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1. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

3. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

5. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. The disease symptom necrosis refers to :

 
 
 
 

13. Cryptogams include :

 
 
 
 

14. Vascular cryptogam is the term used for :

 
 
 
 

15. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Ergot is obtained from :

 
 
 
 

20. Quarantine regulations are concerned with:

 
 
 
 

21. Most primitive embryophytes are placed in :

 
 
 
 

22. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Which of the following are included in Tracheophyta?

 
 
 
 

29. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

31. Woody climbers are known as :

 
 
 
 

32. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

33. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Club moss and Peat moss belong to:

 
 
 
 

37. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Aflatoxin is produced as a product in :

 
 
 
 

41. Ovary is absent in :

 
 
 
 

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

 
 
 
 

43. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

45. Which one of the following is a monocot?

 
 
 
 

46. Liverworts are included in :

 
 
 
 

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

 
 
 
 

48. Etiology includes the study of :

 
 
 
 

49. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

51. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

53. Which among the following is a shrub?

 
 
 
 

54. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

56. Small epidermal swellings due to infection are called :

 
 
 
 

57. Seeds are characteristically found in :

 
 
 
 

58. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

59. Mixed cropping helps :

 
 
 
 

60. Embryophyta includes :

 
 
 
 

61. Black rust of wheat is caused by:

 
 
 
 

62. Pteridophytes are also known as :

 
 
 
 

63. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Smut of maize is caused by :

 
 
 
 

67. Green plants are classified as :

 
 
 
 

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

 
 
 
 

69. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

71. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

76. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

87. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

89. Chief constituents of bordeaux mixture are :

 
 
 
 

90. Bryophyta have been placed in cryptogams because:

 
 
 
 

91. Multicellular and jacketed sex organs are found in :

 
 
 
 

92. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

99. Oswald Tippo’s classification is:

 
 
 
 

100. Fruits are not found in :

 
 
 
 

101. Pythium debaryanum is the causative agent of:

 
 
 
 


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