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

 
 
 
 

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

 
 
 
 

3. Multicellular and jacketed sex organs are found in :

 
 
 
 

4. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

9. Small epidermal swellings due to infection are called :

 
 
 
 

10. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

11. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Liverworts are included in :

 
 
 
 

22. Seeds are characteristically found in :

 
 
 
 

23. Embryophyta includes :

 
 
 
 

24. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

26. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Vascular cryptogam is the term used for :

 
 
 
 

32. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

34. Citrus canker is caused by :

 
 
 
 

35. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Smut of maize is caused by :

 
 
 
 

43. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

45. Rice, pea, potato are :

 
 
 
 

46. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Fruits are not found in :

 
 
 
 

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

 
 
 
 

51. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

55. Chief constituents of bordeaux mixture are :

 
 
 
 

56. Oswald Tippo’s classification is:

 
 
 
 

57. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

59. Banana bunchy top is caused by :

 
 
 
 

60. Black rust of wheat is caused by:

 
 
 
 

61. Ovary is absent in :

 
 
 
 

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

 
 
 
 

63. Pythium debaryanum is the causative agent of:

 
 
 
 

64. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Red rot of sugarcane is caused by :

 
 
 
 

68. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Disease resistant plant varieties can be produced by :

 
 
 
 

72. Quarantine regulations are concerned with:

 
 
 
 

73. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

75. Mixed cropping helps :

 
 
 
 

76. Downy mildew disease is caused by :

 
 
 
 

77. Which among the following is a shrub?

 
 
 
 

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. Which of the following is not a fungal disease?

 
 
 
 

80. Gymnosperms could also be called as:

 
 
 
 

81. Club moss and Peat moss belong to:

 
 
 
 

82. Green plants are classified as :

 
 
 
 

83. Which one of the following is a monocot?

 
 
 
 

84. Which of the following are included in Tracheophyta?

 
 
 
 

85. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

93. Which of the following statements is not correct?

 
 
 
 

94. Roots are absent in :

 
 
 
 

95. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 


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