agriculture MCQs – Page 179

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

3561. The experimental design which control fertility level in two directions is known as________________?
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A. RBD

B. LSD

C. SPD

D. AD

3562. The allelochemicals are broadly classified as_______________?
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A. Phenolics and. terpenoids

B. Trytophan

C. non of there

D. Cytokinin and ethylene

3563. Plants having no defined limits of vegetative and reproductive element is called______________?
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A. Absolute growth

B. Assimilation

C. Determinate growth

D. Indeterminate growth

3564. Among the cotton exporting countries the number of China is________________?
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A. 4th

B. 2nd

C. 3rd

D. 1st

3565. Mg in plants act as___________________?
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A. Protein activator

B. Enzyme activator

C. Starch activator

D. None of the above

3566. Gaseous loss of a substance from the soil or from fertilizer or manure is called_________________?
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A. Evaporation

B. Evapotranspiration

C. Volatilization

D. Transpiration

3567. Annual rye grass releases a chemical through its root that prevents________________?
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A. Crop seeds

B. weed seed

C. Both a and b

D. non of these

3568. The ratio of treatment variance to error variance is known as_________________?
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A. I-value

B. Critical difference

C. F-value

D. Correlation

3569. Ratio of crop yield to the amount of water utilized is called______________?
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A. Soil water use

B. Crop water use efficiency

C. Soil plant water relationship

D. Water intensity

3570. Tillage is field operation which help in cutting, loosening and inverting the soil for_________________?
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A. Seed bed preparation

B. Transplantation

C. Irrigation

D. Fertilization

3571. Root rot of cotton is a_________________?
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A. Fungal disease

B. Viral disease

C. Bacterial disease

3572. The control and preservation of natural resources For present and future use is_________________?
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A. Environment

B. Biodiversity

C. Substainability

D. Conservation

3573. The enzyme responsible for biological nitrogen fixation is________________?
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A. Lipase

B. Nitrogenase

C. Isomerase

D. Kinease

3574. The actual amount H2O present in the air is called_____________?
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A. Relative humidity

B. Absolute humidity

C. Both A and B

D. non of these

3575. Which one of the following is C4 plain_________________?
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A. Sugarcane

B. Make

C. All the above

D. Sorghum

3576. One rooting hormone occurring naturally in plant is ___________________?
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A. Naphthalene acetic acid

B. Indolebutyric

C. None of the above

D. Indolacetic acid

3577. Primary air polluted is________________?
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A. SO3

B. SO2

C. None

D. SO4

3578. Allelochemicals are used as growth regulators and natural pesticides to promote__________________?
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A. Sustainable agriculture

B. Improve agriculture

C. Both a and b

3579. A process in which most of the organisms are killed is known as_________________?
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A. Pasteurization

B. Heating

C. Neutralization

D. Sterilization

3580. Crop rotation means growing_________________?
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A. Growing green manures

B. Growing different crops

C. Same craps

D. Growing fodder crops

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