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1. Liverworts are included in :

 
 
 
 

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

 
 
 
 

3. Club moss and Peat moss belong to:

 
 
 
 

4. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Downy mildew disease is caused by :

 
 
 
 

9. Which among the following is a shrub?

 
 
 
 

10. Most primitive embryophytes are placed in :

 
 
 
 

11. Which of the following is a monocot?

 
 
 
 

12. Leaf spot of groundnut is caused by :

 
 
 
 

13. Pythium debaryanum is the causative agent of:

 
 
 
 

14. Which of the following statements is not correct?

 
 
 
 

15. Ovules are not found enclosed in ovary in :

 
 
 
 

16. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

17. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

19. Late blight of potato is caused by :

 
 
 
 

20. Fruits are not found in :

 
 
 
 

21. The disease symptom necrosis refers to :

 
 
 
 

22. Ergot is obtained from :

 
 
 
 

23. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Gymnosperms could also be called as:

 
 
 
 

27. Rice, pea, potato are :

 
 
 
 

28. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

30. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

39. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Roots are absent in :

 
 
 
 

47. Embryo formation is not known in :

 
 
 
 

48. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

53. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

55. Which one of the following is a monocot?

 
 
 
 

56. Quarantine regulations are concerned with:

 
 
 
 

57. Smut of maize is caused by :

 
 
 
 

58. Aflatoxin is produced as a product in :

 
 
 
 

59. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

66. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

67. Etiology includes the study of :

 
 
 
 

68. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

70. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

72. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

74. Cryptogams include :

 
 
 
 

75. Red rot of sugarcane is caused by :

 
 
 
 

76. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

78. Multicellular and jacketed sex organs are found in :

 
 
 
 

79. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Embryophyta includes :

 
 
 
 

100. Club moss is the common name of :

 
 
 
 

101. Ovary is absent in :

 
 
 
 


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