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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Woody climbers are known as :

 
 
 
 

6. Club moss is the common name of :

 
 
 
 

7. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

16. Ovules are not found enclosed in ovary in :

 
 
 
 

17. Citrus canker is caused by :

 
 
 
 

18. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Small epidermal swellings due to infection are called :

 
 
 
 

22. Maximum diversity of life forms occurs in :

 
 
 
 

23. Vascular tissue is found in :

 
 
 
 

24. Mixed cropping helps :

 
 
 
 

25. Which of the following statements is not correct?

 
 
 
 

26. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Seeds are characteristically found in :

 
 
 
 

32. Fruits are not found in :

 
 
 
 

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

 
 
 
 

34. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

38. Which one of the following is a monocot?

 
 
 
 

39. Multicellular and jacketed sex organs are found in :

 
 
 
 

40. Green plants are classified as :

 
 
 
 

41. Oswald Tippo’s classification is:

 
 
 
 

42. Downy mildew disease is caused by :

 
 
 
 

43. Disease resistant plant varieties can be produced by :

 
 
 
 

44. Roots are absent in :

 
 
 
 

45. Ovary is absent in :

 
 
 
 

46. Vascular cryptogam is the term used for :

 
 
 
 

47. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

49. Aflatoxin is produced as a product in :

 
 
 
 

50. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

52. Pythium debaryanum is the causative agent of:

 
 
 
 

53. Spermatophyta are characterized by producing:

 
 
 
 

54. Which of the following are included in Tracheophyta?

 
 
 
 

55. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

57. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

61. Banana bunchy top is caused by :

 
 
 
 

62. Leaf spot of groundnut is caused by :

 
 
 
 

63. Liverworts are included in :

 
 
 
 

64. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

66. Gymnosperms could also be called as:

 
 
 
 

67. Red rot of sugarcane is caused by :

 
 
 
 

68. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Rice, pea, potato are :

 
 
 
 

76. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

78. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

80. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

82. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

84. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

91. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Cryptogams include :

 
 
 
 

97. Late blight of potato is caused by :

 
 
 
 

98. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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