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

 
 
 
 

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

 
 
 
 

3. Aflatoxin is produced as a product in :

 
 
 
 

4. Maximum diversity of life forms occurs in :

 
 
 
 

5. Green plants are classified as :

 
 
 
 

6. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Banana bunchy top is caused by :

 
 
 
 

10. Black rust of wheat is caused by:

 
 
 
 

11. Fruits are not found in :

 
 
 
 

12. Vascular cryptogam is the term used for :

 
 
 
 

13. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

22. Smut of maize is caused by :

 
 
 
 

23. Etiology includes the study of :

 
 
 
 

24. Small epidermal swellings due to infection are called :

 
 
 
 

25. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Club moss and Peat moss belong to:

 
 
 
 

29. Pteridophytes are also known as :

 
 
 
 

30. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Roots are absent in :

 
 
 
 

34. Seeds are characteristically found in :

 
 
 
 

35. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

37. Liverworts are included in :

 
 
 
 

38. Cryptogams include :

 
 
 
 

39. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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. Which one of the following belong to cryptogams only:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

50. Embryophyta includes :

 
 
 
 

51. Ovary is absent in :

 
 
 
 

52. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Which of the following is a monocot?

 
 
 
 

57. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

59. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

61. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

63. Mixed cropping helps :

 
 
 
 

64. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Leaf spot of groundnut is caused by :

 
 
 
 

68. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

70. Chief constituents of bordeaux mixture are :

 
 
 
 

71. Pythium debaryanum is the causative agent of:

 
 
 
 

72. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

74. Which among the following is a shrub?

 
 
 
 

75. Bryophyta have been placed in cryptogams because:

 
 
 
 

76. Disease resistant plant varieties can be produced by :

 
 
 
 

77. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Which one of the following is a monocot?

 
 
 
 

81. Spermatophyta are characterized by producing:

 
 
 
 

82. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

84. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

86. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

94. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Helminthosporium oryzae was the cause of disaster :

 
 
 
 


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