It was brought by Portuguese slavers into SaoTomé and Principe, where they had important trading bases and was spread further by traders, missionaries and other travelers (Bown, 2000; George, 2011). It was introduced to Ethiopia in 1978 (Amsalu et al., 2008). 2.2 Botany Tannia is a herbaceous, monocotyledonous, perennial plant, but for practical purposes, it is harvested after 6 -12 months of growth (Castro, 2006; Ramesh et al., 2007; Lebot, 2009). Photo synthetically it follow C-3 pathway (kay, 1987). It can reach up to a height of about 2 m and have a short erect stem, having a corm or main underground stem in the for... ... middle of paper ... ...l differences on tannia accessions on the length of petiole, leaf blade length and width, and size cormel.
Cocoa is grown primarily by small scale farmers mainly in tropical cropping systems. Rice is a very important crop grown by small and medium scale farmers. (1) Most of this nation’s bananas, cacao, coffee and sugar cane are raised on plantations in the coastal lowlands. Oranges and rice are also grown in the coastal lowlands. Ecuador is the world’s leading producer of balsa wood which grows in the coastal lowlands.
The stems are woody and brittle, whose diameter varies with age, averaging about 3 to 6 cm (Nartey 1978). The cassava plant is mainly cultivated for its tuberous starchy root. The crop is a major source of calories, following maize, sugar (cane and beet), and rice, for over 400 million people in tropical countries in Asia, Latin America, and Africa (El-Sharkway 1993). Cassava provides 38.7%, 11.7%, and 6.7% of the total caloric intake in Africa, Latin America, and the Far East, respectively (Nartey 1978). Cassava has high dry weight proportion, between 30% and 40%, and starch and sugar make up 90% of the dry matter (Cock 1958).
Cameroonians speak English and French, there are also about twenty-seven other tribal languages (Edman, 2014). Physical characteristics Cameroon is sometimes described as "Africa in miniature" because it has all of the major climates and vegetation of Africa: mountains, desert, rain forest, savanna grassland, and ocean coastland. Their natural resources include oil, timber, hydroelectric power, natural gas, cobalt, nickel. It has a tropical climate that would be great for beaches, but since it is in central Africa, it has none (Our-Africa Climate and Agriculture). Economy On the plateau land of the south, coffee, sugar and tobacco are important cash crops.
It is predominantly grown by small-scale farmers in the mid and low-altitude, sub-humid agro-ecologies. It is primarily produced and consumed by the small-scale farmers that comprise about 80% of Ethiopia’s population (Dawitet al., 2008). Ethiopia, one of the world’s centers of genetic diversity in crop germplasm (McCann 2001), produces more of maize than any other crop (CSA 2010).However, in comparison to other farming systems in Sub-Saharan Africa, the highland temperate system has the lowest area devoted to maize (Gibbon et al,. 2007) The majority of Ethiopia’s maize comes from three regions: Oromia (61%), Amhara (20%) and SNNPR (12%). It is largely produced in western, central, southern and eastern part of the county (MoA, 2011).
A number of staple food crops such as banana, sago, taro, greater yam, highland and lowland pitpits etc. were domesticated by the people of New Guinea area thousands of years ago . PNG with one percent of world geographical land area inhabit 5% of the world’s biodiversity . Traditionally, PNG farmers have a culture of actively sustaining this prolific biodiversity through their ago old agricultural practice . In the 1884 colonial period formally started when most local economies depended almost entirely on the cultivation of staple crops as the basis of their livelihood.
In Pakistan, linseed is grown on marginal and sub-marginal lands under irrigated as well as rain fed conditions of Punjab and Sindh provinces with 1340 and 4092 ha (2008-09) respectively. In Punjab, it is cultivated mainly in districts of Faisalabad, TT Singh, Gujarat, MB Din, Sargodha, Narowal, Sahiwal, Layyah, Bahawalpur and Bahawalnagar. Whereas in Sindh, it is grown in Jacobabad, Shikarpur, Larkana and Dadu districts. Its national average yield during 2008-09 was 673 kg/ha. ECONOMIC IMPORTANCE OF LINSEED:- Linseed is grown in temperate as well as in tropical regions.
Agriculture has been practiced in what is now Alabama for centuries. Alabama agriculture has changed considerably since the mid-1860s, when cotton was king and Alabama was known as "The Cotton State." One hundred years ago almost four million acres were planted to cotton, and today only 1.3 million acres are devoted to all agricultural crops” (Mitchell, 2007). Agriculture in Alabama is mainly cotton and peanuts in the past they grew cattle corn and cotton. The Native Americans started Alabama off with slash-and-burn agriculture, in which they cut and burned forests to make room for their fields of corn, beans, and squash.
These vegetables are also normally grown form household to household and used for the family use. Groundnuts and sorghum are some of Africa’s common cash crops and are mostly grown and sold for locals. Wheat and rice are mostly imported from other areas, such as Asia, Europe, and North America. This is because most of Africa’s climate regions are not acceptable for these crops (African Food Staples). Africa is home to the Nile River which is divided into the White Nile and the Blue Nile.
Proso millet commonly grows up to four feet tall, and the seeds are small round seeds about two millimeters in diameter (Proso Millet, 1996). Other common names for proso millet include millet, yellow millet and yellow hog. (Baltensperger) Proso millet traces its origins back to ancient times when it was grown as a cereal grain. Proso millet has been grown in many areas of the world, including Russia, China, Romania, Afghanistan, Turkey, and India (Baltensperger). In many of these countries, proso millet is produced as a human food source (Boland, 2003).