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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

9. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Cryptogams include :

 
 
 
 

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

 
 
 
 

14. Liverworts are included in :

 
 
 
 

15. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

17. Which among the following is a shrub?

 
 
 
 

18. Quarantine regulations are concerned with:

 
 
 
 

19. Spermatophyta are characterized by producing:

 
 
 
 

20. Oswald Tippo’s classification was based on :

 
 
 
 

21. Citrus canker is caused by :

 
 
 
 

22. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

24. Small epidermal swellings due to infection are called :

 
 
 
 

25. Ovary is absent in :

 
 
 
 

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

 
 
 
 

27. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

29. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

34. Chief constituents of bordeaux mixture are :

 
 
 
 

35. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

37. Etiology includes the study of :

 
 
 
 

38. Roots are absent in :

 
 
 
 

39. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Pythium debaryanum is the causative agent of:

 
 
 
 

43. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

45. Downy mildew disease is caused by :

 
 
 
 

46. Oswald Tippo’s classification is:

 
 
 
 

47. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Multicellular and jacketed sex organs are found in :

 
 
 
 

51. The disease symptom necrosis refers to :

 
 
 
 

52. Rice, pea, potato are :

 
 
 
 

53. Red rot of sugarcane is caused by :

 
 
 
 

54. Vascular cryptogam is the term used for :

 
 
 
 

55. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

57. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

59. Ergot is obtained from :

 
 
 
 

60. Seeds are characteristically found in :

 
 
 
 

61. Embryophyta includes :

 
 
 
 

62. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

67. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

68. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

70. Club moss is the common name of :

 
 
 
 

71. Which of the following does not contain chlorophyll?

 
 
 
 

72. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

74. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Fruits are not found in :

 
 
 
 

87. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

92. Bryophyta have been placed in cryptogams because:

 
 
 
 

93. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

99. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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