Plant Pathology MCQ Question and Answer | Agriculture MCQ Question Page-7 section-2

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61.
The largest group of virus is

A. Closteroviridae

B. Comoviridae

C. Geminiviridae

D. Lipoviridae

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62.
Complete girdling ultimately kills the tree due to

A. Starvation of root

B. Stoppage of photosynthesis

C. Non-movement of minerals

D. Non-movement of water

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63.
In aerobic respiration one glucose produces

A. 8 NADH + 2 FADH₂+ 2 ATP

B. 12NADH + 2 FADH₂+ 38 ATP

C. 12 NADH + 30 ATP +H₂O

D. 10 NADH + 2 FADH₂ + 2 ATP + 2 GTP

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64.
In plants. nitrate is reduced to ammonia state in two steps. In second step. electrons are donated by

A. Nitrate reductase

B. Nitrite reductase

C. Ferredoxin

D. Cytochrome b₅

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65.
Which one of the following is the primary source of inoculum for stem rust of water for southern and central India

A. Uredospores produced in Nilgiri and Palney hills during off season of the crop

B. Uredospores produced on wild grasses in the plain

C. Aeciospores produced on alternate host Berberis in Himalaya

D. Teliospores produced on previous wheat crop

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66.
The Bordeaux mixture was first time used for the control of

A. Downey mildew of grape vines

B. Powdery mildew of pea

C. Red rot of sugarcane

D. Damping off of pea

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67.
Causal organism of smut of bajra is

A. Hymenochaete noxia

B. Usilago penicillariae

C. Ustilago segetum

D. Tolyposporium penicillariae

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68.
PS II performs

A. Reduction of CO₂

B. Photolysis of water

C. Liberation of energy

D. Formation of water

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69.
Rate of transpiration is related to

A. Light, temperature and wind

B. Light and temperature

C. Soil and temperature

D. Light, temperature, atmospheric humidity and wind

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70.
Phenyl mercuric acetate

A. Reduces transpiration

B. Reduces photosynthesis

C. Decreases water absorption

D. Kills the plant

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Plant Pathology MCQ Question and Answer | Agriculture MCQ Question

61. The largest group of virus is

Answer & Solution

62. Complete girdling ultimately kills the tree due to

Answer & Solution

63. In aerobic respiration one glucose produces

Answer & Solution

64. In plants. nitrate is reduced to ammonia state in two steps. In second step. electrons are donated by

Answer & Solution

65. Which one of the following is the primary source of inoculum for stem rust of water for southern and central India

Answer & Solution

66. The Bordeaux mixture was first time used for the control of

Answer & Solution

67. Causal organism of smut of bajra is

Answer & Solution

68. PS II performs

Answer & Solution

69. Rate of transpiration is related to

Answer & Solution

70. Phenyl mercuric acetate

Answer & Solution

Read More Section(Plant Pathology)

61.
The largest group of virus is

62.
Complete girdling ultimately kills the tree due to

63.
In aerobic respiration one glucose produces

64.
In plants. nitrate is reduced to ammonia state in two steps. In second step. electrons are donated by

65.
Which one of the following is the primary source of inoculum for stem rust of water for southern and central India

66.
The Bordeaux mixture was first time used for the control of

67.
Causal organism of smut of bajra is

68.
PS II performs

69.
Rate of transpiration is related to

70.
Phenyl mercuric acetate