PPT-The Evolution of Agriculture

By Frank W Elwell Note This presentation is based on the theory of Ester Boserup as presented in The Conditions of Agricultural Growth A summary of this and other macrosocial theories can be found in . FloridaAgriculturecom By Frank W. Elwell. Note:. This presentation is based on the theory of Ester Boserup as presented in . The Conditions of Agricultural Growth.. A summary of this and other macro-social theories can be found in . & Challenges . in Nepal. Sushil. . Rijal. . Executive Board Member and Chairman of . Agriculture Committee. Chamber of Industries, Morang . Major Agro Product of Nepal. Paddy. Maize. Wheat. Green Tea . By: Sam Bateman and Trent Topping. Arable Land . Land that is suitable for agricultural production. Examples of unsuitable land are forests, mountains, and inland water bodies. . Arable land includes many farms or fields. Production of agricultural products destined primarily for direct consumption by the producer rather than for market is called. Plantation farming. Hunting and gathering. Subsistence agriculture. Sedentary cultivation. Potential. , . Constraints . and . National . P. riorities. Ahmed M. Al-. wadaey. Assistant Professor. Soil and Water Department. Sana’a University. Feb 25, 2013. Despite agriculture’s relatively low contribution to GDP(21%), the sector remains the most important element of the efforts to combats poverty and provide employment to the majority of the poor in Yemen . the role of research. Purdue University visiting ILVO. 13/05/2016. Veerle Van linden. Sustainable agriculture. the role of research. Arkansas . University visiting ILVO. 18/05/2016. Veerle Van linden. What do we use in order to determine evolutionary relationships?. Fossil Record. Anatomical Evidence. Molecular Evidence. Embryological Evidence. Evidence for Evolution. Fossil Record. Evidence for Evolution. Mechanisms of concerted evolution. Unequal cross-over. Gene conversion: non-reciprocal transfer of information between homologous sequences; the main mechanism invoked to explain concerted evolution. THE MAIN TYPES OF AGRICULTURE IN INDIA. SHIFTING AGRICULTURE / SLASH & BURN / JHUMMING. SUBSISTENCE AGRICULTURE. EXTENSIVE AGRICULTURE. INTENSIVE AGRICULTURE. PLANTATION AGRICULTURE. MIXED FARMING. Chapter 17: Processes of Evolution. Early Beliefs. 19. th. century: discovered species shared many traits, but lived in different parts of the world. Problematic – species only looked similar on the outside, but inside were very different . Evolution. – when a species of plants or animals adapts to their environment in order to survive over a long period of time. Key points!. Species. Plants or Animals. Adaptations. In order to survive. Evolution 9/11. Obj. TSW learn form mistakes made on the quiz, and take notes about evolution after the Environmental Science Current Events. P. 34NB. Make a food chain for the following organisms showing the energy arrows and the . . The process by which organism change over time. Based on science, not opinion.. Darwin. :. Evolution is descent with modification. Evolution. :. changes through time. Species accumulate difference.