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1. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

3. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Rice, pea, potato are :

 
 
 
 

9. Red rot of sugarcane is caused by :

 
 
 
 

10. Downy mildew disease is caused by :

 
 
 
 

11. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

13. Which of the following statements is not correct?

 
 
 
 

14. Which of the following does not contain chlorophyll?

 
 
 
 

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. The smut mycelium which initiates the infection is usually :

 
 
 
 

17. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

19. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Cryptogams include :

 
 
 
 

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

 
 
 
 

30. Fruits are not found in :

 
 
 
 

31. Club moss and Peat moss belong to:

 
 
 
 

32. Oswald Tippo’s classification is:

 
 
 
 

33. Disease resistant plant varieties can be produced by :

 
 
 
 

34. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

35. Mixed cropping helps :

 
 
 
 

36. Oswald Tippo’s classification was based on :

 
 
 
 

37. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

39. Spermatophyta are characterized by producing:

 
 
 
 

40. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

41. Ovules are not found enclosed in ovary in :

 
 
 
 

42. Embryophyta includes :

 
 
 
 

43. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

52. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Multicellular and jacketed sex organs are found in :

 
 
 
 

65. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

67. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

69. Green plants are classified as :

 
 
 
 

70. Most primitive embryophytes are placed in :

 
 
 
 

71. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

73. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

78. Smut of maize is caused by :

 
 
 
 

79. Gymnosperms could also be called as:

 
 
 
 

80. Ovary is absent in :

 
 
 
 

81. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Bryophyta have been placed in cryptogams because:

 
 
 
 

88. The disease symptom necrosis refers to :

 
 
 
 

89. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

91. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

93. Liverworts are included in :

 
 
 
 

94. Which of the following are included in Tracheophyta?

 
 
 
 

95. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

97. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

99. Seeds are characteristically found in :

 
 
 
 

100. Ergot is obtained from :

 
 
 
 

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

 
 
 
 


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