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1. Rice, pea, potato are :

 
 
 
 

2. Multicellular and jacketed sex organs are found in :

 
 
 
 

3. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

5. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

7. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Aflatoxin is produced as a product in :

 
 
 
 

14. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Quarantine regulations are concerned with:

 
 
 
 

25. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

33. Oswald Tippo’s classification was based on :

 
 
 
 

34. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Spermatophyta are characterized by producing:

 
 
 
 

38. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Liverworts are included in :

 
 
 
 

46. Green plants are classified as :

 
 
 
 

47. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

49. Club moss is the common name of :

 
 
 
 

50. Which among the following is a shrub?

 
 
 
 

51. Oswald Tippo’s classification is:

 
 
 
 

52. Citrus canker is caused by :

 
 
 
 

53. Bryophyta have been placed in cryptogams because:

 
 
 
 

54. Fruits are not found in :

 
 
 
 

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

 
 
 
 

56. The disease symptom necrosis refers to :

 
 
 
 

57. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

59. Leaf spot of groundnut is caused by :

 
 
 
 

60. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

62. Cryptogams include :

 
 
 
 

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

 
 
 
 

64. Banana bunchy top is caused by :

 
 
 
 

65. Ovary is absent in :

 
 
 
 

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

 
 
 
 

67. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

69. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Which of the following statements is not correct?

 
 
 
 

73. Late blight of potato is caused by :

 
 
 
 

74. Disease resistant plant varieties can be produced by :

 
 
 
 

75. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Vascular cryptogam is the term used for :

 
 
 
 

79. Maximum diversity of life forms occurs in :

 
 
 
 

80. Which one of the following is a monocot?

 
 
 
 

81. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

94. Embryophyta includes :

 
 
 
 

95. Red rot of sugarcane is caused by :

 
 
 
 

96. Small epidermal swellings due to infection are called :

 
 
 
 

97. Downy mildew disease is caused by :

 
 
 
 

98. Seeds are characteristically found in :

 
 
 
 

99. Club moss and Peat moss belong to:

 
 
 
 

100. Ergot is obtained from :

 
 
 
 

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

 
 
 
 


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