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1. Black rust of wheat is caused by:

 
 
 
 

2. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

4. Cryptogams include :

 
 
 
 

5. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Vascular tissue is found in :

 
 
 
 

9. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

11. Chief constituents of bordeaux mixture are :

 
 
 
 

12. Liverworts are included in :

 
 
 
 

13. Smut of maize is caused by :

 
 
 
 

14. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

16. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

18. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

20. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

22. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

33. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Quarantine regulations are concerned with:

 
 
 
 

37. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

44. Fruits are not found in :

 
 
 
 

45. Green plants are classified as :

 
 
 
 

46. Aflatoxin is produced as a product in :

 
 
 
 

47. Spermatophyta are characterized by producing:

 
 
 
 

48. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

50. Which of the following does not contain chlorophyll?

 
 
 
 

51. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Most primitive embryophytes are placed in :

 
 
 
 

55. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Woody climbers are known as :

 
 
 
 

59. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

72. Roots are absent in :

 
 
 
 

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

 
 
 
 

74. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

76. Embryophyta includes :

 
 
 
 

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

 
 
 
 

78. Multicellular and jacketed sex organs are found in :

 
 
 
 

79. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Ovary is absent in :

 
 
 
 

85. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

86. Embryo formation is not known in :

 
 
 
 

87. Disease resistant plant varieties can be produced by :

 
 
 
 

88. Pythium debaryanum is the causative agent of:

 
 
 
 

89. The disease symptom necrosis refers to :

 
 
 
 

90. Club moss and Peat moss belong to:

 
 
 
 

91. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

93. Downy mildew disease is caused by :

 
 
 
 

94. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

95. Which of the following are included in Tracheophyta?

 
 
 
 

96. Citrus canker is caused by :

 
 
 
 

97. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

99. Pteridophytes are also known as :

 
 
 
 

100. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 


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