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Fungal Diseases of Crops for GATE

Questions about fungal pathogens causing diseases in important crops including wheat, rice, barley, apple, coffee, and citrus. Covers identification of fungal species and their associated plant diseases.

8 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Botrytis cinerea causes the _________ disease in coffee.

  1. warty berry
  2. thread blight
  3. tip blast
  4. pink leaf
  5. leaf spot
Question 2 Multiple Choice (Single Answer)

Which of the following pairs of ‘Triticum disease: causing fungal species’ is not correctly matched?

  1. Aureobasidium decay : Microdochium bolleyi
  2. Downy mildew : Sclerophthora macrospora
  3. Dwarf bunt : Tilletia controversa
  4. Yellow rust : Hymenula cerealis
  5. Ergot : Sphacelia segetum
Question 3 Multiple Choice (Single Answer)

Which of the following pairs presents the ‘fly speck disease’ causing pathogens in citrus?

  1. Ashbya gossypii, Nematospora coryli
  2. Schizothyrium pomi, Zygophiala jamaicensis
  3. Pythium vexans, Rhizoctonia solani
  4. Pythium vexans, Schizothyrium pomi
  5. Ashbya gossypii, Zygophiala jamaicensis
Question 4 Multiple Choice (Single Answer)

‘Marsonia blotch’ disease of apple is caused by a fungal species. The causing fungi are

P. Diplocarpon mali
Q. Marsonia coronaria
R. Mucor piriformis
S. Nectria galligena

  1. Only P and Q
  2. Only Q and R
  3. Only R and S
  4. P, Q and R
  5. Q, R and S
Question 5 Multiple Choice (Single Answer)

In citrus, aerolate leaf spot is caused by

  1. Altemaria altemata
  2. Altemaria tenuis
  3. Aspergillus flavus
  4. Rhizoctonia solani
  5. Aspergillus niger
Question 6 Multiple Choice (Single Answer)

Match the apple diseases in List - A with causing fungal pathogens in List - B and select the correct answer using the codes given below the lists.

 
List - A 
        </strong>|<strong>List - B</strong>|

|A. Cotton root rot|1. Gymnosporangium clavipes|
|B. Coral spot|2. Phymatotrichum omnivorum|
|C. Silver leaf|3. Chondrostereum purpureum|
|D. Quince rust|4. Gymnosporangium yamadae|
| |5. Tubercularia vulgaris|

  1. A - 2, B - 4, C - 3, D - 5
  2. A - 1, B - 2, C - 3, D - 1
  3. A - 2, B - 5, C - 3, D - 1
  4. A - 4, B - 5, C - 1, D - 2
  5. A - 1, B - 2, C - 5, D - 4
Question 7 Multiple Choice (Single Answer)

Which of the following diseases are caused by fungal pathogens only in barley?

P. Kernel blight
Q. Anthracnose
R. Dwarf bunt
S. Leaf rust
T. Basal glume rot

  1. Only P and Q
  2. Only Q and R
  3. Only R and S
  4. P, R and T
  5. Q, R and S
Question 8 Multiple Choice (Single Answer)

Match the rice diseases in Group - I with the causing microbes in Group - II.

 
Group - I 
        </strong>|<strong>Group - II</strong>|

|P. Black kernel rot|1. Gaeumannomyces graminis|
|Q. Leaf scald|2. Lasiodiplodia theobromae|
|R. Crown sheath rot|3. Drechslera gigantea|
|S. Eyespot|4. Rhynchosporium oryzae|

  1. P - 2, Q - 4, R - 1, S - 3
  2. P - 2, Q - 1, R - 4, S - 3
  3. P - 3, Q - 4, R - 1, S - 2
  4. P - 4, Q - 1, R - 2, S - 3
  5. P - 3, Q - 4, R - 2, S - 1
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