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1. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

3. Embryo formation is not known in :

 
 
 
 

4. Chief constituents of bordeaux mixture are :

 
 
 
 

5. The disease symptom necrosis refers to :

 
 
 
 

6. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

8. Seeds are characteristically found in :

 
 
 
 

9. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

11. Cryptogams include :

 
 
 
 

12. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Citrus canker is caused by :

 
 
 
 

17. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Green plants are classified as :

 
 
 
 

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

 
 
 
 

22. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Club moss and Peat moss belong to:

 
 
 
 

26. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Embryophyta includes :

 
 
 
 

32. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

34. Maximum diversity of life forms occurs in :

 
 
 
 

35. Vascular tissue is found in :

 
 
 
 

36. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Which of the following does not contain chlorophyll?

 
 
 
 

41. Black rust of wheat is caused by:

 
 
 
 

42. Roots are absent in :

 
 
 
 

43. Oswald Tippo’s classification is:

 
 
 
 

44. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

46. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Which of the following statements is not correct?

 
 
 
 

53. Which among the following is a shrub?

 
 
 
 

54. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

56. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

57. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

59. Fruits are not found in :

 
 
 
 

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

 
 
 
 

61. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

67. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

69. Banana bunchy top is caused by :

 
 
 
 

70. Ovary is absent in :

 
 
 
 

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

 
 
 
 

72. Pythium debaryanum is the causative agent of:

 
 
 
 

73. Multicellular and jacketed sex organs are found in :

 
 
 
 

74. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Aflatoxin is produced as a product in :

 
 
 
 

79. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

81. Woody climbers are known as :

 
 
 
 

82. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

84. Club moss is the common name of :

 
 
 
 

85. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Most primitive embryophytes are placed in :

 
 
 
 

96. Smut of maize is caused by :

 
 
 
 

97. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

99. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

100. Leaf spot of groundnut is caused by :

 
 
 
 

101. Liverworts are included in :

 
 
 
 


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