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

 
 
 
 

2. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

4. Downy mildew disease is caused by :

 
 
 
 

5. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Most primitive embryophytes are placed in :

 
 
 
 

11. Gymnosperms could also be called as:

 
 
 
 

12. Cryptogams include :

 
 
 
 

13. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Woody climbers are known as :

 
 
 
 

18. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

20. Smut of maize is caused by :

 
 
 
 

21. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

22. Which of the following are included in Tracheophyta?

 
 
 
 

23. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

25. Chief constituents of bordeaux mixture are :

 
 
 
 

26. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Which of the following statements is not correct?

 
 
 
 

35. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Which of the following is a monocot?

 
 
 
 

44. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

46. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Red rot of sugarcane is caused by :

 
 
 
 

51. Banana bunchy top is caused by :

 
 
 
 

52. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Ovary is absent in :

 
 
 
 

56. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Vascular cryptogam is the term used for :

 
 
 
 

60. Leaf spot of groundnut is caused by :

 
 
 
 

61. Ovules are not found enclosed in ovary in :

 
 
 
 

62. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Ergot is obtained from :

 
 
 
 

68. Green plants are classified as :

 
 
 
 

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

 
 
 
 

70. Club moss and Peat moss belong to:

 
 
 
 

71. Roots are absent in :

 
 
 
 

72. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

74. Citrus canker is caused by :

 
 
 
 

75. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

77. Red rot of sugarcane is caused by :

 
 
 
 

78. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

80. Seeds are characteristically found in :

 
 
 
 

81. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

83. Bryophyta have been placed in cryptogams because:

 
 
 
 

84. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

86. Oswald Tippo’s classification was based on :

 
 
 
 

87. Liverworts are included in :

 
 
 
 

88. Disease resistant plant varieties can be produced by :

 
 
 
 

89. Fruits are not found in :

 
 
 
 

90. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

92. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

94. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

99. Embryophyta includes :

 
 
 
 

100. Club moss is the common name of :

 
 
 
 

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

 
 
 
 


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