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1. Downy mildew disease is caused by :

 
 
 
 

2. Oswald Tippo’s classification was based on :

 
 
 
 

3. Woody climbers are known as :

 
 
 
 

4. Liverworts are included in :

 
 
 
 

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

 
 
 
 

6. Maximum diversity of life forms occurs in :

 
 
 
 

7. Multicellular and jacketed sex organs are found in :

 
 
 
 

8. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

10. Ergot is obtained from :

 
 
 
 

11. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Seeds are characteristically found in :

 
 
 
 

20. Red rot of sugarcane is caused by :

 
 
 
 

21. Pythium debaryanum is the causative agent of:

 
 
 
 

22. Late blight of potato is caused by :

 
 
 
 

23. Ovary is absent in :

 
 
 
 

24. Club moss and Peat moss belong to:

 
 
 
 

25. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

27. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

29. Disease resistant plant varieties can be produced by :

 
 
 
 

30. Small epidermal swellings due to infection are called :

 
 
 
 

31. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

33. Which of the following are included in Tracheophyta?

 
 
 
 

34. Which one of the following is a monocot?

 
 
 
 

35. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Smut of maize is caused by :

 
 
 
 

46. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Banana bunchy top is caused by :

 
 
 
 

52. Rice, pea, potato are :

 
 
 
 

53. Black rust of wheat is caused by:

 
 
 
 

54. Red rot of sugarcane is caused by :

 
 
 
 

55. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

60. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

62. Green plants are classified as :

 
 
 
 

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

 
 
 
 

64. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Pteridophytes are also known as :

 
 
 
 

68. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Citrus canker is caused by :

 
 
 
 

82. Gymnosperms could also be called as:

 
 
 
 

83. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

85. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

94. Oswald Tippo’s classification is:

 
 
 
 

95. Ovules are not found enclosed in ovary in :

 
 
 
 

96. Which of the following is a monocot?

 
 
 
 

97. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

99. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

101. Bryophyta have been placed in cryptogams because:

 
 
 
 


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