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By Vijay Wardhan • December 8, 2024

1. Roots are absent in :

 
 
 
 

2. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

4. Rice, pea, potato are :

 
 
 
 

5. Seeds are characteristically found in :

 
 
 
 

6. Etiology includes the study of :

 
 
 
 

7. Which of the following is a monocot?

 
 
 
 

8. Club moss is the common name of :

 
 
 
 

9. Quarantine regulations are concerned with:

 
 
 
 

10. Ovules are not found enclosed in ovary in :

 
 
 
 

11. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

16. Green plants are classified as :

 
 
 
 

17. Multicellular and jacketed sex organs are found in :

 
 
 
 

18. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

20. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

21. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

23. Which one of the following is a monocot?

 
 
 
 

24. Citrus canker is caused by :

 
 
 
 

25. Most primitive embryophytes are placed in :

 
 
 
 

26. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which of the following does not contain chlorophyll?

 
 
 
 

30. Maximum diversity of life forms occurs in :

 
 
 
 

31. The disease symptom necrosis refers to :

 
 
 
 

32. Red rot of sugarcane is caused by :

 
 
 
 

33. Liverworts are included in :

 
 
 
 

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

 
 
 
 

35. Ergot is obtained from :

 
 
 
 

36. Fruits are not found in :

 
 
 
 

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

 
 
 
 

38. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

40. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

52. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Vascular tissue is found in :

 
 
 
 

59. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

61. Pteridophytes are also known as :

 
 
 
 

62. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

67. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

69. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

75. Disease resistant plant varieties can be produced by :

 
 
 
 

76. Ovary is absent in :

 
 
 
 

77. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Embryophyta includes :

 
 
 
 

82. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

91. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

97. Cryptogams include :

 
 
 
 

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

 
 
 
 

99. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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