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1. Banana bunchy top is caused by :

 
 
 
 

2. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

4. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

6. Citrus canker is caused by :

 
 
 
 

7. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

9. Roots are absent in :

 
 
 
 

10. Green plants are classified as :

 
 
 
 

11. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

13. Cryptogams include :

 
 
 
 

14. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

16. Ergot is obtained from :

 
 
 
 

17. Seeds are characteristically found in :

 
 
 
 

18. Smut of maize is caused by :

 
 
 
 

19. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

21. Late blight of potato is caused by :

 
 
 
 

22. Red rot of sugarcane is caused by :

 
 
 
 

23. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

24. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Vascular cryptogam is the term used for :

 
 
 
 

32. Rice, pea, potato are :

 
 
 
 

33. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Quarantine regulations are concerned with:

 
 
 
 

40. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Which of the following does not contain chlorophyll?

 
 
 
 

46. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

47. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Mixed cropping helps :

 
 
 
 

53. Disease resistant plant varieties can be produced by :

 
 
 
 

54. Which of the following statements is not correct?

 
 
 
 

55. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

57. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

58. Pteridophytes are also known as :

 
 
 
 

59. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

69. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Embryophyta includes :

 
 
 
 

73. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Which among the following is a shrub?

 
 
 
 

79. Which one of the following is a monocot?

 
 
 
 

80. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

82. Club moss and Peat moss belong to:

 
 
 
 

83. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

89. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

91. Small epidermal swellings due to infection are called :

 
 
 
 

92. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

94. Spermatophyta are characterized by producing:

 
 
 
 

95. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

97. Which of the following is a monocot?

 
 
 
 

98. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

100. Leaf spot of groundnut is caused by :

 
 
 
 

101. Red rot of sugarcane is caused by :

 
 
 
 


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