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For students in search of
- Hydroponic Gardening
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Guides - Basics to Experts level
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Growing fruit and vegetables hydroponically
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Practical daily questions or queries of hydroponics lovers
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Current Hydroponics and Indoor Gardening Market Growth as well as Trends
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| 161. |
Tundu disease of what is caused by: |
| A. |
Anguina |
B. |
Corynebacterium |
| C. |
Both (a) & (b) |
D. |
Heterodera |
Answer: Option C
Explanation:
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| 162. |
Who proved that virus could pass through filters with pores small enough to retain bacteria? |
| A. |
Stanley |
B. |
Ivanowski |
| C. |
Mayer |
D. |
Barkley |
Answer: Option B
Explanation:
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| 163. |
Ufra disease of rice is caused by: |
| A. |
Pratylenchus |
B. |
Ditylenchus |
| C. |
Aphelenchoides |
D. |
Heterodera |
Answer: Option B
Explanation:
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| 164. |
Leaf curl of tobacco is caused by: |
| A. |
Nicotina virus Ca-i |
B. |
Nicotina virus-10 |
| C. |
MLO's |
D. |
Viriod |
Answer: Option B
Explanation:
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| 165. |
Uncinuls causes the disease: |
| A. |
Downy mildew |
B. |
Powdery mildew |
| C. |
Blight |
D. |
Wilt |
Answer: Option B
Explanation:
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| 166. |
Used lense for the first time to study micro-organism: |
| A. |
Robert Koch |
B. |
Antony Van Leeuwenhoeck |
| C. |
Louis Pasteur |
D. |
Butler |
Answer: Option B
Explanation:
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| 167. |
Virus is transmitted by nematode: |
| A. |
Globodera |
B. |
Tylenchorhynchus |
| C. |
Angulna |
D. |
Xiphinema |
Answer: Option D
Explanation:
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| 168. |
Who is known as the father of nematology? |
| A. |
N.A. Cobb |
B. |
G.Thorne |
| C. |
F.G.W. Jones |
D. |
De-man |
Answer: Option A
Explanation:
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| 169. |
When bacterial cells are subjected to unfavourable conditions they form: |
| A. |
Oospores |
B. |
Zoospores |
| C. |
Endospores |
D. |
Cyst |
Answer: Option C
Explanation:
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| 170. |
Which are the cellulose attacking fungi at the time of decomposition of organic compound? |
| A. |
Trichoderma, Aspergillus |
B. |
Ganoderma, Psalliotta |
| C. |
Albugo, Puccinia |
D. |
Pythium, Macrophomina |
Answer: Option A
Explanation:
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