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1. Etiology includes the study of :

 
 
 
 

2. Pteridophytes are also known as :

 
 
 
 

3. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

7. Which one of the following is a monocot?

 
 
 
 

8. Fruits are not found in :

 
 
 
 

9. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Red rot of sugarcane is caused by :

 
 
 
 

16. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

18. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

24. Embryophyta includes :

 
 
 
 

25. Cryptogams include :

 
 
 
 

26. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

28. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

30. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Mixed cropping helps :

 
 
 
 

38. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Which of the following is a monocot?

 
 
 
 

43. Rice, pea, potato are :

 
 
 
 

44. Woody climbers are known as :

 
 
 
 

45. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

47. Oswald Tippo’s classification is:

 
 
 
 

48. Embryo formation is not known in :

 
 
 
 

49. Pythium debaryanum is the causative agent of:

 
 
 
 

50. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Multicellular and jacketed sex organs are found in :

 
 
 
 

60. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

62. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

64. Ovules are not found enclosed in ovary in :

 
 
 
 

65. Which among the following is a shrub?

 
 
 
 

66. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

72. The disease symptom necrosis refers to :

 
 
 
 

73. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

75. Green plants are classified as :

 
 
 
 

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

 
 
 
 

77. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

79. Ovary is absent in :

 
 
 
 

80. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Gymnosperms could also be called as:

 
 
 
 

84. Small epidermal swellings due to infection are called :

 
 
 
 

85. Ergot is obtained from :

 
 
 
 

86. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

88. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

90. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

95. Which of the following are included in Tracheophyta?

 
 
 
 

96. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

98. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

100. Smut of maize is caused by :

 
 
 
 

101. Downy mildew disease is caused by :

 
 
 
 


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