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1. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

3. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Green plants are classified as :

 
 
 
 

15. Downy mildew disease is caused by :

 
 
 
 

16. Roots are absent in :

 
 
 
 

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

 
 
 
 

18. Maximum diversity of life forms occurs in :

 
 
 
 

19. Pythium debaryanum is the causative agent of:

 
 
 
 

20. Multicellular and jacketed sex organs are found in :

 
 
 
 

21. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

31. Cryptogams include :

 
 
 
 

32. Aflatoxin is produced as a product in :

 
 
 
 

33. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Leaf spot of groundnut is caused by :

 
 
 
 

37. Late blight of potato is caused by :

 
 
 
 

38. Chief constituents of bordeaux mixture are :

 
 
 
 

39. Club moss is the common name of :

 
 
 
 

40. Liverworts are included in :

 
 
 
 

41. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Woody climbers are known as :

 
 
 
 

48. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

50. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

52. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

54. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Ovules are not found enclosed in ovary in :

 
 
 
 

61. Bryophyta have been placed in cryptogams because:

 
 
 
 

62. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Fruits are not found in :

 
 
 
 

66. Citrus canker is caused by :

 
 
 
 

67. Black rust of wheat is caused by:

 
 
 
 

68. Which of the following does not contain chlorophyll?

 
 
 
 

69. Red rot of sugarcane is caused by :

 
 
 
 

70. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Small epidermal swellings due to infection are called :

 
 
 
 

81. Vascular cryptogam is the term used for :

 
 
 
 

82. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

84. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

86. Vascular tissue is found in :

 
 
 
 

87. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

89. Quarantine regulations are concerned with:

 
 
 
 

90. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

95. Club moss and Peat moss belong to:

 
 
 
 

96. Embryophyta includes :

 
 
 
 

97. Mixed cropping helps :

 
 
 
 

98. The disease symptom necrosis refers to :

 
 
 
 

99. Which among the following is a shrub?

 
 
 
 

100. Banana bunchy top is caused by :

 
 
 
 

101. Which of the following is a monocot?

 
 
 
 


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