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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Aflatoxin is produced as a product in :

 
 
 
 

12. Fruits are not found in :

 
 
 
 

13. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

15. Which of the following are included in Tracheophyta?

 
 
 
 

16. Red rot of sugarcane is caused by :

 
 
 
 

17. Black rust of wheat is caused by:

 
 
 
 

18. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Downy mildew disease is caused by :

 
 
 
 

23. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

31. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

33. Mixed cropping helps :

 
 
 
 

34. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Quarantine regulations are concerned with:

 
 
 
 

38. Green plants are classified as :

 
 
 
 

39. Leaf spot of groundnut is caused by :

 
 
 
 

40. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

42. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Ovary is absent in :

 
 
 
 

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

 
 
 
 

50. Embryophyta includes :

 
 
 
 

51. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Multicellular and jacketed sex organs are found in :

 
 
 
 

56. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

58. Small epidermal swellings due to infection are called :

 
 
 
 

59. Pteridophytes are also known as :

 
 
 
 

60. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

69. Roots are absent in :

 
 
 
 

70. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Which among the following is a shrub?

 
 
 
 

74. Cryptogams include :

 
 
 
 

75. Most primitive embryophytes are placed in :

 
 
 
 

76. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

77. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

79. Club moss and Peat moss belong to:

 
 
 
 

80. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

82. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

84. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Which of the following is a monocot?

 
 
 
 

88. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

89. Seeds are characteristically found in :

 
 
 
 

90. Embryo formation is not known in :

 
 
 
 

91. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Which of the following statements is not correct?

 
 
 
 

96. Maximum diversity of life forms occurs in :

 
 
 
 

97. Etiology includes the study of :

 
 
 
 

98. Smut of maize is caused by :

 
 
 
 

99. Which one of the following is a monocot?

 
 
 
 

100. Red rot of sugarcane is caused by :

 
 
 
 

101. Club moss is the common name of :

 
 
 
 


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