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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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| 31. |
Coffee rust is caused by: |
| A. |
Uromyces hobsoni |
B. |
Hemileia vastatrix |
| C. |
Cronartium ribicola |
D. |
Ravenelia-emblicae |
Answer: Option B
Explanation:
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| 32. |
Conidia and sporangia are the spores produced by: |
| A. |
Bacteria |
B. |
Viruses |
| C. |
Fungi |
D. |
Phanerogams |
Answer: Option C
Explanation:
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| 33. |
Crystalization of viruses has done by: |
| A. |
Mayer |
B. |
Stanley |
| C. |
Iwanowski |
D. |
Bejerinck |
Answer: Option B
Explanation:
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| 34. |
Cysts are formed by: |
| A. |
Meloidogyne |
B. |
Aphelenchoides |
| C. |
Heterodera |
D. |
None of the above |
Answer: Option A
Explanation:
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| 35. |
Death of tissue in virus infected plant described as: |
| A. |
Mottling |
B. |
Mosaic |
| C. |
Necrosis |
D. |
Curling |
Answer: Option B
Explanation:
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| 36. |
Disease symptoms known as phyllidy in sesamum are caused by: |
Answer: Option C
Explanation:
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| 37. |
Dithane M-45 is a: |
| A. |
Bactericide |
B. |
Insecticide |
| C. |
Fungicide |
D. |
Nematicide |
Answer: Option C
Explanation:
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| 38. |
Domestic quarantine exists on: |
| A. |
Rice blast |
B. |
Red rot of sugarcano |
| C. |
Wart of potato |
D. |
Run of wheat |
Answer: Option C
Explanation:
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| 39. |
Downy mildew of maize is caused by: |
| A. |
Peronosclerspora sacchari |
B. |
Peronospora triognella |
| C. |
Sclerospora graminicola |
D. |
Sclerospora sacchari |
Answer: Option A
Explanation:
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| 40. |
Whittaker (1969) proposed a kingdom System of Classification of Micro-organism: |
Answer: Option B
Explanation:
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