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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Most primitive embryophytes are placed in :

 
 
 
 

8. Embryo formation is not known in :

 
 
 
 

9. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Etiology includes the study of :

 
 
 
 

14. Rice, pea, potato are :

 
 
 
 

15. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Mixed cropping helps :

 
 
 
 

19. Citrus canker is caused by :

 
 
 
 

20. Maximum diversity of life forms occurs in :

 
 
 
 

21. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

23. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Cryptogams include :

 
 
 
 

29. Small epidermal swellings due to infection are called :

 
 
 
 

30. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Green plants are classified as :

 
 
 
 

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

 
 
 
 

35. Multicellular and jacketed sex organs are found in :

 
 
 
 

36. Oswald Tippo’s classification was based on :

 
 
 
 

37. Banana bunchy top is caused by :

 
 
 
 

38. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

40. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

46. Pteridophytes are also known as :

 
 
 
 

47. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

48. Disease resistant plant varieties can be produced by :

 
 
 
 

49. Which of the following does not contain chlorophyll?

 
 
 
 

50. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Embryophyta includes :

 
 
 
 

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

 
 
 
 

56. Roots are absent in :

 
 
 
 

57. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

59. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

63. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

65. Bryophyta have been placed in cryptogams because:

 
 
 
 

66. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

68. Seeds are characteristically found in :

 
 
 
 

69. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

71. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

73. Vascular tissue is found in :

 
 
 
 

74. Club moss and Peat moss belong to:

 
 
 
 

75. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

77. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

79. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

81. Which among the following is a shrub?

 
 
 
 

82. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

87. Late blight of potato is caused by :

 
 
 
 

88. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Fruits are not found in :

 
 
 
 

92. Smut of maize is caused by :

 
 
 
 

93. Liverworts are included in :

 
 
 
 

94. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Club moss is the common name of :

 
 
 
 


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