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1. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

9. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

11. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

16. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Banana bunchy top is caused by :

 
 
 
 

23. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Which of the following is a monocot?

 
 
 
 

33. Etiology includes the study of :

 
 
 
 

34. Ovary is absent in :

 
 
 
 

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

 
 
 
 

36. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

38. Roots are absent in :

 
 
 
 

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

 
 
 
 

40. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

44. Which of the following statements is not correct?

 
 
 
 

45. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

47. Chief constituents of bordeaux mixture are :

 
 
 
 

48. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

50. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

52. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

54. Spermatophyta are characterized by producing:

 
 
 
 

55. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

57. Gymnosperms could also be called as:

 
 
 
 

58. Ergot is obtained from :

 
 
 
 

59. Club moss and Peat moss belong to:

 
 
 
 

60. Fruits are not found in :

 
 
 
 

61. Embryophyta includes :

 
 
 
 

62. Cryptogams include :

 
 
 
 

63. Citrus canker is caused by :

 
 
 
 

64. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

66. Oswald Tippo’s classification was based on :

 
 
 
 

67. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Leaf spot of groundnut is caused by :

 
 
 
 

79. Green plants are classified as :

 
 
 
 

80. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

82. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

84. Vascular tissue is found in :

 
 
 
 

85. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Black rust of wheat is caused by:

 
 
 
 

89. Aflatoxin is produced as a product in :

 
 
 
 

90. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

92. Rice, pea, potato are :

 
 
 
 

93. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

95. Woody climbers are known as :

 
 
 
 

96. Small epidermal swellings due to infection are called :

 
 
 
 

97. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

99. Red rot of sugarcane is caused by :

 
 
 
 

100. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 


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