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By Vijay Wardhan • December 8, 2024

1. Pythium debaryanum is the causative agent of:

 
 
 
 

2. Gymnosperms could also be called as:

 
 
 
 

3. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Liverworts are included in :

 
 
 
 

7. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Disease resistant plant varieties can be produced by :

 
 
 
 

14. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

16. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Which of the following are included in Tracheophyta?

 
 
 
 

24. Spermatophyta are characterized by producing:

 
 
 
 

25. Roots are absent in :

 
 
 
 

26. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Black rust of wheat is caused by:

 
 
 
 

33. Oswald Tippo’s classification is:

 
 
 
 

34. Ovary is absent in :

 
 
 
 

35. Ovules are not found enclosed in ovary in :

 
 
 
 

36. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

38. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

40. Small epidermal swellings due to infection are called :

 
 
 
 

41. Green plants are classified as :

 
 
 
 

42. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

43. Quarantine regulations are concerned with:

 
 
 
 

44. Rice, pea, potato are :

 
 
 
 

45. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

47. Chief constituents of bordeaux mixture are :

 
 
 
 

48. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Club moss and Peat moss belong to:

 
 
 
 

55. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Downy mildew disease is caused by :

 
 
 
 

60. Woody climbers are known as :

 
 
 
 

61. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

63. Club moss is the common name of :

 
 
 
 

64. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Late blight of potato is caused by :

 
 
 
 

70. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

72. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Multicellular and jacketed sex organs are found in :

 
 
 
 

80. Smut of maize is caused by :

 
 
 
 

81. Seeds are characteristically found in :

 
 
 
 

82. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

84. Maximum diversity of life forms occurs in :

 
 
 
 

85. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

86. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Embryophyta includes :

 
 
 
 

91. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

93. Vascular tissue is found in :

 
 
 
 

94. Bryophyta have been placed in cryptogams because:

 
 
 
 

95. Cryptogams include :

 
 
 
 

96. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Fruits are not found in :

 
 
 
 

101. Red rot of sugarcane is caused by :

 
 
 
 


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