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1. Fruits are not found in :

 
 
 
 

2. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

4. Maximum diversity of life forms occurs in :

 
 
 
 

5. Vascular cryptogam is the term used for :

 
 
 
 

6. Downy mildew disease is caused by :

 
 
 
 

7. Red rot of sugarcane is caused by :

 
 
 
 

8. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

9. Seeds are characteristically found in :

 
 
 
 

10. Which of the following are included in Tracheophyta?

 
 
 
 

11. Small epidermal swellings due to infection are called :

 
 
 
 

12. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

18. Citrus canker is caused by :

 
 
 
 

19. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

21. Gymnosperms could also be called as:

 
 
 
 

22. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Ovary is absent in :

 
 
 
 

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

 
 
 
 

40. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

42. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

50. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

52. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

54. Which of the following is a monocot?

 
 
 
 

55. Aflatoxin is produced as a product in :

 
 
 
 

56. The disease symptom necrosis refers to :

 
 
 
 

57. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

59. Oswald Tippo’s classification is:

 
 
 
 

60. Spermatophyta are characterized by producing:

 
 
 
 

61. Chief constituents of bordeaux mixture are :

 
 
 
 

62. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Disease resistant plant varieties can be produced by :

 
 
 
 

66. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

68. Embryophyta includes :

 
 
 
 

69. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Green plants are classified as :

 
 
 
 

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

 
 
 
 

75. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Banana bunchy top is caused by :

 
 
 
 

82. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Roots are absent in :

 
 
 
 

89. Club moss is the common name of :

 
 
 
 

90. Multicellular and jacketed sex organs are found in :

 
 
 
 

91. Club moss and Peat moss belong to:

 
 
 
 

92. Leaf spot of groundnut is caused by :

 
 
 
 

93. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Etiology includes the study of :

 
 
 
 

98. Red rot of sugarcane is caused by :

 
 
 
 

99. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

101. Ergot is obtained from :

 
 
 
 


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