Plant Pathology MCQs Set X


The quiz is designed to assess your understanding about the Plant Pathology. These MCQss is prepared by the professors of Plant pathology department and very much helpful for CSS, PMS, NTS, PPSC, FPSC, SPSC, lecturer, GRE Subject and all other competitive examinations. Choose the best answer from four given options. The answer keys is given at the end of the test


Plant Pathology MCQs Set X

Select one option out of four given options

  1. Late Blight of potato causes ____________ loss in world potato production




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  3. Most fungal diseases spread out in ____________




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  5. Bordeaux Mixture is mixed with a ratio of____________ for the control Down by mildew of grapes.




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  7. Bordeaux Mixture was discovered in ____________




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  9. Sweet potatoes affected by soft rot give ____________ smell.




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  11. Peach leaf curl was first originated from ____________




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  13. Erysiphe graminis over summer on ____________




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  15. Bacteria reproduce asexually by means of




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  17. Bacteria are surviving in hot water streams even at




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  19. Rod shaped, filamentous and straight bacteria are known as




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  21. Larger, hardy resistant and physiologically dormant cells of bacteria are called




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  23. _______type of bacteria have a cluster of flagella on each end.




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  25. Fusarium oxysporum causes in many crops.




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  27. Which one of the following is a phanerogamic parasite




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  29. Mycoplasma are prokaryotes which lack




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  31. Bacteria cause in human being.




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  33. Erwinia carotovora causes




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  35. A biotype is




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  37. About ____________ species of higher plants live parasitically on other plants.




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  39. Bordeaux mixture was discovered by Millardet in ___________




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  41. ____________appendages are rigid with curled tips




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  43. In Uncinula sp. ____________ type of appendages present




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  45. Alkaloid which are poison for man and animals are produced by




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  47. Truffles are




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  49. Mushrooms are a member of




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  51. Basidiocarp is a




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  53. Amanita phalloides is




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  55. Teliospores are produced in




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  57. How many basidiospores are produced in uredinales (Rust-fungi)




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  59. If the oldest conidia lies at the top and youngest conidia at the base then this arrangement of conidia is said to be




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  61. The portion of basidiurn between metabasidium and basidiospores is ____________.




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  63. Which division of fungi is also considered to be protista rather than fungi.




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  65. Production of Zoospores is characterized to




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  67. When the hapIoid thallus alternates with the diploid it is known as




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  69. Damping off diseases are caused by the members of family.




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  71. Albugo candida causes




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  73. Thick walled sexual resting spores are referred as




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  75. Conidiophore cemented together and forming an elongated spore bearing structure is called




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  77. The family ____________ includes ascomycetous yeast




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  79. Aspergillus niger is also known as




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  81. Aflatoxin which causes turkey X- disease was discovered in




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  83. Members of family Erysiphaceae cause Group of diseases i.e.




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  85. Erysiphe polygoni causes powdery mildew of




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  87. Homothailic are the fungi in which Sexual reproduction takes places on




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  89. In the process of fission mother cell is divided into daughter cells.




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  91. Motile spores are known as




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  93. Sex nucleus that fuses with another in Sexual reproduction is known




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  95. Piano gametic copulation takes place between two morphologically ___________ gametes.




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  97. ___________ are the organisms which obtain their food from dead organic matter.




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  99. Late blight of potato and tomato cause lasses




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  101. In case of late blight of potato and tomato, the first sign appear on the leaves with




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  103. In case of late blight of potato, optimum temperature for the formation of zoospores




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  105. Albugo candida cause white rust disease mostly on




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  107. Green ear disease of Bajra in wide spread throughout the word especially




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  109. In case of the disease green ear disease of Bajra optimum temperature for the formation of conidia




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  111. Soft rot of sweet potato caused by the fungus




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  113. The fungus Rhizopus stolnifer include in the family




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  115. In the disease cycle of soft rot of sweet potato the cork cambium formation takes place at relative humidity




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  117. Peach leaf curl disease caused by Taphrina deformans include in the class a.




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  119. For the control of peach leaf curl disease Bordeaux mixture is used in the ratio




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  121. Apple scab was first of all reported in the year




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  123. Ascospoces are usually disseminated by




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  125. Temperature favourable for the growth of the fungus is between




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  127. The fungus venturia inaequalis included in the subclass




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  129. Ergot is a disease which effects only the




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  131. In septoria leaf spot of wheat, the earliest symptom appears on the leaves in the farm of mottling of the




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  133. Early blight of potato and tomato is caused by




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  135. In case of gram wilt the maximum temperature for the growth of the fungus is




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  137. Loose smut of wheat is caused by the fungu




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  139. Covered smut of oat can be controlled by seed dressing fungicide vitavax at the rate of




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  141. Powdery mildew is known to occur on cucurbits since the year




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  143. Downy mildew of cucurbits is caused by the fungus




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  145. The agent responsivle for inciting aliment or suffering or damage is a




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  147. Hypersensitivity is an extreme degree of




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  149. The diseases which occur a very irregular internals and locations.




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  151. The true bacteria are




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  153. is the infectious components of virus practical.




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  155. Viruses produce symptoms similar to those of




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  157. Black wart disease of potato is caused by




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  159. The famous irish famine of 1845 -46 was due largely to the failure of potato crop with disease




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  161. Early blight of potato is a disease




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  163. Wilting is favoured by




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  165. Macrophomina phasolina causes;




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  167. Potato leaf roll virus is a;




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  169. To control the insect vectors of viruses, spray of systemic insecticides is recommended such as;




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  171. Potato phyllody is caused by ;




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  173. Species of pythium generally attack plants in their --------- state.




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  175. Heavy application of urea to the nursery soil has proved highly effective against.




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  177. Septoria lycopersici (the cause of septoria leaf blight of tomato) belongs to




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  179. There are two vascular wilt diseases in tomato, one caused by fusarium oxysporum




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  181. Fusarium wilt of tomato is a diseases




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  183. Often ----------------- help in infection by fusarium, hence these pathogens should be controlled




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  185. Big bud of tomato is caused by a virus - like agent which is transmitted by




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  187. Necrosis of tender twigs from the tip backwards, entire top of plant may wither away. These symptoms indicate .




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  189. Die Back of chillies is caused by




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  191. Erysiphe polygoni caused




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  193. Often the size of cells is increased. This is called




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  195. Mosaic is observed on leaves




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  197. Fungi causing rusts and downy and powdery mildews are typical examples of;




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