PPT-Classification of Plant diseases

. Terms. Abiotic. plant disease. —caused by unfavorable . growing conditions.. Biotic plant disease. —caused by plant pathogens. .. Pathogen. - . an infectious, biological agent such as a virus, bacteria or fungus that causes disease to its host.. Objective 8.02. Discuss diseases and viruses.. Diseases. A disease is a plant disorder caused by an infectious pathogen or agent. Diseases. There are 3 conditions necessary for diseases in plants. host plant. Botany November 20, 2008. Classifying Plants. Early classification was based upon segregating those plants that were harmful from those that were not.. They were further divided by their specific uses. Principles, aim and systems of classification. History of taxonomy , identification and nomenclature. Terminology and trends in taxonomy. Herbarium and specimen construction . Taxonomy of selected angiosperm families monocots and . Plant/Animal Game. (Classification Exercise). By Abe L. Curtis. Copyright information. Which game do you want to play?. There. are 2 worksheets that go with this game. One is the “Animal Key” and the other is the “WAI” worksheet.. Objective 8.02. Discuss diseases and viruses.. Diseases. A disease is a plant disorder caused by an infectious pathogen or agent. Diseases. There are 3 conditions necessary for diseases in plants. host plant. Help me! I’m dying.. Disease. Disease is a plant disorder caused by an infectious pathogen or agent. Host. – Plant the disease attacks. Pathogen. – Any disease causing agent. Environment. – moisture and temperature needed for the pathogen to grow. . Spring . 2013. Elements of Understanding. Biological Diversity. Description. :. . requires observation and measurement of characters and their states and synthesis of this information. Classification. th. Edition . A Global Perspective. Roger Webber. Chapter 6: . Classification of Communicable Diseases. Communicable diseases are grouped into their main methods of transmission, enabling common control methods to be applied.. Aim of the presentation. To provide an overview of the types of pest and disease that cause damage on plants and produce. To demonstrate the types of symptoms that each type of pest or disease can cause. Peri-Implant Diseases and Conditions. Chapter 4. Classification of Periodontal and . Peri-Implant Diseases and Conditions. Section 2. The 2017 Classification of Periodontal and Peri-Implant Diseases and Conditions . Dr. Habibur Rahman, Associate Professor, J. N. College, Boko. Aims of Taxonomy. . To provide a convenient method of identification and communication.. . To provide classification which is based on natural affinities of organisms, as far as possible.. phytopathology. ) is the scientific study of . diseases. in . plants. caused by . pathogens. (infectious organisms) and environmental conditions (physiological factors).. 2.Organisms that cause infectious disease include . Dept. Plant Pathology, BAU. Four . Phases. Ancient period. Dark period. Renaissance period. Modern period. History of Plant Pathology. Ancient Period. Theophrastus (300-286 B.C.) . Study and write about the diseases of trees, cereals and legumes .