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1. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

7. Oswald Tippo’s classification is:

 
 
 
 

8. Which among the following is a shrub?

 
 
 
 

9. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

10. Red rot of sugarcane is caused by :

 
 
 
 

11. Which one of the following is a monocot?

 
 
 
 

12. Late blight of potato is caused by :

 
 
 
 

13. Rice, pea, potato are :

 
 
 
 

14. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

16. Small epidermal swellings due to infection are called :

 
 
 
 

17. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Etiology includes the study of :

 
 
 
 

21. Banana bunchy top is caused by :

 
 
 
 

22. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

24. Ovary is absent in :

 
 
 
 

25. Embryophyta includes :

 
 
 
 

26. Which of the following does not contain chlorophyll?

 
 
 
 

27. Cryptogams include :

 
 
 
 

28. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

30. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Fruits are not found in :

 
 
 
 

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

 
 
 
 

35. Which of the following is a monocot?

 
 
 
 

36. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Club moss and Peat moss belong to:

 
 
 
 

41. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

47. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Green plants are classified as :

 
 
 
 

67. Smut of maize is caused by :

 
 
 
 

68. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

70. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Citrus canker is caused by :

 
 
 
 

75. Spermatophyta are characterized by producing:

 
 
 
 

76. Leaf spot of groundnut is caused by :

 
 
 
 

77. Ergot is obtained from :

 
 
 
 

78. Mixed cropping helps :

 
 
 
 

79. Woody climbers are known as :

 
 
 
 

80. Pythium debaryanum is the causative agent of:

 
 
 
 

81. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

83. Seeds are characteristically found in :

 
 
 
 

84. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

86. Bryophyta have been placed in cryptogams because:

 
 
 
 

87. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

88. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Black rust of wheat is caused by:

 
 
 
 

93. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

95. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

101. Maximum diversity of life forms occurs in :

 
 
 
 


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