by

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

 
 
 
 

2. Most primitive embryophytes are placed in :

 
 
 
 

3. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

5. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

11. Citrus canker is caused by :

 
 
 
 

12. Spermatophyta are characterized by producing:

 
 
 
 

13. Cryptogams include :

 
 
 
 

14. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Black rust of wheat is caused by:

 
 
 
 

23. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Smut of maize is caused by :

 
 
 
 

27. Disease resistant plant varieties can be produced by :

 
 
 
 

28. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

30. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

36. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

37. Maximum diversity of life forms occurs in :

 
 
 
 

38. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

40. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

42. Which of the following are included in Tracheophyta?

 
 
 
 

43. Liverworts are included in :

 
 
 
 

44. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Which of the following does not contain chlorophyll?

 
 
 
 

49. Club moss is the common name of :

 
 
 
 

50. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

52. Late blight of potato is caused by :

 
 
 
 

53. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

55. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

60. Pteridophytes are also known as :

 
 
 
 

61. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

63. Green plants are classified as :

 
 
 
 

64. Etiology includes the study of :

 
 
 
 

65. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Which among the following is a shrub?

 
 
 
 

70. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

72. Banana bunchy top is caused by :

 
 
 
 

73. Red rot of sugarcane is caused by :

 
 
 
 

74. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

76. Fruits are not found in :

 
 
 
 

77. Pythium debaryanum is the causative agent of:

 
 
 
 

78. Leaf spot of groundnut is caused by :

 
 
 
 

79. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

81. Mixed cropping helps :

 
 
 
 

82. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

84. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

86. Ovary is absent in :

 
 
 
 

87. Vascular tissue is found in :

 
 
 
 

88. Which one of the following is a monocot?

 
 
 
 

89. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

95. Roots are absent in :

 
 
 
 

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

 
 
 
 

97. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


Leave a Comment