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1. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

6. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Green plants are classified as :

 
 
 
 

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

 
 
 
 

14. Late blight of potato is caused by :

 
 
 
 

15. Pteridophytes are also known as :

 
 
 
 

16. Oswald Tippo’s classification is:

 
 
 
 

17. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

19. Banana bunchy top is caused by :

 
 
 
 

20. Seeds are characteristically found in :

 
 
 
 

21. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

23. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

25. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Fruits are not found in :

 
 
 
 

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

 
 
 
 

30. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

32. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

39. Liverworts are included in :

 
 
 
 

40. Oswald Tippo’s classification was based on :

 
 
 
 

41. Woody climbers are known as :

 
 
 
 

42. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Vascular tissue is found in :

 
 
 
 

50. Ergot is obtained from :

 
 
 
 

51. Embryophyta includes :

 
 
 
 

52. The disease symptom necrosis refers to :

 
 
 
 

53. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

59. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

61. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Vascular cryptogam is the term used for :

 
 
 
 

66. Leaf spot of groundnut is caused by :

 
 
 
 

67. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

73. Which one of the following is a monocot?

 
 
 
 

74. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Club moss is the common name of :

 
 
 
 

78. Cryptogams include :

 
 
 
 

79. Spermatophyta are characterized by producing:

 
 
 
 

80. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

82. Downy mildew disease is caused by :

 
 
 
 

83. Red rot of sugarcane is caused by :

 
 
 
 

84. Which of the following statements is not correct?

 
 
 
 

85. Which of the following are included in Tracheophyta?

 
 
 
 

86. Small epidermal swellings due to infection are called :

 
 
 
 

87. Which of the following is a monocot?

 
 
 
 

88. Rice, pea, potato are :

 
 
 
 

89. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Gymnosperms could also be called as:

 
 
 
 

93. Roots are absent in :

 
 
 
 

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

 
 
 
 

95. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

97. Smut of maize is caused by :

 
 
 
 

98. Chief constituents of bordeaux mixture are :

 
 
 
 

99. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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