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By Vijay Wardhan • December 8, 2024

1. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

3. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

4. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

6. Etiology includes the study of :

 
 
 
 

7. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Rice, pea, potato are :

 
 
 
 

12. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

14. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

15. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

20. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

25. Vascular cryptogam is the term used for :

 
 
 
 

26. Seeds are characteristically found in :

 
 
 
 

27. Cryptogams include :

 
 
 
 

28. Embryophyta includes :

 
 
 
 

29. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

34. Red rot of sugarcane is caused by :

 
 
 
 

35. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

41. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

42. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

44. Which of the following are included in Tracheophyta?

 
 
 
 

45. Downy mildew disease is caused by :

 
 
 
 

46. Liverworts are included in :

 
 
 
 

47. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

49. Club moss and Peat moss belong to:

 
 
 
 

50. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Aflatoxin is produced as a product in :

 
 
 
 

54. Which of the following is a monocot?

 
 
 
 

55. Embryo formation is not known in :

 
 
 
 

56. Which among the following is a shrub?

 
 
 
 

57. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Which of the following does not contain chlorophyll?

 
 
 
 

61. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

63. Green plants are classified as :

 
 
 
 

64. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Roots are absent in :

 
 
 
 

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

 
 
 
 

73. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

75. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

77. Bryophyta have been placed in cryptogams because:

 
 
 
 

78. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Gymnosperms could also be called as:

 
 
 
 

83. Fruits are not found in :

 
 
 
 

84. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. The disease symptom necrosis refers to :

 
 
 
 

91. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

93. Pteridophytes are also known as :

 
 
 
 

94. Chief constituents of bordeaux mixture are :

 
 
 
 

95. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Late blight of potato is caused by :

 
 
 
 


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