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1. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Chief constituents of bordeaux mixture are :

 
 
 
 

7. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

9. Fruits are not found in :

 
 
 
 

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

 
 
 
 

11. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Mixed cropping helps :

 
 
 
 

15. Disease resistant plant varieties can be produced by :

 
 
 
 

16. Green plants are classified as :

 
 
 
 

17. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which of the following does not contain chlorophyll?

 
 
 
 

30. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Etiology includes the study of :

 
 
 
 

35. Late blight of potato is caused by :

 
 
 
 

36. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

38. Oswald Tippo’s classification is:

 
 
 
 

39. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

41. Small epidermal swellings due to infection are called :

 
 
 
 

42. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

44. Which one of the following is a monocot?

 
 
 
 

45. Bryophyta have been placed in cryptogams because:

 
 
 
 

46. Downy mildew disease is caused by :

 
 
 
 

47. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

49. Aflatoxin is produced as a product in :

 
 
 
 

50. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

52. Gymnosperms could also be called as:

 
 
 
 

53. Vascular cryptogam is the term used for :

 
 
 
 

54. Which of the following is a monocot?

 
 
 
 

55. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

57. Liverworts are included in :

 
 
 
 

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

 
 
 
 

59. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

61. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

63. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

65. Ovules are not found enclosed in ovary in :

 
 
 
 

66. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

68. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Embryo formation is not known in :

 
 
 
 

72. Ovary is absent in :

 
 
 
 

73. Club moss and Peat moss belong to:

 
 
 
 

74. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Embryophyta includes :

 
 
 
 

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

 
 
 
 

80. Maximum diversity of life forms occurs in :

 
 
 
 

81. Vascular tissue is found in :

 
 
 
 

82. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Ergot is obtained from :

 
 
 
 

90. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Pteridophytes are also known as :

 
 
 
 

95. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Which among the following is a shrub?

 
 
 
 

99. Cryptogams include :

 
 
 
 

100. Red rot of sugarcane is caused by :

 
 
 
 

101. Spermatophyta are characterized by producing:

 
 
 
 


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