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1. Aflatoxin is produced as a product in :

 
 
 
 

2. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

4. Smut of maize is caused by :

 
 
 
 

5. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

7. Cryptogams include :

 
 
 
 

8. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

10. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

12. Red rot of sugarcane is caused by :

 
 
 
 

13. Citrus canker is caused by :

 
 
 
 

14. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

19. Fruits are not found in :

 
 
 
 

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

 
 
 
 

21. Ovules are not found enclosed in ovary in :

 
 
 
 

22. Rice, pea, potato are :

 
 
 
 

23. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

25. Oswald Tippo’s classification was based on :

 
 
 
 

26. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

31. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

33. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Vascular tissue is found in :

 
 
 
 

37. Downy mildew disease is caused by :

 
 
 
 

38. The disease symptom necrosis refers to :

 
 
 
 

39. Pythium debaryanum is the causative agent of:

 
 
 
 

40. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

42. Liverworts are included in :

 
 
 
 

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. Spermatophyta are characterized by producing:

 
 
 
 

45. Which one of the following is a monocot?

 
 
 
 

46. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

48. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

50. Which of the following is a monocot?

 
 
 
 

51. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

53. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Late blight of potato is caused by :

 
 
 
 

59. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

61. Green plants are classified as :

 
 
 
 

62. Club moss and Peat moss belong to:

 
 
 
 

63. Bryophyta have been placed in cryptogams because:

 
 
 
 

64. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Ovary is absent in :

 
 
 
 

73. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Roots are absent in :

 
 
 
 

88. Leaf spot of groundnut is caused by :

 
 
 
 

89. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

91. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

96. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

97. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

99. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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