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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Smut of maize is caused by :

 
 
 
 

9. Citrus canker is caused by :

 
 
 
 

10. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Vascular tissue is found in :

 
 
 
 

14. Woody climbers are known as :

 
 
 
 

15. Bryophyta have been placed in cryptogams because:

 
 
 
 

16. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Oswald Tippo’s classification was based on :

 
 
 
 

23. Pteridophytes are also known as :

 
 
 
 

24. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

26. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

28. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Which one of the following is a monocot?

 
 
 
 

32. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

34. Ovules are not found enclosed in ovary in :

 
 
 
 

35. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

40. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

45. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Small epidermal swellings due to infection are called :

 
 
 
 

50. Rice, pea, potato are :

 
 
 
 

51. Mixed cropping helps :

 
 
 
 

52. Seeds are characteristically found in :

 
 
 
 

53. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

55. Quarantine regulations are concerned with:

 
 
 
 

56. Red rot of sugarcane is caused by :

 
 
 
 

57. Green plants are classified as :

 
 
 
 

58. Ovary is absent in :

 
 
 
 

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

 
 
 
 

60. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

62. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

63. Banana bunchy top is caused by :

 
 
 
 

64. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

66. Late blight of potato is caused by :

 
 
 
 

67. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Liverworts are included in :

 
 
 
 

74. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

76. Cryptogams include :

 
 
 
 

77. Ergot is obtained from :

 
 
 
 

78. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

80. Which of the following is a monocot?

 
 
 
 

81. Etiology includes the study of :

 
 
 
 

82. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

83. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Chief constituents of bordeaux mixture are :

 
 
 
 

89. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Gymnosperms could also be called as:

 
 
 
 

93. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Club moss is the common name of :

 
 
 
 

97. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Pythium debaryanum is the causative agent of:

 
 
 
 


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