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

 
 
 
 

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

 
 
 
 

3. Banana bunchy top is caused by :

 
 
 
 

4. Ergot is obtained from :

 
 
 
 

5. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

7. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

9. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

11. Leaf spot of groundnut is caused by :

 
 
 
 

12. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Club moss and Peat moss belong to:

 
 
 
 

18. Red rot of sugarcane is caused by :

 
 
 
 

19. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

21. Embryophyta includes :

 
 
 
 

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

 
 
 
 

23. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Maximum diversity of life forms occurs in :

 
 
 
 

28. Fruits are not found in :

 
 
 
 

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

 
 
 
 

30. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

32. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Disease resistant plant varieties can be produced by :

 
 
 
 

36. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

38. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

40. Which one of the following is a monocot?

 
 
 
 

41. Aflatoxin is produced as a product in :

 
 
 
 

42. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Late blight of potato is caused by :

 
 
 
 

50. Ovary is absent in :

 
 
 
 

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

 
 
 
 

52. Black rust of wheat is caused by:

 
 
 
 

53. Which of the following are included in Tracheophyta?

 
 
 
 

54. Vascular cryptogam is the term used for :

 
 
 
 

55. Which of the following is a monocot?

 
 
 
 

56. Oswald Tippo’s classification was based on :

 
 
 
 

57. Which of the following does not contain chlorophyll?

 
 
 
 

58. Rice, pea, potato are :

 
 
 
 

59. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Woody climbers are known as :

 
 
 
 

69. Seeds are characteristically found in :

 
 
 
 

70. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

71. Etiology includes the study of :

 
 
 
 

72. Spermatophyta are characterized by producing:

 
 
 
 

73. Oswald Tippo’s classification is:

 
 
 
 

74. Smut of maize is caused by :

 
 
 
 

75. Mixed cropping helps :

 
 
 
 

76. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

81. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

86. Embryo formation is not known in :

 
 
 
 

87. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Small epidermal swellings due to infection are called :

 
 
 
 

91. Downy mildew disease is caused by :

 
 
 
 

92. Chief constituents of bordeaux mixture are :

 
 
 
 

93. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 


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