by

1. Seeds are characteristically found in :

 
 
 
 

2. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

4. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Red rot of sugarcane is caused by :

 
 
 
 

9. Liverworts are included in :

 
 
 
 

10. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Chief constituents of bordeaux mixture are :

 
 
 
 

16. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

18. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Rice, pea, potato are :

 
 
 
 

22. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Which of the following are included in Tracheophyta?

 
 
 
 

26. Spermatophyta are characterized by producing:

 
 
 
 

27. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

32. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

34. Pteridophytes are also known as :

 
 
 
 

35. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

37. Late blight of potato is caused by :

 
 
 
 

38. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Which among the following is a shrub?

 
 
 
 

42. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

44. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

46. The disease symptom necrosis refers to :

 
 
 
 

47. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

49. Which of the following is a monocot?

 
 
 
 

50. Cryptogams include :

 
 
 
 

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

 
 
 
 

52. Ergot is obtained from :

 
 
 
 

53. Ovules are not found enclosed in ovary in :

 
 
 
 

54. Citrus canker is caused by :

 
 
 
 

55. Embryophyta includes :

 
 
 
 

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

 
 
 
 

57. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

59. Club moss and Peat moss belong to:

 
 
 
 

60. Disease resistant plant varieties can be produced by :

 
 
 
 

61. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Which one of the following is a monocot?

 
 
 
 

65. Small epidermal swellings due to infection are called :

 
 
 
 

66. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

68. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Fruits are not found in :

 
 
 
 

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

 
 
 
 

73. Ovary is absent in :

 
 
 
 

74. Green plants are classified as :

 
 
 
 

75. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Vascular tissue is found in :

 
 
 
 

80. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Leaf spot of groundnut is caused by :

 
 
 
 

84. Vascular cryptogam is the term used for :

 
 
 
 

85. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

87. Oswald Tippo’s classification was based on :

 
 
 
 

88. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Black rust of wheat is caused by:

 
 
 
 

100. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 


Leave a Comment