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1. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

3. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

5. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

7. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

9. Etiology includes the study of :

 
 
 
 

10. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

12. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

14. Green plants are classified as :

 
 
 
 

15. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Club moss is the common name of :

 
 
 
 

19. Liverworts are included in :

 
 
 
 

20. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

22. Aflatoxin is produced as a product in :

 
 
 
 

23. Maximum diversity of life forms occurs in :

 
 
 
 

24. Chief constituents of bordeaux mixture are :

 
 
 
 

25. Woody climbers are known as :

 
 
 
 

26. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

28. Leaf spot of groundnut is caused by :

 
 
 
 

29. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Vascular tissue is found in :

 
 
 
 

39. Which of the following are included in Tracheophyta?

 
 
 
 

40. Disease resistant plant varieties can be produced by :

 
 
 
 

41. Rice, pea, potato are :

 
 
 
 

42. Oswald Tippo’s classification is:

 
 
 
 

43. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

45. Cryptogams include :

 
 
 
 

46. Which of the following does not contain chlorophyll?

 
 
 
 

47. Small epidermal swellings due to infection are called :

 
 
 
 

48. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

56. Gymnosperms could also be called as:

 
 
 
 

57. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

59. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

61. Which of the following statements is not correct?

 
 
 
 

62. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

64. Ovary is absent in :

 
 
 
 

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

 
 
 
 

66. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

72. The disease symptom necrosis refers to :

 
 
 
 

73. Vascular cryptogam is the term used for :

 
 
 
 

74. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Late blight of potato is caused by :

 
 
 
 

82. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Roots are absent in :

 
 
 
 

86. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

91. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Spermatophyta are characterized by producing:

 
 
 
 

97. Fruits are not found in :

 
 
 
 

98. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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