by

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

 
 
 
 

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

 
 
 
 

3. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

7. Pteridophytes are also known as :

 
 
 
 

8. Most primitive embryophytes are placed in :

 
 
 
 

9. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

11. Pythium debaryanum is the causative agent of:

 
 
 
 

12. Which of the following is a monocot?

 
 
 
 

13. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Club moss and Peat moss belong to:

 
 
 
 

18. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

23. Embryophyta includes :

 
 
 
 

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

 
 
 
 

25. Ovary is absent in :

 
 
 
 

26. Vascular tissue is found in :

 
 
 
 

27. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Which among the following is a shrub?

 
 
 
 

35. Liverworts are included in :

 
 
 
 

36. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

38. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Embryo formation is not known in :

 
 
 
 

43. Oswald Tippo’s classification was based on :

 
 
 
 

44. Cryptogams include :

 
 
 
 

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

 
 
 
 

46. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

48. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

50. Bryophyta have been placed in cryptogams because:

 
 
 
 

51. Oswald Tippo’s classification is:

 
 
 
 

52. Green plants are classified as :

 
 
 
 

53. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Roots are absent in :

 
 
 
 

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

 
 
 
 

60. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

62. Fruits are not found in :

 
 
 
 

63. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Chief constituents of bordeaux mixture are :

 
 
 
 

69. Banana bunchy top is caused by :

 
 
 
 

70. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

72. Mixed cropping helps :

 
 
 
 

73. Which of the following does not contain chlorophyll?

 
 
 
 

74. Woody climbers are known as :

 
 
 
 

75. Maximum diversity of life forms occurs in :

 
 
 
 

76. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Multicellular and jacketed sex organs are found in :

 
 
 
 

83. Late blight of potato is caused by :

 
 
 
 

84. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Vascular cryptogam is the term used for :

 
 
 
 

92. Ergot is obtained from :

 
 
 
 

93. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

98. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

99. Gymnosperms could also be called as:

 
 
 
 

100. Club moss is the common name of :

 
 
 
 

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

 
 
 
 


Leave a Comment