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1. Mixed cropping helps :

 
 
 
 

2. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Rice, pea, potato are :

 
 
 
 

9. Embryophyta includes :

 
 
 
 

10. Which of the following are included in Tracheophyta?

 
 
 
 

11. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Woody climbers are known as :

 
 
 
 

15. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Vascular tissue is found in :

 
 
 
 

20. Roots are absent in :

 
 
 
 

21. Multicellular and jacketed sex organs are found in :

 
 
 
 

22. Embryo formation is not known in :

 
 
 
 

23. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

29. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

30. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

32. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

34. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

39. Most primitive embryophytes are placed in :

 
 
 
 

40. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Citrus canker is caused by :

 
 
 
 

49. Fruits are not found in :

 
 
 
 

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

 
 
 
 

51. Red rot of sugarcane is caused by :

 
 
 
 

52. Green plants are classified as :

 
 
 
 

53. Downy mildew disease is caused by :

 
 
 
 

54. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Vascular cryptogam is the term used for :

 
 
 
 

59. Banana bunchy top is caused by :

 
 
 
 

60. Pythium debaryanum is the causative agent of:

 
 
 
 

61. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

63. Aflatoxin is produced as a product in :

 
 
 
 

64. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

65. Liverworts are included in :

 
 
 
 

66. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

67. Which of the following does not contain chlorophyll?

 
 
 
 

68. Spermatophyta are characterized by producing:

 
 
 
 

69. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

71. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

73. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

78. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

80. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

82. Chief constituents of bordeaux mixture are :

 
 
 
 

83. Late blight of potato is caused by :

 
 
 
 

84. Which of the following is a monocot?

 
 
 
 

85. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

93. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

95. Small epidermal swellings due to infection are called :

 
 
 
 

96. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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