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By Vijay Wardhan • December 8, 2024

1. Rice, pea, potato are :

 
 
 
 

2. Maximum diversity of life forms occurs in :

 
 
 
 

3. Late blight of potato is caused by :

 
 
 
 

4. Oswald Tippo’s classification is:

 
 
 
 

5. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

7. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

15. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Ergot is obtained from :

 
 
 
 

19. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Liverworts are included in :

 
 
 
 

23. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

25. Oswald Tippo’s classification was based on :

 
 
 
 

26. Pythium debaryanum is the causative agent of:

 
 
 
 

27. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

32. Leaf spot of groundnut is caused by :

 
 
 
 

33. Which of the following statements is not correct?

 
 
 
 

34. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

36. Chief constituents of bordeaux mixture are :

 
 
 
 

37. Red rot of sugarcane is caused by :

 
 
 
 

38. Club moss is the common name of :

 
 
 
 

39. Embryophyta includes :

 
 
 
 

40. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Ovules are not found enclosed in ovary in :

 
 
 
 

45. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Banana bunchy top is caused by :

 
 
 
 

57. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

59. Etiology includes the study of :

 
 
 
 

60. Ovary is absent in :

 
 
 
 

61. Which of the following is a monocot?

 
 
 
 

62. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Spermatophyta are characterized by producing:

 
 
 
 

70. Mixed cropping helps :

 
 
 
 

71. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

73. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

79. Seeds are characteristically found in :

 
 
 
 

80. Gymnosperms could also be called as:

 
 
 
 

81. Small epidermal swellings due to infection are called :

 
 
 
 

82. Embryo formation is not known in :

 
 
 
 

83. Green plants are classified as :

 
 
 
 

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

 
 
 
 

85. Roots are absent in :

 
 
 
 

86. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Club moss and Peat moss belong to:

 
 
 
 

91. Black rust of wheat is caused by:

 
 
 
 

92. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Aflatoxin is produced as a product in :

 
 
 
 

96. Fruits are not found in :

 
 
 
 

97. Bryophyta have been placed in cryptogams because:

 
 
 
 

98. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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