by

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Liverworts are included in :

 
 
 
 

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

 
 
 
 

6. Mixed cropping helps :

 
 
 
 

7. The disease symptom necrosis refers to :

 
 
 
 

8. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Maximum diversity of life forms occurs in :

 
 
 
 

13. Seeds are characteristically found in :

 
 
 
 

14. Most primitive embryophytes are placed in :

 
 
 
 

15. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

17. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

19. Club moss is the common name of :

 
 
 
 

20. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Embryophyta includes :

 
 
 
 

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

 
 
 
 

25. Roots are absent in :

 
 
 
 

26. Etiology includes the study of :

 
 
 
 

27. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

29. Club moss and Peat moss belong to:

 
 
 
 

30. Disease resistant plant varieties can be produced by :

 
 
 
 

31. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Gymnosperms could also be called as:

 
 
 
 

35. Cryptogams include :

 
 
 
 

36. Oswald Tippo’s classification was based on :

 
 
 
 

37. Fruits are not found in :

 
 
 
 

38. Embryo formation is not known in :

 
 
 
 

39. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Banana bunchy top is caused by :

 
 
 
 

44. Multicellular and jacketed sex organs are found in :

 
 
 
 

45. Quarantine regulations are concerned with:

 
 
 
 

46. Pteridophytes are also known as :

 
 
 
 

47. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Which of the following are included in Tracheophyta?

 
 
 
 

57. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

62. Smut of maize is caused by :

 
 
 
 

63. Downy mildew disease is caused by :

 
 
 
 

64. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

66. Small epidermal swellings due to infection are called :

 
 
 
 

67. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

69. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

71. Woody climbers are known as :

 
 
 
 

72. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Which among the following is a shrub?

 
 
 
 

76. Which of the following is a monocot?

 
 
 
 

77. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Bryophyta have been placed in cryptogams because:

 
 
 
 

81. Green plants are classified as :

 
 
 
 

82. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Black rust of wheat is caused by:

 
 
 
 

86. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Which one of the following is a monocot?

 
 
 
 

94. Vascular tissue is found in :

 
 
 
 

95. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 


Leave a Comment