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1. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

3. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

16. Which of the following does not contain chlorophyll?

 
 
 
 

17. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Quarantine regulations are concerned with:

 
 
 
 

25. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

27. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

29. Downy mildew disease is caused by :

 
 
 
 

30. Woody climbers are known as :

 
 
 
 

31. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

33. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Rice, pea, potato are :

 
 
 
 

41. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

43. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Black rust of wheat is caused by:

 
 
 
 

47. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

48. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Etiology includes the study of :

 
 
 
 

52. Chief constituents of bordeaux mixture are :

 
 
 
 

53. Which of the following is a monocot?

 
 
 
 

54. Pythium debaryanum is the causative agent of:

 
 
 
 

55. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Cryptogams include :

 
 
 
 

59. Roots are absent in :

 
 
 
 

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

 
 
 
 

61. Which one of the following is a monocot?

 
 
 
 

62. Red rot of sugarcane is caused by :

 
 
 
 

63. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

65. Maximum diversity of life forms occurs in :

 
 
 
 

66. Embryophyta includes :

 
 
 
 

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

 
 
 
 

68. Late blight of potato is caused by :

 
 
 
 

69. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Small epidermal swellings due to infection are called :

 
 
 
 

77. Bryophyta have been placed in cryptogams because:

 
 
 
 

78. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

80. Ovules are not found enclosed in ovary in :

 
 
 
 

81. Fruits are not found in :

 
 
 
 

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

 
 
 
 

83. Green plants are classified as :

 
 
 
 

84. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

86. Liverworts are included in :

 
 
 
 

87. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

89. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

94. Spermatophyta are characterized by producing:

 
 
 
 

95. Red rot of sugarcane is caused by :

 
 
 
 

96. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

98. Oswald Tippo’s classification was based on :

 
 
 
 

99. Ergot is obtained from :

 
 
 
 

100. Club moss is the common name of :

 
 
 
 

101. Smut of maize is caused by :

 
 
 
 


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