Understanding Plant Diseases Classifications
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Questions and Answers

What is the main difference between non-infectious and infectious plant diseases?

  • Non-infectious diseases can spread from one susceptible host to another, while infectious diseases are caused by unfavorable growth conditions.
  • Non-infectious diseases are caused by environmental factors, while infectious diseases can spread from one susceptible host to another.
  • Non-infectious diseases are caused by bacteria and viruses, while infectious diseases are caused by environmental factors.
  • Non-infectious diseases are caused by unfavorable growth conditions, while infectious diseases can spread from one susceptible host to another. (correct)
  • What causes wilting in plants?

  • Loss of turgor pressure in the cells and tissues (correct)
  • Overexposure to sunlight
  • Presence of mold in the soil
  • Excessive water intake by the plant roots
  • Which factor is associated with spotting in plant tissues?

  • Abiotic factors
  • Excessive water intake by the plant roots
  • Lack of nutrients in the soil
  • Biotic factors (correct)
  • What is a possible cause of deformations in plants?

    <p>Biotic and abiotic factors</p> Signup and view all the answers

    What causes mummification of plant organs?

    <p>Fungal mycelium</p> Signup and view all the answers

    What are the natural reservoirs of infectious agents for plant diseases?

    <p>Soil, water, and animals</p> Signup and view all the answers

    Which of the following primarily cause infectious plant diseases?

    <p>Fungi, bacteria, viruses, protozoa, insects, and parasitic plants</p> Signup and view all the answers

    What has increased the susceptibility of monocultures to infectious plant diseases?

    <p>Modern agricultural practices</p> Signup and view all the answers

    Why is it necessary to address infectious diseases at all stages of crop production?

    <p>To prevent losses and ensure healthy plant growth</p> Signup and view all the answers

    What determines the two classifications of plant diseases?

    <p>The nature of the causative agent</p> Signup and view all the answers

    How are non-infectious diseases caused, and what distinguishes them from infectious diseases?

    <p>Non-infectious diseases are caused by environmental factors, while infectious diseases are caused by pathogens.</p> Signup and view all the answers

    What causes wilting in plants, and what distinguishes the occurrence of spotting in plant tissues?

    <p>Wilting is caused by underwatering, while spotting is due to overwatering.</p> Signup and view all the answers

    How are deformations in plants caused according to the text, and what factors contribute to mummification of plant organs?

    <p>Deformations are caused by environmental factors, and mummification occurs due to excess humidity.</p> Signup and view all the answers

    What are the natural reservoirs of infectious agents, and how can these agents spread?

    <p>Natural reservoirs are other infected plants and debris, and these agents spread through contact with farming equipment.</p> Signup and view all the answers

    Which organisms primarily cause infectious plant diseases according to the text?

    <p>Viruses and bacteria</p> Signup and view all the answers

    Why is it necessary to address infectious diseases at all stages of crop production?

    <p>To minimize economic losses and ensure food security</p> Signup and view all the answers

    What is the main purpose of the review mentioned in the text, and what does it aim to provide?

    <p>To summarize current knowledge on plant diseases and offer insights for disease management</p> Signup and view all the answers

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