by

1. Fruits are not found in :

 
 
 
 

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

 
 
 
 

3. Roots are absent in :

 
 
 
 

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

 
 
 
 

5. Seeds are characteristically found in :

 
 
 
 

6. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

8. Ovary is absent in :

 
 
 
 

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

 
 
 
 

10. Gymnosperms could also be called as:

 
 
 
 

11. Woody climbers are known as :

 
 
 
 

12. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

17. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Multicellular and jacketed sex organs are found in :

 
 
 
 

22. Oswald Tippo’s classification is:

 
 
 
 

23. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Aflatoxin is produced as a product in :

 
 
 
 

28. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

30. Green plants are classified as :

 
 
 
 

31. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

33. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Which one of the following is a monocot?

 
 
 
 

40. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

42. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Liverworts are included in :

 
 
 
 

46. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Chief constituents of bordeaux mixture are :

 
 
 
 

55. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

57. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Mixed cropping helps :

 
 
 
 

61. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Oswald Tippo’s classification was based on :

 
 
 
 

65. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Club moss is the common name of :

 
 
 
 

69. Pteridophytes are also known as :

 
 
 
 

70. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

71. Which of the following does not contain chlorophyll?

 
 
 
 

72. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

74. Smut of maize is caused by :

 
 
 
 

75. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

77. Which among the following is a shrub?

 
 
 
 

78. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

83. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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. Club moss and Peat moss belong to:

 
 
 
 

87. Which of the following is a monocot?

 
 
 
 

88. Black rust of wheat is caused by:

 
 
 
 

89. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

91. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

96. Vascular tissue is found in :

 
 
 
 

97. Red rot of sugarcane is caused by :

 
 
 
 

98. Cryptogams include :

 
 
 
 

99. Downy mildew disease is caused by :

 
 
 
 

100. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 


Leave a Comment