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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Etiology includes the study of :

 
 
 
 

7. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

14. Maximum diversity of life forms occurs in :

 
 
 
 

15. Leaf spot of groundnut is caused by :

 
 
 
 

16. Fruits are not found in :

 
 
 
 

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

 
 
 
 

18. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

20. Pteridophytes are also known as :

 
 
 
 

21. Vascular cryptogam is the term used for :

 
 
 
 

22. Seeds are characteristically found in :

 
 
 
 

23. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

25. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

27. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

29. Gymnosperms could also be called as:

 
 
 
 

30. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

32. Which of the following are included in Tracheophyta?

 
 
 
 

33. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Which of the following does not contain chlorophyll?

 
 
 
 

45. Banana bunchy top is caused by :

 
 
 
 

46. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

51. Woody climbers are known as :

 
 
 
 

52. Chief constituents of bordeaux mixture are :

 
 
 
 

53. Smut of maize is caused by :

 
 
 
 

54. Liverworts are included in :

 
 
 
 

55. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

57. Club moss is the common name of :

 
 
 
 

58. Embryo formation is not known in :

 
 
 
 

59. Late blight of potato is caused by :

 
 
 
 

60. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

65. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Roots are absent in :

 
 
 
 

70. Which among the following is a shrub?

 
 
 
 

71. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

76. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

77. Pythium debaryanum is the causative agent of:

 
 
 
 

78. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

80. Vascular tissue is found in :

 
 
 
 

81. Oswald Tippo’s classification was based on :

 
 
 
 

82. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Red rot of sugarcane is caused by :

 
 
 
 

86. Cryptogams include :

 
 
 
 

87. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

93. Ovary is absent in :

 
 
 
 

94. Mixed cropping helps :

 
 
 
 

95. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

97. Spermatophyta are characterized by producing:

 
 
 
 

98. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

100. Embryophyta includes :

 
 
 
 

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

 
 
 
 


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