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1. Leaf spot of groundnut is caused by :

 
 
 
 

2. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

4. Bryophyta have been placed in cryptogams because:

 
 
 
 

5. Mixed cropping helps :

 
 
 
 

6. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Downy mildew disease is caused by :

 
 
 
 

12. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

19. Chief constituents of bordeaux mixture are :

 
 
 
 

20. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

22. Red rot of sugarcane is caused by :

 
 
 
 

23. Disease resistant plant varieties can be produced by :

 
 
 
 

24. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

26. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Pteridophytes are also known as :

 
 
 
 

35. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

37. Cryptogams include :

 
 
 
 

38. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

40. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Oswald Tippo’s classification was based on :

 
 
 
 

49. Club moss is the common name of :

 
 
 
 

50. Which of the following statements is not correct?

 
 
 
 

51. Roots are absent in :

 
 
 
 

52. Ovary is absent in :

 
 
 
 

53. Banana bunchy top is caused by :

 
 
 
 

54. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

56. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Late blight of potato is caused by :

 
 
 
 

64. Small epidermal swellings due to infection are called :

 
 
 
 

65. Liverworts are included in :

 
 
 
 

66. Vascular tissue is found in :

 
 
 
 

67. Smut of maize is caused by :

 
 
 
 

68. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Which among the following is a shrub?

 
 
 
 

76. The disease symptom necrosis refers to :

 
 
 
 

77. Aflatoxin is produced as a product in :

 
 
 
 

78. Maximum diversity of life forms occurs in :

 
 
 
 

79. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

81. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Which of the following is a monocot?

 
 
 
 

87. Seeds are characteristically found in :

 
 
 
 

88. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

90. Fruits are not found in :

 
 
 
 

91. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

93. Gymnosperms could also be called as:

 
 
 
 

94. Embryo formation is not known in :

 
 
 
 

95. Green plants are classified as :

 
 
 
 

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

 
 
 
 

97. Multicellular and jacketed sex organs are found in :

 
 
 
 

98. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Embryophyta includes :

 
 
 
 


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