Plant Pathology MCQ E-Books Download
  1. What does the term ‘phytopathology’ mean?
    1. A. Study of plant physiology
    2. B. Study of plant diseases
    3. C. Study of soil nutrients
    4. D. Study of plant genetics
      Answer: B
  2. Which of the following is NOT a major objective of plant pathology?
    1. A. Study of biotic causes of diseases
    2. B. Study of the mechanisms of disease resistance in humans
    3. C. Study of host-pathogen interaction
    4. D. Development of disease management methods
      Answer: B
  3. What is a symptom in plant pathology?
    1. A. The external or internal visible effect of a disease
    2. B. A type of pathogen causing the disease
    3. C. A natural growth stage of a plant
    4. D. The absence of pathogens
      Answer: A
  4. Which ancient text first discussed the classification of plant diseases and germ theory?
    1. A. Bible
    2. B. Rigveda
    3. C. Theophrastus’ “Enquiry into Plants”
    4. D. Agnipuran
      Answer: B
  5. What book written by Surapal contains information about plant diseases?
    1. A. Artha Shashtra
    2. B. Vraksha Ayurveda
    3. C. Sushruta Samhita
    4. D. Vishnu Puran
      Answer: B
  6. What does the Federation of British Plant Pathologists define disease as?
    1. A. A spontaneous malfunction in plants
    2. B. A harmful deviation from normal physiological functioning
    3. C. A disturbance caused by biotic or abiotic agents
    4. D. An irreversible natural process
      Answer: B
  7. Who is considered the first to study plant diseases scientifically?
    1. A. Aristotle
    2. B. Theophrastus
    3. C. Hippocrates
    4. D. Surapal
      Answer: B
  8. What is the origin of the term ‘phytopathology’?
    1. A. Latin
    2. B. Sanskrit
    3. C. Greek
    4. D. Hebrew
      Answer: C
  9. Which plant disease is NOT mentioned in the Bible?
    1. A. Rust
    2. B. Blight
    3. C. Downy mildew
    4. D. Bacterial wilt
      Answer: D
  10. Which ancient Indian text is known to provide the first detailed information on plant diseases?
    1. A. Agnipuran
    2. B. Rigveda
    3. C. Vraksha Ayurveda
    4. D. Atharvanaveda
      Answer: C
  11. Plant diseases are recognized by the ______ they produce.
    1. A. Causes
    2. B. Pathogens
    3. C. Symptoms
    4. D. Germs
      Answer: C
  12. Which statement about Theophrastus is true?
    1. A. He conducted experiments to study plant diseases.
    2. B. He believed plant diseases were caused by external agents.
    3. C. He wrote ‘Enquiry into Plants’ based on observations.
    4. D. He introduced the germ theory of disease.
      Answer: C
  13. What does the term “mesobiotic” refer to in plant pathology?
    1. A. Abiotic factors
    2. B. Non-living entities
    3. C. Entities between living and non-living
    4. D. Environmental influences
      Answer: C
  14. Which society accepts the definition of plant disease as a “malfunctioning process caused by continuous irritation”?
    1. A. Indian Phytopathological Society
    2. B. British Mycological Society
    3. C. Federation of British Plant Pathologists
    4. D. American Phytopathological Society
      Answer: D
  15. What did Surapal classify plant diseases into?
    1. A. Fungal and bacterial
    2. B. Biotic and abiotic
    3. C. Internal and external
    4. D. Chronic and acute
      Answer: C
  16. Which of the following is NOT a component of the disease triangle in plant pathology?
    1. A. Host
    2. B. Parasite
    3. C. Soil nutrient
    4. D. Environment
      Answer: C
  17. What is a “biotic cause” in plant pathology?
    1. A. Disease caused by physical damage
    2. B. Disease caused by living organisms
    3. C. Disease caused by abiotic factors
    4. D. Disease caused by soil pH imbalance
      Answer: B
  18. Theophrastus believed that plant diseases were:
    1. A. Caused by germs
    2. B. Autonomous or spontaneous
    3. C. Spread by insects
    4. D. Caused by supernatural forces
      Answer: B
  19. Which branch of science is NOT directly related to plant pathology?
    1. A. Physics
    2. B. Chemistry
    3. C. Psychology
    4. D. Genetics
      Answer: C
  20. The term “plant pathology” is derived from which language?
    1. A. Latin
    2. B. Greek
    3. C. Sanskrit
    4. D. Old English
      Answer: B
Plant Pathology MCQ E-Books Download

MCQs on Mycology (Questions 21–40)

  1. Who developed the first microscope in 1675?
  • A. Robert Koch
  • B. Anton von Leeuwenhoek
  • C. Louis Pasteur
  • D. J. G. Kuhn
    Answer: B
  1. Who is known as the Father of Mycology?
  • A. E. M. Fries
  • B. P. A. Micheli
  • C. Robert Hartig
  • D. Anton de Bary
    Answer: B
  1. Who published a paper on bunt or stinking smut of wheat in 1755?
  • A. Tillet
  • B. Prevost
  • C. Micheli
  • D. Eriksson
    Answer: A
  1. Who first provided evidence that bunt of wheat is caused by a fungus?
  • A. H. M. Ward
  • B. I. B. Prevost
  • C. Tillet
  • D. M. S. Woronin
    Answer: B
  1. Which publication is considered the foundation for naming fungi?
  • A. Vraksha Ayurveda
  • B. Diseases of Trees
  • C. Systema Mycologicum
  • D. Enquiry into Plants
    Answer: C
  1. What major event was caused by Phytophthora infestans in 1845?
  • A. Irish Potato Famine
  • B. Great Bengal Famine
  • C. Introduction of Bordeaux mixture
  • D. Discovery of Penicillin
    Answer: A
  1. Who is regarded as the Father of Modern Plant Pathology?
  • A. Anton de Bary
  • B. Robert Hartig
  • C. H. M. Ward
  • D. E. C. Stakman
    Answer: A
  1. What year did Anton de Bary prove that Phytophthora infestans causes potato late blight?
  • A. 1845
  • B. 1861
  • C. 1865
  • D. 1874
    Answer: B
  1. Who discovered the Bordeaux mixture in 1885?
  • A. Robert Hartig
  • B. Pierre Marie Alexis Millardet
  • C. H. M. Ward
  • D. Eriksson
    Answer: B
  1. Which pathogen caused the Great Bengal Famine in 1943?
  • A. Phytophthora infestans
  • B. Helminthosporium oryzae
  • C. Puccinia graminis
  • D. Plasmodiophora brassicae
    Answer: B
  1. Who is called the Father of Forest Pathology?
  • A. H. M. Ward
  • B. Robert Hartig
  • C. E. M. Fries
  • D. Anton de Bary
    Answer: B
  1. What is the significance of the year 1869 in Mycology?
  • A. Coffee rust devastated England’s coffee production.
  • B. Downy mildew introduced to Europe.
  • C. Sulphur used for peach mildew.
  • D. Bordeaux mixture discovered.
    Answer: A
  1. Who defined and named mycorrhizal associations in plant roots?
  • A. A. B. Frank
  • B. E. M. Fries
  • C. W. A. Orton
  • D. J. G. Kuhn
    Answer: A
  1. Which scientist is associated with physiologic races of cereal rust fungus in 1894?
  • A. Eriksson
  • B. Robert Hartig
  • C. A. B. Frank
  • D. H. N. Hansen
    Answer: A
  1. Who demonstrated parasexualism in fungi in 1953?
  • A. E. M. Fries
  • B. Pontecorvo and associates
  • C. H. N. Hansen
  • D. J. G. Horsfall
    Answer: B
  1. Which hypothesis was developed by H. H. Flor in 1942?
  • A. Toxin theory
  • B. Gene-for-gene hypothesis
  • C. Vertical resistance theory
  • D. Horizontal resistance theory
    Answer: B
  1. Who began the journal Review of Applied Mycology?
  • A. E. J. Butler
  • B. H. H. Flor
  • C. M. S. Woronin
  • D. E. A. Gaümann
    Answer: A
  1. What year did Sir Alexander Fleming isolate penicillin?
  • A. 1920
  • B. 1929
  • C. 1934
  • D. 1938
    Answer: B
  1. Who introduced the concept of systemic fungicides?
  • A. van Schmeling and Kulka
  • B. H. N. Hansen
  • C. R. H. Biffen
  • D. J. G. Horsfall
    Answer: A
  1. Who is known as the Father of Tropical Plant Pathology?
  • A. H. M. Ward
  • B. Robert Hartig
  • C. E. J. Butler
  • D. E. M. Fries
    Answer: A

MCQs on Plant Virology (Questions 41–50)

  1. Who described the disease of tobacco called mosaikkranheit in 1886?
  • A. Dimitri Ivanowski
  • B. Adolf Mayer
  • C. M. W. Beijerinck
  • D. W. M. Stanley
    Answer: B
  1. Which scientist demonstrated that the causal agent of tobacco mosaic could pass through bacterial filters in 1892?
  • A. E. F. Smith
  • B. Dimitri Ivanowski
  • C. M. W. Beijerinck
  • D. Adolf Mayer
    Answer: B
  1. Who first used the term “virus” and believed it to be contagium vivum fluidum?
  • A. W. M. Stanley
  • B. Dimitri Ivanowski
  • C. M. W. Beijerinck
  • D. F. C. Bawden
    Answer: C
  1. What tool did F. O. Holmes provide in 1929 for measuring viruses?
  • A. Crystal formation method
  • B. Electron microscope
  • C. Local lesion assay
  • D. Virus isolation techniques
    Answer: C
  1. Who proved that viruses can be crystallized and won the Nobel Prize in 1946?
  • A. F. C. Bawden
  • B. W. M. Stanley
  • C. Dimitri Ivanowski
  • D. Gierer and Schramm
    Answer: B
  1. What did F. C. Bawden and N. W. Pirie discover in 1936 about the crystalline nature of viruses?
  • A. They consist of protein only
  • B. They contain nucleic acid and protein
  • C. They are entirely composed of RNA
  • D. They can pass through bacterial filters
    Answer: B
  1. Who first observed the TMV virus particles using an electron microscope?
  • A. M. W. Beijerinck
  • B. Kausche and colleagues
  • C. Gierer and Schramm
  • D. T. O. Diener
    Answer: B
  1. What discovery by Gierer and Schramm in 1956 advanced our understanding of viral infection?
  • A. Satellite viruses
  • B. Viroids
  • C. Nucleic acid is the infectious agent of viruses
  • D. TMV mutation induction
    Answer: C
  1. What are viroids, discovered by T. O. Diener in 1971?
  • A. Satellite viruses causing crop diseases
  • B. Helical microorganisms with walls
  • C. Infectious RNA molecules smaller than viruses
  • D. Mutated forms of Tobacco Mosaic Virus
    Answer: C
  1. What significant discovery was made by Davies et al. in 1972 related to corn stunt disease?
  • A. Satellite viruses
  • B. Mycoplasmalike organisms
  • C. Spiroplasma
  • D. Viroids
    Answer: C
Plant Pathology MCQ E-Books Download
MCQs on Plant Pathology Definition and History
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