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

 
 
 
 

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

 
 
 
 

3. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

5. Quarantine regulations are concerned with:

 
 
 
 

6. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

8. Which of the following statements is not correct?

 
 
 
 

9. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

15. Late blight of potato is caused by :

 
 
 
 

16. Which of the following are included in Tracheophyta?

 
 
 
 

17. Roots are absent in :

 
 
 
 

18. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

20. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Most primitive embryophytes are placed in :

 
 
 
 

24. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

26. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

28. Vascular cryptogam is the term used for :

 
 
 
 

29. Disease resistant plant varieties can be produced by :

 
 
 
 

30. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

32. Gymnosperms could also be called as:

 
 
 
 

33. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

35. Oswald Tippo’s classification was based on :

 
 
 
 

36. Oswald Tippo’s classification is:

 
 
 
 

37. Which among the following is a shrub?

 
 
 
 

38. Which of the following is a monocot?

 
 
 
 

39. Black rust of wheat is caused by:

 
 
 
 

40. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

42. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

49. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

51. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

52. Rice, pea, potato are :

 
 
 
 

53. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

65. Green plants are classified as :

 
 
 
 

66. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

68. Smut of maize is caused by :

 
 
 
 

69. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

70. Fruits are not found in :

 
 
 
 

71. Multicellular and jacketed sex organs are found in :

 
 
 
 

72. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

74. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

76. Etiology includes the study of :

 
 
 
 

77. Which one of the following is a monocot?

 
 
 
 

78. Club moss and Peat moss belong to:

 
 
 
 

79. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Bryophyta have been placed in cryptogams because:

 
 
 
 

87. Red rot of sugarcane is caused by :

 
 
 
 

88. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Citrus canker is caused by :

 
 
 
 

92. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Liverworts are included in :

 
 
 
 

97. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Ovary is absent in :

 
 
 
 

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

 
 
 
 


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