 2 -ounce) reference serving, raw cassava provides 670 kilojoules (160 kilocalories) of food energy and 23% of the Daily Value (DV) of vitamin C, but otherwise has no micronutrients in significant content (i.e., above 10% of
SECTION 20
#17327756453781606-434: Is harvested at three to four month, when it reaches about 30 to 45 cm (12 to 18 in) above ground; it is dried in the sun until its dry matter content approaches 85 percent. The hay contains 20–27 percent protein and 1.5–4 percent tannin . It is valued as a source of roughage for ruminants such as cattle. Cassava is used in laundry products, especially as starch to stiffen shirts and other garments. In Java,
1679-635: Is located on 6 degrees north latitude and 8 degrees east longitude. Afikpo is a hilly area despite occupying a region low in altitude, which rises 350 feet (110 m) above sea level. It is a transitional area between open grassland and tropical forest and has an average annual rainfall of 79 inches (2,000 mm). The population of Afikpo is estimated at 156,611, according to the Nigerian 2006 Census. Köppen-Geiger climate classification system classifies its climate as tropical wet and dry (Aw). Ebonyi State Ebonyi State ( Igbo : Ȯra Ebonyi )
1752-415: Is mining due to lead , zinc , and limestone deposits around Abakaliki, and locally hand-made baskets of various sizes at Ntezi . Ebonyi has the joint-twentieth highest Human Development Index in the country and numerous institutions of tertiary education. It was one of the six states created in 1996 by the then federal military government of General Sani Abacha . Bounded by the states of Benue to
1825-828: Is primarily an agricultural region. It is a leading producer of rice, yam , potatoes, maize, beans , and cassava , and have a notable basket market in Nigeria. Rice is predominantly cultivated in Ikwo, yams in Izzi, with other regions in the state such as Amasiri, Edda and Ezillo making notable contributions, Effium and Ezzamgo taking the top spots in cassava production, and basket production in Ntezi. Ebonyi has several solid mineral resources, including lead, crude oil , and natural gas, but few large-scale commercial mining mines. The state government has, however, given some incentives to investors in
1898-414: Is propagated by cutting the stem into sections of approximately 15 cm (5.9 in), these being planted prior to the wet season. Cassava growth is favorable under temperatures ranging from 25 to 29 °C (77 to 84 °F), but it can tolerate temperatures as low as 12 °C (54 °F) and as high as 40 °C (104 °F). These conditions are found, among other places, in the northern part of
1971-560: Is sometimes described as the "bread of the tropics" but should not be confused with the tropical and equatorial bread tree (Encephalartos) , the breadfruit (Artocarpus altilis) or the African breadfruit (Treculia africana) . This description definitely holds in Africa and parts of South America; in Asian countries such as Vietnam fresh cassava barely features in human diets. There is
2044-476: Is sufficient to eliminate all toxicity. The cyanide is carried away in the processing water and the amounts produced in domestic consumption are too small to have environmental impact. The larger-rooted, bitter varieties used for production of flour or starch must be processed to remove the cyanogenic glucosides. The large roots are peeled and then ground into flour, which is then soaked in water, squeezed dry several times, and toasted. The starch grains that flow with
2117-633: Is sufficient to kill a rat. Excess cyanide residue from improper preparation causes goiters and acute cyanide poisoning, and is linked to ataxia (a neurological disorder affecting the ability to walk, also known as konzo ). It has also been linked to tropical fibrocalcific pancreatitis in humans, leading to chronic pancreatitis. Symptoms of acute cyanide intoxication appear four or more hours after ingesting raw or poorly processed cassava: vertigo, vomiting, goiter , ataxia , partial paralysis, collapse, and death. It can be treated easily with an injection of thiosulfate (which makes sulfur available for
2190-506: Is used for food, animal feed, and industrial purposes. The Brazilian farofa , and the related garri of West Africa, is an edible coarse flour obtained by grating cassava roots, pressing moisture off the obtained grated pulp, and finally drying it (and roasting in the case of both farofa and garri ). Cassava is the third-largest source of carbohydrates in food in the tropics, after rice and maize , making it an important staple ; more than 500 million people depend on it. It offers
2263-483: Is vital when productivity has declined due to pests and diseases , and smallholders tend to retain less productive but more diverse gene pools . MeFT1 (FT) is a gene producing FT proteins which affect the formation of storage roots in many plants, including this one. Alleles in cassava include MeFT1 and MeFT2 . MeFT1 expression in leaves seems to not be photoperiodic , while MeFT2 clearly is. MeFT1 expression encourages motivation of sucrose towards
Afikpo - Misplaced Pages Continue
2336-410: Is widespread in Africa, causing cassava mosaic disease (CMD). Bredeson et al. 2016 find the M. esculenta cultivars most widely used on that continent have M. carthaginensis subsp. glaziovii genes of which some appear to be CMD resistance genes . Although the ongoing CMD pandemic affects both East and Central Africa, Legg et al. found that these two areas have two distinct subpopulations of
2409-614: The Gulf Coastal Plain in Mexico. In this part of Mexico the following soil types have been shown to be good for cassava cultivation: phaeozem , regosol , arenosol , andosol and luvisol . Before harvest, the leafy stems are removed. The harvest is gathered by pulling up the base of the stem and cutting off the tuberous roots. Cassava deteriorates after harvest, when the tuberous roots are first cut. The healing mechanism produces coumaric acid , which oxidizes and blackens
2482-513: The International Institute of Tropical Agriculture (IITA) under the leadership of Hans Rudolf Herren . The Centre investigated biological control for cassava pests; two South American natural enemies Anagyrus lopezi (a parasitoid wasp) and Typhlodromalus aripo (a predatory mite) were found to effectively control the cassava mealybug and the cassava green mite, respectively. In 2022, world production of cassava root
2555-510: The Lucayans to detoxify cassava is by peeling, grinding, and mashing; filtering the mash through a basket tube to remove the hydrogen cyanide; and drying and sieving the mash for flour. The poisonous filtrate water was boiled to release the hydrogen cyanide, and used as a base for stews. Bioengineering has been applied to grow cassava with lower cyanogenic glycosides combined with fortification of vitamin A , iron and protein to improve
2628-480: The Macushi people of Guyana is closely bound up with the growth and processing of cassava in their slash-and-burn subsistence lifestyle. A story tells that the great spirit Makunaima climbed a tree, cutting off pieces with his axe; when they landed on the ground, each piece became a type of animal. The opossum brought the people to the tree, where they found all the types of food, including bitter cassava. A bird told
2701-562: The River Aloma , which flow along Ebonyi's southeastern and eastern borders, respectively; while fellow Cross River tributaries, the Abonyi (Aboine), Asu, and Eze Aku rivers run through the state's interior. There are other smaller rivers like Ichelle and igbe which also form boundaries between Benue and Ebonyi States to the West. After independence in 1960, the area of now-Ebonyi was
2774-657: The vector , Bemisia tabaci whiteflies. Genetically engineered cassava offers opportunities for the improvement of virus resistance, including CMV and CBSD resistance. Among the most serious bacterial pests is Xanthomonas axonopodis pv. manihotis , which causes bacterial blight of cassava . This disease originated in South America and has followed cassava around the world. Bacterial blight has been responsible for near catastrophic losses and famine in past decades, and its mitigation requires active management practices. Several other bacteria attack cassava, including
2847-676: The 16th century. Around the same period, it was introduced to Asia through Columbian Exchange by Portuguese and Spanish traders, who planted it in their colonies in Goa, Malacca, Eastern Indonesia, Timor and the Philippines. Cassava has also become an important crop in Asia. While it is a valued food staple in parts of eastern Indonesia, it is primarily cultivated for starch extraction and bio-fuel production in Thailand, Cambodia and Vietnam. Cassava
2920-1401: The Abakaliki division make up Ebonyi North and Ebonyi Central senatorial zones, while the Afikpo, Ohaozara, Onicha and Ivo division make up the Ebonyi South senatorial zone. Ebonyi has thirteen local government areas as well as local development centres created by the state government. It is home to eight prominent higher institutions of learning: Ebonyi State University, Abakaliki (EBSU) ; Alex Ekwueme Federal University Ndufu Alike Ikwo ; Akanu Ibiam Federal Polytechnic, Unwana ; Federal College of Agriculture, Ishiagu ; Federal College of Education (Technical), Isu ; Ebonyi State College of Education Ikwo (EBSCOEI); College of Health Sciences, Ezzamgbo; School of Nursing and Midwifery Mater Misericordiae Hospital, Afikpo; School of Nursing and Midwifery Alex Ekwueme Federal University Teaching Hospital, Abakaliki and Ebonyi State College of Health and Midwifery (EBSCONMU), Uburu. In 2021, three other Universities were introduced by Governor David Umahi, Aeronautical Engineering and that of Technology in Ezza and Izzi Local Government Areas (LGA), and King David University of Medical Science, Uburu, Ohaozara LGA, Ebonyi State. Ebonyi State has
2993-734: The Abakaliki end of the Abakaliki-Afikpo Expressway. Ebonyi has 23 flyovers, the highest in South East Nigeria . Ebonyi state is known for its trademark concrete roads and multicolored infrastructure, began by former governor Dave Umahi. Ebonyi State consists of thirteen (13) Local Government Areas . They are: Igbo language is the primary language and there is Korring language spoken by the Orring people of Ebonyi state who are also found in their numbers in northern Cross River state who are known as Ukelle people, and
Afikpo - Misplaced Pages Continue
3066-581: The Caribbean when temperature and rainfall are high. Nematode pests of cassava are thought to cause harms ranging from negligible to seriously damaging, making the choice of management methods difficult. A wide range of plant parasitic nematodes have been reported associated with cassava worldwide. These include Pratylenchus brachyurus , Rotylenchulus reniformis , Helicotylenchus spp., Scutellonema spp. and Meloidogyne spp., of which Meloidogyne incognita and Meloidogyne javanica are
3139-595: The Dioceses of Abakaliki led by Bishop Monday Nkwoagu, Anglican Diocese of Abakaliki Afikpo led by Bishop Paul Udogu (2010), Anglican Diocese of Afikpo Ikwo led by Bishop Kenneth C. Ifemene, Anglican Diocese of Ikwo and Ngbo led by Bishop Godwin A Awoke (2018) Anglican Diocese of Ngbo . A list of tertiary institutions in Ebonyi state includes: Cassava Manihot esculenta , commonly called cassava , manioc , or yuca (among numerous regional names),
3212-474: The HiFi genome assembly revealed extensive chromosome rearrangements and abundant intra-genomic and inter-genomic divergent sequences, with significant structural variations mostly related to long terminal repeat retrotransposons. Although smallholders are otherwise economically inefficient producers, they are vital to productivity at particular times. Small cassava farmers are no exception. Genetic diversity
3285-634: The Ufia and the Ogballa people found in Ado and Oju LGAs of Benue state. There are primarily eleven Igbo dialects spoken in Ebonyi states. They are: Afikpo, Mgbo, Izzi, Ezaa, Edda, Ikwo, Kukele, Legbo, ohofia-agba, Mbembe, Okposi, Uburu. Languages of Ebonyi State listed by LGA: Ebonyi State are predominantly Christians . The Catholic Diocese of Abakaliki (1973) with 174 parishes is under Bishop Peter Nworie Chukwu (2021). [1] The Anglican Province of Enugu includes
3358-686: The advantage of being exceptionally drought-tolerant , and able to grow productively on poor soil. The largest producer is Nigeria, while Thailand is the largest exporter of cassava starch. Cassava is grown in sweet and bitter varieties; both contain toxins, but the bitter varieties have them in much larger amounts. Cassava has to be prepared carefully for consumption, as improperly prepared material can contain sufficient cyanide to cause poisoning . The more toxic varieties of cassava have been used in some places as famine food during times of food insecurity . Farmers may however choose bitter cultivars to minimise crop losses. The generic name Manihot and
3431-547: The agro-allied sector to encourage production but capacity remains largely under utilized. Ebonyi is called "the salt of the nation" for its huge salt deposit at the Okposi and Uburu Salt Lakes. There are also some tourist locations within the state prominent ones include Abakaliki Green Lake, Uburu Salt Lake, Unwana and Ikwo Beaches. Ebonyi has the Ebonyi State International Airport , built on
3504-469: The bitter varieties containing much larger amounts. The more toxic varieties of cassava have been used in some places as famine food during times of food insecurity . For example, during the shortages in Venezuela in the late 2010s, dozens of deaths were reported due to Venezuelans resorting to eating bitter cassava in order to curb starvation. Cases of cassava poisoning were also documented during
3577-538: The cassava enzyme linamarase , releasing poisonous hydrogen cyanide . Cassava varieties are often categorized as either bitter (high in cyanogenic glycosides) or sweet (low in those bitter compounds). Sweet cultivars can contain as little as 20 milligrams of cyanide per kilogram of fresh roots, whereas bitter cultivars may contain as much as 1000 milligrams per kilogram. Cassavas grown during drought are especially high in these toxins. A dose of 25 mg of pure cassava cyanogenic glucoside, which contains 2.5 mg of cyanide,
3650-512: The common name "manioc" both derive from the Guarani (Tupi) name mandioca or manioca for the plant. The specific name esculenta is Latin for 'edible'. The common name "cassava" is a 16th century word from the French or Portuguese cassave , in turn from Taíno caçabi . The common name "yuca" or "yucca" is most likely also from Taíno, via Spanish yuca or juca . The harvested part of
3723-671: The equator, where it can be produced at up to 2,000 m (7,000 ft) above sea level, and with 50 to 5,000 mm (2 to 200 in) of rain per year. These environmental tolerances suit it to conditions across much of South America and Africa. Cassava yields a large amount of food energy per unit area of land per day – 1,000,000 kJ/ha (250,000 kcal/ha), as compared with 650,000 kJ/ha (156,000 kcal/ha) for rice, 460,000 kJ/ha (110,000 kcal/ha) for wheat and 840,000 kJ/ha (200,000 kcal/ha) for maize. Cassava, yams ( Dioscorea spp.), and sweet potatoes ( Ipomoea batatas ) are important sources of food in
SECTION 50
#17327756453783796-626: The famine accompanying the Great Leap Forward (1958–1962) in China. Farmers may select bitter cultivars to reduce crop losses. Societies that traditionally eat cassava generally understand that processing (soaking, cooking, fermentation, etc.) is necessary to avoid getting sick. Brief soaking (four hours) of cassava is not sufficient, but soaking for 18–24 hours can remove up to half the level of cyanide. Drying may not be sufficient, either. For some smaller-rooted, sweet varieties, cooking
3869-524: The first Cuban industry established by the Spanish. Ships departing to Europe from Cuban ports such as Havana , Santiago , Bayamo , and Baracoa carried goods to Spain, but sailors needed to be provisioned for the voyage. The Spanish also needed to replenish their boats with dried meat, water, fruit, and large amounts of cassava bread. Sailors complained that it caused them digestive problems. Portuguese traders introduced cassava to Africa from Brazil in
3942-422: The flavors and also impart them (even if dry) to foods such as rice and chicken cooked in it. The poisonous but volatile hydrogen cyanide is evaporated by heating. Nevertheless, improperly cooked cassava has been blamed for a number of deaths. Amerindians from Guyana reportedly made an antidote by steeping chili peppers in rum . The natives of Guyana traditionally brought the product to town in bottles, and it
4015-715: The leaves are rich in it, except for being low in methionine , an essential amino acid . The complete and haplotype-resolved African cassava (TME204) genome has been reconstructed and made available using the Hi-C technology. The genome shows abundant novel gene loci with enriched functionality related to chromatin organization, meristem development, and cell responses. Differentially expressed transcripts of different haplotype origins were enriched for different functionality during tissue development. In each tissue, 20–30% of transcripts showed allele-specific expression differences with <2% of direction-shifting. Despite high gene synteny,
4088-463: The leaves of the cassava plant to wither, limiting the growth of the root. An outbreak of the virus in Africa in the 1920s led to a major famine. The virus is spread by the whitefly and by the transplanting of diseased plants into new fields. Sometime in the late-1980s, a mutation occurred in Uganda that made the virus even more harmful, causing the complete loss of leaves. This mutated virus spread at
4161-497: The most widely reported and economically important. Meloidogyne spp. feeding produces physically damaging galls with eggs inside them. Galls later merge as the females grow and enlarge, and they interfere with water and nutrient supply. Cassava roots become tough with age and restrict the movement of the juveniles and the egg release. It is therefore possible that extensive galling can be observed even at low densities following infection. Other pests and diseases can gain entry through
4234-577: The north for about 96 km (partly across the Ichelle and Igbe Rivers), Cross River to the east for 198 km (123 miles, partly across the River Aloma and Cross River), Abia to the south for 70 km (43 miles), and Enugu to the west. The State of Ebonyi was created from parts of both Enugu State and Abia State , which were the Abakaliki division from Enugu State and the Afikpo division from Abia State respectively. It has three senatorial zones,
4307-412: The nutrition of people in sub-Saharan Africa. In Guyana the traditional cassareep is made from bitter cassava juice. The juice is boiled until it is reduced by half in volume, to the consistency of molasses and flavored with spices —including cloves , cinnamon , salt , sugar , and cayenne pepper . Traditionally, cassareep was boiled in a soft pot, the actual "pepper pot", which would absorb
4380-457: The patient's body to detoxify by converting the poisonous cyanide into thiocyanate). Chronic, low-level exposure to cyanide may contribute to both goiter and tropical ataxic neuropathy , also called konzo , which can be fatal. The risk is highest in famines, when as many as 3 percent of the population may be affected. Like many other roots and tubers, both bitter and sweet varieties of cassava contain antinutritional factors and toxins, with
4453-548: The physical damage caused by gall formation, leading to rots. They have not been shown to cause direct damage to the enlarged tuberous roots, but plant height can be reduced if the root system is reduced. Nematicides reduce the numbers of galls per feeder root, along with fewer rots in the tuberous roots. The organophosphorus nematicide femaniphos does not reduce crop growth or harvest yield. Nematicide use in cassava does not increase harvested yield significantly, but lower infestation at harvest and lower subsequent storage loss provide
SECTION 60
#17327756453784526-630: The related Xanthomonas campestris pv. cassavae , which causes bacterial angular leaf spot. Several fungi bring about significant crop losses, one of the most serious being cassava root rot; the pathogens involved are species of Phytophthora , the genus which causes potato blight. Cassava root rot can result in losses of as much as 80 percent of the crop. A major pest is a rust caused by Uromyces manihotis . Superelongation disease, caused by Elsinoë brasiliensis , can cause losses of over 80 percent of young cassava in Latin America and
4599-442: The relevant DV). Cassava has been studied as a feedstock to produce ethanol as a biofuel , including to improve the efficiency of conversion from cassava flour, and to convert crop residues such as stems and leaves as well as the more easily processed roots. China has created facilities to produce substantial amounts of ethanol fuel from cassava roots. Cassava tubers and hay are used worldwide as animal feed. Young cassava hay
4672-410: The reproductive organs, as shown by experimental overexpression reducing storage root accumulation. Wild populations of M. esculenta subspecies flabellifolia , shown to be the progenitor of domesticated cassava, are centered in west-central Brazil, where it was likely first domesticated no more than 10,000 years ago. Forms of the modern domesticated species can also be found growing in the wild in
4745-488: The roots, making them inedible after a few days. This deterioration is related to the accumulation of reactive oxygen species initiated by cyanide release during mechanical harvesting. Cassava shelf life may be increased up to three weeks by overexpressing a cyanide-insensitive alternative oxidase, which suppressed ROS by 10-fold. Post-harvest deterioration is a major obstacle to the export of cassava. Fresh cassava can be preserved like potato, using thiabendazole or bleach as
4818-525: The smallest states of Nigeria , Ebonyi is the 33rd largest in area and 29th most populous with an estimated population of nearly 2.9 million as of 2016. Geographically, the state is divided between the Cross–Niger transition forests in the far south and the drier Guinean forest–savanna mosaic in the rest of the state. The other important geographical features are the Cross River and its tributary,
4891-702: The south of Brazil. By 4600 BC, cassava pollen appears in the Gulf of Mexico lowlands, at the San Andrés archaeological site. The oldest direct evidence of cassava cultivation comes from a 1,400-year-old Maya site, Joya de Cerén , in El Salvador . It became a staple food of the native populations of northern South America, southern Mesoamerica, and the Taino people in the Caribbean islands , who grew it using
4964-465: The sweet variety is mild to the taste, like potatoes; Jewish households sometimes use it in cholent . It can be made into a flour that is used in breads, cakes and cookies. In Brazil, farofa , a dry meal made from cooked powdered cassava, is roasted in butter, eaten as a side dish, or sprinkled on other food. In Taiwanese culture, now spread to the United States, cassava "juices" are dried to
5037-446: The tropics. The cassava plant gives the third-highest yield of carbohydrates per cultivated area among crop plants, after sugarcane and sugar beets . Cassava plays a particularly important role in agriculture in developing countries, especially in sub-Saharan Africa , because it does well on poor soils and with low rainfall, and because it is a perennial that can be harvested as required. Its wide harvesting window allows it to act as
5110-419: The water during the soaking process are also used in cooking. The flour is used throughout South America and the Caribbean . Industrial production of cassava flour, even at the cottage level, may generate enough cyanide and cyanogenic glycosides in the effluents to have a severe environmental impact. There are many ways of cooking cassava . It has to be prepared correctly to remove its toxicity. The root of
5183-469: Was 330 million tonnes, led by Nigeria with 18% of the total (table). Other major growers were Democratic Republic of the Congo and Thailand. Cassava is the third-largest source of carbohydrates in food in the tropics, after rice and maize . making it an important staple; more than 500 million people depend on it. It offers the advantage of being exceptionally drought-tolerant , and able to grow productively on poor soil. Cassava grows well within 30° of
5256-556: Was elected as the first governor of the state under the People's Democratic Party (PDP). He was succeeded by Martin Elechi who was elected in 2007 and successfully ran for re-election in 2011, under the same PDP. Gov Martin Elechi was succeeded by the current Governor, Dave Umahi , who was elected in the March 2015 election and re-elected in March 2019 for a second term in office. Ebonyi
5329-500: Was reformed until 1976 when the state's north became Anambra State and the south became Imo State . Fifteen years afterwards, Anambra and Imo states were divided with their eastern parts becoming Enugu State and Abia State , respectively. It was not until 1996, when Enugu State's east and Abia's northeast were split off and joined to form Ebonyi State. Economically, Ebonyi State is based around agriculture, mainly of yams , rice , oil palm , and cassava crops. A key minor industry
#377622