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

 
 
 
 

2. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Which of the following are included in Tracheophyta?

 
 
 
 

7. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Leaf spot of groundnut is caused by :

 
 
 
 

11. Disease resistant plant varieties can be produced by :

 
 
 
 

12. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Green plants are classified as :

 
 
 
 

16. Red rot of sugarcane is caused by :

 
 
 
 

17. Smut of maize is caused by :

 
 
 
 

18. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

20. Bryophyta have been placed in cryptogams because:

 
 
 
 

21. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Most primitive embryophytes are placed in :

 
 
 
 

27. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

29. Liverworts are included in :

 
 
 
 

30. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

31. Ovary is absent in :

 
 
 
 

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

 
 
 
 

33. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Club moss is the common name of :

 
 
 
 

41. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

46. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Black rust of wheat is caused by:

 
 
 
 

50. Downy mildew disease is caused by :

 
 
 
 

51. Ergot is obtained from :

 
 
 
 

52. Which of the following is a monocot?

 
 
 
 

53. Roots are absent in :

 
 
 
 

54. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

56. Red rot of sugarcane is caused by :

 
 
 
 

57. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

59. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Maximum diversity of life forms occurs in :

 
 
 
 

63. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

64. Banana bunchy top is caused by :

 
 
 
 

65. Late blight of potato is caused by :

 
 
 
 

66. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Cryptogams include :

 
 
 
 

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

 
 
 
 

71. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Etiology includes the study of :

 
 
 
 

75. Embryo formation is not known in :

 
 
 
 

76. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

78. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

80. Club moss and Peat moss belong to:

 
 
 
 

81. Which of the following does not contain chlorophyll?

 
 
 
 

82. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

84. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Fruits are not found in :

 
 
 
 

95. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

97. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Rice, pea, potato are :

 
 
 
 

101. Vascular tissue is found in :

 
 
 
 


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