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By Vijay Wardhan • December 8, 2024

1. Ovary is absent in :

 
 
 
 

2. Embryo formation is not known in :

 
 
 
 

3. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

5. Banana bunchy top is caused by :

 
 
 
 

6. Green plants are classified as :

 
 
 
 

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

 
 
 
 

8. Black rust of wheat is caused by:

 
 
 
 

9. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

11. Oswald Tippo’s classification was based on :

 
 
 
 

12. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Gymnosperms could also be called as:

 
 
 
 

31. Red rot of sugarcane is caused by :

 
 
 
 

32. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

33. Oswald Tippo’s classification is:

 
 
 
 

34. Disease resistant plant varieties can be produced by :

 
 
 
 

35. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

42. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

44. Etiology includes the study of :

 
 
 
 

45. Liverworts are included in :

 
 
 
 

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

 
 
 
 

47. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

49. Which of the following does not contain chlorophyll?

 
 
 
 

50. Most primitive embryophytes are placed in :

 
 
 
 

51. Downy mildew disease is caused by :

 
 
 
 

52. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

62. Bryophyta have been placed in cryptogams because:

 
 
 
 

63. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

64. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Which of the following are included in Tracheophyta?

 
 
 
 

69. Ergot is obtained from :

 
 
 
 

70. Which of the following statements is not correct?

 
 
 
 

71. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

76. Cryptogams include :

 
 
 
 

77. Fruits are not found in :

 
 
 
 

78. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Club moss is the common name of :

 
 
 
 

82. Pythium debaryanum is the causative agent of:

 
 
 
 

83. Small epidermal swellings due to infection are called :

 
 
 
 

84. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

86. Late blight of potato is caused by :

 
 
 
 

87. Embryophyta includes :

 
 
 
 

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

 
 
 
 

89. Vascular cryptogam is the term used for :

 
 
 
 

90. Aflatoxin is produced as a product in :

 
 
 
 

91. Which of the following is a monocot?

 
 
 
 

92. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

94. Maximum diversity of life forms occurs in :

 
 
 
 

95. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Rice, pea, potato are :

 
 
 
 

100. Club moss and Peat moss belong to:

 
 
 
 

101. Quarantine regulations are concerned with:

 
 
 
 


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