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1. Bryophyta have been placed in cryptogams because:

 
 
 
 

2. Ovary is absent in :

 
 
 
 

3. Banana bunchy top is caused by :

 
 
 
 

4. Which of the following statements is not correct?

 
 
 
 

5. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

7. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Club moss and Peat moss belong to:

 
 
 
 

16. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

22. Mixed cropping helps :

 
 
 
 

23. Rice, pea, potato are :

 
 
 
 

24. Citrus canker is caused by :

 
 
 
 

25. Red rot of sugarcane is caused by :

 
 
 
 

26. Pteridophytes are also known as :

 
 
 
 

27. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Leaf spot of groundnut is caused by :

 
 
 
 

34. The disease symptom necrosis refers to :

 
 
 
 

35. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Disease resistant plant varieties can be produced by :

 
 
 
 

41. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

43. Small epidermal swellings due to infection are called :

 
 
 
 

44. Multicellular and jacketed sex organs are found in :

 
 
 
 

45. Which of the following is a monocot?

 
 
 
 

46. Embryophyta includes :

 
 
 
 

47. Seeds are characteristically found in :

 
 
 
 

48. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

50. Gymnosperms could also be called as:

 
 
 
 

51. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

53. Roots are absent in :

 
 
 
 

54. Liverworts are included in :

 
 
 
 

55. Fruits are not found in :

 
 
 
 

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

 
 
 
 

57. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Vascular cryptogam is the term used for :

 
 
 
 

67. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

69. Which among the following is a shrub?

 
 
 
 

70. Woody climbers are known as :

 
 
 
 

71. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Ovules are not found enclosed in ovary in :

 
 
 
 

75. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

77. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

79. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

81. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Oswald Tippo’s classification is:

 
 
 
 

85. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

86. Cryptogams include :

 
 
 
 

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

 
 
 
 

88. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

89. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

91. Spermatophyta are characterized by producing:

 
 
 
 

92. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

99. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

101. Maximum diversity of life forms occurs in :

 
 
 
 


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