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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

6. Oswald Tippo’s classification was based on :

 
 
 
 

7. Which of the following statements is not correct?

 
 
 
 

8. Downy mildew disease is caused by :

 
 
 
 

9. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Oswald Tippo’s classification is:

 
 
 
 

13. Multicellular and jacketed sex organs are found in :

 
 
 
 

14. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

19. Gymnosperms could also be called as:

 
 
 
 

20. Which of the following are included in Tracheophyta?

 
 
 
 

21. Chief constituents of bordeaux mixture are :

 
 
 
 

22. Club moss is the common name of :

 
 
 
 

23. Embryo formation is not known in :

 
 
 
 

24. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

31. Red rot of sugarcane is caused by :

 
 
 
 

32. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

33. Mixed cropping helps :

 
 
 
 

34. Embryophyta includes :

 
 
 
 

35. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

39. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

41. Liverworts are included in :

 
 
 
 

42. Small epidermal swellings due to infection are called :

 
 
 
 

43. The disease symptom necrosis refers to :

 
 
 
 

44. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

58. Which among the following is a shrub?

 
 
 
 

59. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

65. Spermatophyta are characterized by producing:

 
 
 
 

66. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

68. Fruits are not found in :

 
 
 
 

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

 
 
 
 

70. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

72. Most primitive embryophytes are placed in :

 
 
 
 

73. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Vascular tissue is found in :

 
 
 
 

77. Which one of the following is a monocot?

 
 
 
 

78. Ovary is absent in :

 
 
 
 

79. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Rice, pea, potato are :

 
 
 
 

83. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

85. Citrus canker is caused by :

 
 
 
 

86. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

88. Roots are absent in :

 
 
 
 

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

 
 
 
 

90. Which of the following does not contain chlorophyll?

 
 
 
 

91. Bryophyta have been placed in cryptogams because:

 
 
 
 

92. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

94. Green plants are classified as :

 
 
 
 

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

 
 
 
 

96. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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