by

1. Ovules are not found enclosed in ovary in :

 
 
 
 

2. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Embryo formation is not known in :

 
 
 
 

6. Seeds are characteristically found in :

 
 
 
 

7. Ovary is absent in :

 
 
 
 

8. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

10. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

12. Red rot of sugarcane is caused by :

 
 
 
 

13. Cryptogams include :

 
 
 
 

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

 
 
 
 

15. Maximum diversity of life forms occurs in :

 
 
 
 

16. Etiology includes the study of :

 
 
 
 

17. Multicellular and jacketed sex organs are found in :

 
 
 
 

18. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Rice, pea, potato are :

 
 
 
 

22. Woody climbers are known as :

 
 
 
 

23. Disease resistant plant varieties can be produced by :

 
 
 
 

24. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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. Club moss and Peat moss belong to:

 
 
 
 

35. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Smut of maize is caused by :

 
 
 
 

39. Late blight of potato is caused by :

 
 
 
 

40. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Black rust of wheat is caused by:

 
 
 
 

45. Downy mildew disease is caused by :

 
 
 
 

46. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Fruits are not found in :

 
 
 
 

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

 
 
 
 

56. Roots are absent in :

 
 
 
 

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

 
 
 
 

58. Pythium debaryanum is the causative agent of:

 
 
 
 

59. Which of the following does not contain chlorophyll?

 
 
 
 

60. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

62. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Green plants are classified as :

 
 
 
 

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

 
 
 
 

68. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

70. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Gymnosperms could also be called as:

 
 
 
 

77. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

79. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

81. Liverworts are included in :

 
 
 
 

82. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

87. Which of the following is a monocot?

 
 
 
 

88. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

90. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

92. Mixed cropping helps :

 
 
 
 

93. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

94. Vascular cryptogam is the term used for :

 
 
 
 

95. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

97. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

99. Embryophyta includes :

 
 
 
 

100. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 


Leave a Comment