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By Vijay Wardhan • December 8, 2024

1. Aflatoxin is produced as a product in :

 
 
 
 

2. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

3. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Disease resistant plant varieties can be produced by :

 
 
 
 

16. Late blight of potato is caused by :

 
 
 
 

17. Which of the following is a monocot?

 
 
 
 

18. Vascular cryptogam is the term used for :

 
 
 
 

19. Club moss is the common name of :

 
 
 
 

20. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

22. Which of the following statements is not correct?

 
 
 
 

23. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

25. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

30. Small epidermal swellings due to infection are called :

 
 
 
 

31. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

33. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

38. Club moss and Peat moss belong to:

 
 
 
 

39. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

41. Embryo formation is not known in :

 
 
 
 

42. Downy mildew disease is caused by :

 
 
 
 

43. Maximum diversity of life forms occurs in :

 
 
 
 

44. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

45. Mixed cropping helps :

 
 
 
 

46. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

53. Green plants are classified as :

 
 
 
 

54. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

56. Which of the following are included in Tracheophyta?

 
 
 
 

57. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

59. Seeds are characteristically found in :

 
 
 
 

60. Which among the following is a shrub?

 
 
 
 

61. Ovules are not found enclosed in ovary in :

 
 
 
 

62. Red rot of sugarcane is caused by :

 
 
 
 

63. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Ovary is absent in :

 
 
 
 

71. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

78. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

83. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

85. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. The disease symptom necrosis refers to :

 
 
 
 

90. Bryophyta have been placed in cryptogams because:

 
 
 
 

91. Red rot of sugarcane is caused by :

 
 
 
 

92. Which one of the following is a monocot?

 
 
 
 

93. Smut of maize is caused by :

 
 
 
 

94. Which of the following does not contain chlorophyll?

 
 
 
 

95. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Roots are absent in :

 
 
 
 


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