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

 
 
 
 

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

 
 
 
 

4. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

6. Etiology includes the study of :

 
 
 
 

7. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

9. Multicellular and jacketed sex organs are found in :

 
 
 
 

10. Leaf spot of groundnut is caused by :

 
 
 
 

11. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

13. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

15. Aflatoxin is produced as a product in :

 
 
 
 

16. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Gymnosperms could also be called as:

 
 
 
 

23. Embryo formation is not known in :

 
 
 
 

24. Ergot is obtained from :

 
 
 
 

25. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

32. Late blight of potato is caused by :

 
 
 
 

33. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

39. Pteridophytes are also known as :

 
 
 
 

40. Which one of the following is a monocot?

 
 
 
 

41. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

42. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Bryophyta have been placed in cryptogams because:

 
 
 
 

46. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

48. Club moss and Peat moss belong to:

 
 
 
 

49. Citrus canker is caused by :

 
 
 
 

50. Fruits are not found in :

 
 
 
 

51. Seeds are characteristically found in :

 
 
 
 

52. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

58. Liverworts are included in :

 
 
 
 

59. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

61. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

63. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

65. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Green plants are classified as :

 
 
 
 

70. Cryptogams include :

 
 
 
 

71. Most primitive embryophytes are placed in :

 
 
 
 

72. Ovules are not found enclosed in ovary in :

 
 
 
 

73. Vascular cryptogam is the term used for :

 
 
 
 

74. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

76. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Which among the following is a shrub?

 
 
 
 

80. Roots are absent in :

 
 
 
 

81. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Oswald Tippo’s classification is:

 
 
 
 

85. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

87. Which of the following does not contain chlorophyll?

 
 
 
 

88. Red rot of sugarcane is caused by :

 
 
 
 

89. Maximum diversity of life forms occurs in :

 
 
 
 

90. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Vascular tissue is found in :

 
 
 
 

98. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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