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1. Etiology includes the study of :

 
 
 
 

2. A control measure prior to the appearance of a particular disease comes under :

 
 
 
 

3. Green plants are classified as :

 
 
 
 

4. In plants, the substances which accumulate around the site of infection are :

 
 
 
 

5. In which group would you place a plant that reproduces by spores, develops embryo but plant body remains undifferentiated into root, stem and leaves?

 
 
 
 

6. A part of pathogen that is transmitted to the host is termed as :

 
 
 
 

7. Pythium debaryanum is the causative agent of:

 
 
 
 

8. Club moss is the common name of :

 
 
 
 

9. In which of the following plants would you place heterotrophs like slime moulds, rusts, mushrooms, etc.?

 
 
 
 

10. Which of the following is the kingdom of multicellular producers?

 
 
 
 

11. There is a class of phenolic compounds produced by the host plant in response to fungal infections :

 
 
 
 

12. A branch of science that deals with nature, symptoms, development and control of plant diseases is called :

 
 
 
 

13. Chemicals which are applied soon after the outset of infection, suppress the development of pathogen, thus curing the plant, are called :

 
 
 
 

14. If a disease appear on large scale after a long interval it is :

 
 
 
 

15. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a :

 
 
 
 

16. Leaf spot of groundnut is caused by :

 
 
 
 

17. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to :

 
 
 
 

18. Who is known as ‘Father of Taxonomy’?

 
 
 
 

19. Disease resistant plant varieties can be produced by :

 
 
 
 

20. The tallest living gymnosperm tree in the world belongs to :

 
 
 
 

21. Quarantine regulations are concerned with:

 
 
 
 

22. Late blight of potato is caused by :

 
 
 
 

23. An excessive enlargement of diseased organ because of increase in the number of cells is called :

 
 
 
 

24. Red rot of sugarcane is caused by :

 
 
 
 

25. Mixed cropping helps :

 
 
 
 

26. Atracheata term has been used by Oswald Tippo for :

 
 
 
 

27. When the seeds are borne on megasporophylls and are not enclosed in a fruit, the plant belongs to :

 
 
 
 

28. All but one group are included in tracheophyta; which group is this :

 
 
 
 

29. Which of the following causes smut disease in cultivated plants?

 
 
 
 

30. The disease symptom necrosis refers to :

 
 
 
 

31. Maximum diversity of life forms occurs in :

 
 
 
 

32. Roots are absent in :

 
 
 
 

33. A diseased leaf shows some areas with dead tissue. This symptom is often referred to as :

 
 
 
 

34. Oswald Tippo’s classification was based on :

 
 
 
 

35. Rice, pea, potato are :

 
 
 
 

36. Woody climbers are known as :

 
 
 
 

37. Chief constituents of bordeaux mixture are :

 
 
 
 

38. A perennial that bears flowers and fruits once in a life time is known as :

 
 
 
 

39. Bryophyta have been placed in cryptogams because:

 
 
 
 

40. According to Woese, fungi were placed in the domain :

 
 
 
 

41. Seeds are characteristically found in :

 
 
 
 

42. Which of the following are included in Tracheophyta?

 
 
 
 

43. Most primitive embryophytes are placed in :

 
 
 
 

44. The disease occurring more or less regularly from year to year in a particular locality is referred to as :

 
 
 
 

45. Which one of the following belong to cryptogams only:

 
 
 
 

46. Which are non-seed-bearing vascular plants?

 
 
 
 

47. Propagating materials like seeds, tubers, grafts and bulbs can be kept free of pathogens by :

 
 
 
 

48. Vascular tissue is found in :

 
 
 
 

49. Cryptogams include :

 
 
 
 

50. Which of the following does not contain chlorophyll?

 
 
 
 

51. The pathogen that causes covered smut of Sorghum is :

 
 
 
 

52. Which among the following is a shrub?

 
 
 
 

53. The plants with soft and delicate stems, about a meter tall are known as :

 
 
 
 

54. A disease is abnormal state that may result due to :

 
 
 
 

55. The smut mycelium which initiates the infection is usually :

 
 
 
 

56. Which of the following is a monocot?

 
 
 
 

57. Embryophyta includes :

 
 
 
 

58. The causal organism of early blight of potato is :

 
 
 
 

59. The scientist who is famous for his research on rust fungi in India is :

 
 
 
 

60. Ovules are not found enclosed in ovary in :

 
 
 
 

61. Which of the following is not a viral disease?

 
 
 
 

62. Which part of the plant is not affected by Albugo?

 
 
 
 

63. Liverworts are included in :

 
 
 
 

64. The inability of a plant to resist the effects of a pathogen or any other damaging factors is known as :

 
 
 
 

65. When an infection is very wide in occurrence, it is called :

 
 
 
 

66. Aflatoxin is produced as a product in :

 
 
 
 

67. Which of the following organisms has characters of both animals and plants?

 
 
 
 

68. Which one of the following is a monocot?

 
 
 
 

69. Club moss and Peat moss belong to:

 
 
 
 

70. Spermatophyta are characterized by producing:

 
 
 
 

71. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

72. Smut of maize is caused by :

 
 
 
 

73. Fruits are not found in :

 
 
 
 

74. Ergot is obtained from :

 
 
 
 

75. Pteridophytes are also known as :

 
 
 
 

76. Leaves of pea show white powdery patches due to the growth of fungal mycelium with conidia and conidiophores. These are the symptoms of :

 
 
 
 

77. Red rot of sugarcane is caused by :

 
 
 
 

78. Citrus canker is caused by :

 
 
 
 

79. Embryo formation is not known in :

 
 
 
 

80. There are some dead and corky areas with definite margins on the stem, branches and fruits of lemon. This disease should be :

 
 
 
 

81. Multicellular and jacketed sex organs are found in :

 
 
 
 

82. Which of the following does not help in penetration of pathogen into the host?

 
 
 
 

83. Which of the following plants does not belong to Embryophyta?

 
 
 
 

84. Which of the following is not a correct match?

 
 
 
 

85. Downy mildew disease is caused by :

 
 
 
 

86. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called :

 
 
 
 

87. Body disorders due to harmful physiological changes are known as :

 
 
 
 

88. Banana bunchy top is caused by :

 
 
 
 

89. Oswald Tippo’s classification is:

 
 
 
 

90. Which group of plants is called “Amphibians of Plant World”?

 
 
 
 

91. Small epidermal swellings due to infection are called :

 
 
 
 

92. Ovary is absent in :

 
 
 
 

93. Which of the following is not a fungal disease?

 
 
 
 

94. Vascular cryptogam is the term used for :

 
 
 
 

95. Which of the following statements is not correct?

 
 
 
 

96. When a diseased plant is legally stopped from export, this is done under :

 
 
 
 

97. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

98. Which of the following is the most destructive enemies of mankind?

 
 
 
 

99. Gymnosperms could also be called as:

 
 
 
 

100. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

101. Black rust of wheat is caused by:

 
 
 
 


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