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1. Banana bunchy top is caused by :

 
 
 
 

2. Oswald Tippo’s classification was based on :

 
 
 
 

3. Pythium debaryanum is the causative agent of:

 
 
 
 

4. Chief constituents of bordeaux mixture are :

 
 
 
 

5. Ergot is obtained from :

 
 
 
 

6. Ovary is absent in :

 
 
 
 

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

 
 
 
 

8. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Aflatoxin is produced as a product in :

 
 
 
 

12. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

13. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

14. Etiology includes the study of :

 
 
 
 

15. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Small epidermal swellings due to infection are called :

 
 
 
 

22. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

24. Leaf spot of groundnut is caused by :

 
 
 
 

25. Spermatophyta are characterized by producing:

 
 
 
 

26. Which of the following are included in Tracheophyta?

 
 
 
 

27. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Which of the following is a monocot?

 
 
 
 

31. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

33. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Smut of maize is caused by :

 
 
 
 

37. Liverworts are included in :

 
 
 
 

38. Disease resistant plant varieties can be produced by :

 
 
 
 

39. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Pteridophytes are also known as :

 
 
 
 

43. The disease symptom necrosis refers to :

 
 
 
 

44. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

51. Late blight of potato is caused by :

 
 
 
 

52. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

54. Roots are absent in :

 
 
 
 

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

 
 
 
 

56. Green plants are classified as :

 
 
 
 

57. Seeds are characteristically found in :

 
 
 
 

58. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Which among the following is a shrub?

 
 
 
 

65. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Bryophyta have been placed in cryptogams because:

 
 
 
 

70. Oswald Tippo’s classification is:

 
 
 
 

71. Vascular cryptogam is the term used for :

 
 
 
 

72. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

74. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

76. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

78. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

87. Vascular tissue is found in :

 
 
 
 

88. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

90. Which of the following statements is not correct?

 
 
 
 

91. Cryptogams include :

 
 
 
 

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

 
 
 
 

93. Multicellular and jacketed sex organs are found in :

 
 
 
 

94. Downy mildew disease is caused by :

 
 
 
 

95. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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