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1. Red rot of sugarcane is caused by :

 
 
 
 

2. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Most primitive embryophytes are placed in :

 
 
 
 

9. Which one of the following is a monocot?

 
 
 
 

10. Downy mildew disease is caused by :

 
 
 
 

11. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Banana bunchy top is caused by :

 
 
 
 

15. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

17. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

19. Fruits are not found in :

 
 
 
 

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

 
 
 
 

21. Etiology includes the study of :

 
 
 
 

22. Chief constituents of bordeaux mixture are :

 
 
 
 

23. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

25. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Cryptogams include :

 
 
 
 

33. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

35. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

42. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

43. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

56. Which of the following is a monocot?

 
 
 
 

57. Spermatophyta are characterized by producing:

 
 
 
 

58. Oswald Tippo’s classification is:

 
 
 
 

59. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

60. Leaf spot of groundnut is caused by :

 
 
 
 

61. Roots are absent in :

 
 
 
 

62. Maximum diversity of life forms occurs in :

 
 
 
 

63. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

65. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

67. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

69. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

71. Liverworts are included in :

 
 
 
 

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

 
 
 
 

73. Red rot of sugarcane is caused by :

 
 
 
 

74. Quarantine regulations are concerned with:

 
 
 
 

75. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

77. Rice, pea, potato are :

 
 
 
 

78. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Club moss and Peat moss belong to:

 
 
 
 

86. Green plants are classified as :

 
 
 
 

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

 
 
 
 

88. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Aflatoxin is produced as a product in :

 
 
 
 

92. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Multicellular and jacketed sex organs are found in :

 
 
 
 

96. Embryophyta includes :

 
 
 
 

97. Citrus canker is caused by :

 
 
 
 

98. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

100. Gymnosperms could also be called as:

 
 
 
 

101. Ovary is absent in :

 
 
 
 


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