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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Chief constituents of bordeaux mixture are :

 
 
 
 

15. Ovary is absent in :

 
 
 
 

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

 
 
 
 

17. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

19. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

21. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Green plants are classified as :

 
 
 
 

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

 
 
 
 

26. Multicellular and jacketed sex organs are found in :

 
 
 
 

27. Red rot of sugarcane is caused by :

 
 
 
 

28. Embryo formation is not known in :

 
 
 
 

29. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

31. Which one of the following is a monocot?

 
 
 
 

32. Liverworts are included in :

 
 
 
 

33. Oswald Tippo’s classification is:

 
 
 
 

34. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

36. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Seeds are characteristically found in :

 
 
 
 

40. Pythium debaryanum is the causative agent of:

 
 
 
 

41. Which among the following is a shrub?

 
 
 
 

42. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

43. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

45. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

47. Club moss is the common name of :

 
 
 
 

48. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Etiology includes the study of :

 
 
 
 

53. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Fruits are not found in :

 
 
 
 

61. Oswald Tippo’s classification was based on :

 
 
 
 

62. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

64. Gymnosperms could also be called as:

 
 
 
 

65. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Rice, pea, potato are :

 
 
 
 

73. Which of the following is a monocot?

 
 
 
 

74. Embryophyta includes :

 
 
 
 

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

 
 
 
 

76. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Most primitive embryophytes are placed in :

 
 
 
 

80. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Bryophyta have been placed in cryptogams because:

 
 
 
 

84. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

86. Roots are absent in :

 
 
 
 

87. Ovules are not found enclosed in ovary in :

 
 
 
 

88. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

90. Leaf spot of groundnut is caused by :

 
 
 
 

91. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

92. Maximum diversity of life forms occurs in :

 
 
 
 

93. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Downy mildew disease is caused by :

 
 
 
 

97. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

99. Cryptogams include :

 
 
 
 

100. Mixed cropping helps :

 
 
 
 

101. ‘Snakes of Plant Kingdom’ is :

 
 
 
 


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