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1. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

3. Woody climbers are known as :

 
 
 
 

4. Multicellular and jacketed sex organs are found in :

 
 
 
 

5. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Bryophyta have been placed in cryptogams because:

 
 
 
 

10. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

15. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

17. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

19. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

20. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

22. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

23. Ovary is absent in :

 
 
 
 

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

 
 
 
 

25. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

31. Leaf spot of groundnut is caused by :

 
 
 
 

32. Which one of the following is a monocot?

 
 
 
 

33. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

35. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

37. Smut of maize is caused by :

 
 
 
 

38. Vascular cryptogam is the term used for :

 
 
 
 

39. Most primitive embryophytes are placed in :

 
 
 
 

40. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

42. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

44. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Liverworts are included in :

 
 
 
 

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

 
 
 
 

54. Embryophyta includes :

 
 
 
 

55. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

57. Which among the following is a shrub?

 
 
 
 

58. Downy mildew disease is caused by :

 
 
 
 

59. Spermatophyta are characterized by producing:

 
 
 
 

60. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Cryptogams include :

 
 
 
 

67. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Mixed cropping helps :

 
 
 
 

80. Banana bunchy top is caused by :

 
 
 
 

81. Etiology includes the study of :

 
 
 
 

82. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

84. Maximum diversity of life forms occurs in :

 
 
 
 

85. Oswald Tippo’s classification was based on :

 
 
 
 

86. Fruits are not found in :

 
 
 
 

87. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

88. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Ergot is obtained from :

 
 
 
 

92. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

94. Ovules are not found enclosed in ovary in :

 
 
 
 

95. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

97. Red rot of sugarcane is caused by :

 
 
 
 

98. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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