Plant Pathology MCQ Question and Answer | Agriculture MCQ Question Page-4 section-4

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31.
Olsen's method, which is used for phosphorus detection method used in soil is

A. All expected sodic soils

B. All expected acidic soils

C. All expected alkali soils

D. None of these

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32.
What is the average size of a bacteria?

A. 0.5 × 1.0 - 1.5μ

B. 0.5 × 100μ

C. 0.2 × 1.6 μ

D. 0.01 × 0.1μ

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33.
Rice blast pathogen perfect stage is

A. Pyricularia oryzae

B. Magnaporthe grisea

C. Helminthosporium

D. Rhizoctonia

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34.
The period between infection and sporulation of pathogen is known as

A. Incubation period

B. Latent period

C. Sedentary period

D. Infection period

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35.
Sequence of Krebs cycle is

A. α-Ketoglutaric acid ⟶ Isocitric acid ⟶ Oxalosuccinic acid

B. Isocitric acid ⟶ Oxalosuccinic acid ⟶ α-Ketoglutaric acid

C. Isocitric acid ⟶ α-Ketoglutaric acid ⟶ Oxalosuccinic acid

D. Oxalosuccinic acid ⟶ Isocitric acid ⟶ α-Ketoglutaric acid

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36.
Anthesis means

A. Growth of pollen tube inside the carpel

B. Dehiscence of anthers

C. Opening of floral bud

D. Emergence of anthers

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37.
Embryoids formed in tissue culture from pollen grain are due to

A. Test tube culture

B. Cellular totipotency

C. Organogenesis

D. Double fertilisation

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38.
Hill reaction occurs in

A. High altitude plants

B. Total darkness

C. Absence of water

D. Presence of ferricyanide

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39.
Common scab of potato can be controlled by reducing pH below 5.2 is caused by the pathogen

A. Streptomyces scabies

B. Streptomyces griseus

C. Erwinia amylovora

D. Streptomyces flaveolus

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40.
How do the common weedicides act?

A. Interfere with respiration

B. Interfere with photosynthesis

C. Defence mechanism is destroyed

D. Causes wilting

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Plant Pathology MCQ Question and Answer | Agriculture MCQ Question

31. Olsen's method, which is used for phosphorus detection method used in soil is

Answer & Solution

32. What is the average size of a bacteria?

Answer & Solution

33. Rice blast pathogen perfect stage is

Answer & Solution

34. The period between infection and sporulation of pathogen is known as

Answer & Solution

35. Sequence of Krebs cycle is

Answer & Solution

36. Anthesis means

Answer & Solution

37. Embryoids formed in tissue culture from pollen grain are due to

Answer & Solution

38. Hill reaction occurs in

Answer & Solution

39. Common scab of potato can be controlled by reducing pH below 5.2 is caused by the pathogen

Answer & Solution

40. How do the common weedicides act?

Answer & Solution

Read More Section(Plant Pathology)

31.
Olsen's method, which is used for phosphorus detection method used in soil is

32.
What is the average size of a bacteria?

33.
Rice blast pathogen perfect stage is

34.
The period between infection and sporulation of pathogen is known as

35.
Sequence of Krebs cycle is

36.
Anthesis means

37.
Embryoids formed in tissue culture from pollen grain are due to

38.
Hill reaction occurs in

39.
Common scab of potato can be controlled by reducing pH below 5.2 is caused by the pathogen

40.
How do the common weedicides act?