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1. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Which of the following is a monocot?

 
 
 
 

5. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Bryophyta have been placed in cryptogams because:

 
 
 
 

12. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

13. The disease symptom necrosis refers to :

 
 
 
 

14. Multicellular and jacketed sex organs are found in :

 
 
 
 

15. Red rot of sugarcane is caused by :

 
 
 
 

16. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Embryophyta includes :

 
 
 
 

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

 
 
 
 

24. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Disease resistant plant varieties can be produced by :

 
 
 
 

29. Aflatoxin is produced as a product in :

 
 
 
 

30. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

31. Smut of maize is caused by :

 
 
 
 

32. Spermatophyta are characterized by producing:

 
 
 
 

33. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Which of the following are included in Tracheophyta?

 
 
 
 

37. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

39. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Embryo formation is not known in :

 
 
 
 

43. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

45. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Fruits are not found in :

 
 
 
 

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

 
 
 
 

52. Red rot of sugarcane is caused by :

 
 
 
 

53. Banana bunchy top is caused by :

 
 
 
 

54. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Club moss is the common name of :

 
 
 
 

58. Maximum diversity of life forms occurs in :

 
 
 
 

59. Etiology includes the study of :

 
 
 
 

60. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

65. Liverworts are included in :

 
 
 
 

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

 
 
 
 

67. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

69. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Which among the following is a shrub?

 
 
 
 

75. Downy mildew disease is caused by :

 
 
 
 

76. Mixed cropping helps :

 
 
 
 

77. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Ergot is obtained from :

 
 
 
 

86. Leaf spot of groundnut is caused by :

 
 
 
 

87. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

89. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

91. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

96. Which of the following statements is not correct?

 
 
 
 

97. Seeds are characteristically found in :

 
 
 
 

98. Roots are absent in :

 
 
 
 

99. Citrus canker is caused by :

 
 
 
 

100. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 


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