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

 
 
 
 

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

 
 
 
 

3. Cryptogams include :

 
 
 
 

4. Embryophyta includes :

 
 
 
 

5. Which among the following is a shrub?

 
 
 
 

6. Oswald Tippo’s classification is:

 
 
 
 

7. Spermatophyta are characterized by producing:

 
 
 
 

8. Smut of maize is caused by :

 
 
 
 

9. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

11. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

13. Liverworts are included in :

 
 
 
 

14. Banana bunchy top is caused by :

 
 
 
 

15. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

17. Vascular cryptogam is the term used for :

 
 
 
 

18. Quarantine regulations are concerned with:

 
 
 
 

19. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

21. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

29. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

35. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

48. Rice, pea, potato are :

 
 
 
 

49. Green plants are classified as :

 
 
 
 

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

 
 
 
 

51. Ovary is absent in :

 
 
 
 

52. Embryo formation is not known in :

 
 
 
 

53. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

60. Red rot of sugarcane is caused by :

 
 
 
 

61. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

63. Pythium debaryanum is the causative agent of:

 
 
 
 

64. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

65. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

67. Multicellular and jacketed sex organs are found in :

 
 
 
 

68. Maximum diversity of life forms occurs in :

 
 
 
 

69. Etiology includes the study of :

 
 
 
 

70. Club moss and Peat moss belong to:

 
 
 
 

71. Ovules are not found enclosed in ovary in :

 
 
 
 

72. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

84. Gymnosperms could also be called as:

 
 
 
 

85. Vascular tissue is found in :

 
 
 
 

86. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Which of the following is a monocot?

 
 
 
 

90. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Fruits are not found in :

 
 
 
 

96. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

98. Which of the following statements is not correct?

 
 
 
 

99. Mixed cropping helps :

 
 
 
 

100. Leaf spot of groundnut is caused by :

 
 
 
 

101. Which of the following are included in Tracheophyta?

 
 
 
 


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