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

 
 
 
 

2. Which among the following is a shrub?

 
 
 
 

3. Which of the following are included in Tracheophyta?

 
 
 
 

4. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Which of the following is a monocot?

 
 
 
 

14. Late blight of potato is caused by :

 
 
 
 

15. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

17. Spermatophyta are characterized by producing:

 
 
 
 

18. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

20. Vascular tissue is found in :

 
 
 
 

21. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Green plants are classified as :

 
 
 
 

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

 
 
 
 

26. Red rot of sugarcane is caused by :

 
 
 
 

27. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

29. Gymnosperms could also be called as:

 
 
 
 

30. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

31. Oswald Tippo’s classification was based on :

 
 
 
 

32. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Smut of maize is caused by :

 
 
 
 

36. Liverworts are included in :

 
 
 
 

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

 
 
 
 

38. Mixed cropping helps :

 
 
 
 

39. Roots are absent in :

 
 
 
 

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

 
 
 
 

41. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

47. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

49. Etiology includes the study of :

 
 
 
 

50. Disease resistant plant varieties can be produced by :

 
 
 
 

51. Club moss is the common name of :

 
 
 
 

52. Ergot is obtained from :

 
 
 
 

53. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Red rot of sugarcane is caused by :

 
 
 
 

64. Oswald Tippo’s classification is:

 
 
 
 

65. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Small epidermal swellings due to infection are called :

 
 
 
 

70. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

72. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

74. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

85. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

86. Which one of the following is a monocot?

 
 
 
 

87. Aflatoxin is produced as a product in :

 
 
 
 

88. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

90. Vascular cryptogam is the term used for :

 
 
 
 

91. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Banana bunchy top is caused by :

 
 
 
 

95. Downy mildew disease is caused by :

 
 
 
 

96. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

98. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

100. Cryptogams include :

 
 
 
 

101. Which of the following statements is not correct?

 
 
 
 


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