agriculture MCQs – Page 49

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 Review each marked answer and report any item that may be outdated or unclear.

961. When the course of water is blocked at some places if is called___________________?
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A. Head works

B. Lake

C. River

D. Dam

962. A condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________?
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A. Leucoplast

B. Chromoplast

C. Chlorosis

D. Chromoplast

963. 2,4-d is synthetic herbicide derived from_______________?
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A. Auxins

B. Cytokmins

C. Amino acid

D. Valine

964. A gas produced by anaerobic decomposition of organic compounds is called as_________________?
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A. CO<sub>2</sub>

B. Methane

C. Ethane

D. Ammonia

965. Green revolution came into being due to evolution of_________________?
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A. All the above

B. Cotton varieties

C. Sugarcane varieties

D. Wheat varieties
966. Simple plains that lack photosynthesis pigments are called as_________________?
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A. None of the above

B. Bacteria

C. Fungi

D. Virus

967. In rice, high silicon content, in shoot confers resistance to_________________?
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A. All the above

B. Stem borer

C. Leaf borer

D. Root borer

968. There is________________?
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A. 47560 Sq ft in an acre

B. 43560 Sq ft in an acre

C. 40560 Sq ft in an acre

D. 46560 Sq ft in an acre

969. The available form of nitrogen for plants is_________________?
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A. NO<sub>3</sub>

B. NH<sub>4</sub>

C. Both a and b

D. non of these

970. Conducting experiments in glasses is called________________?
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A. In-sin

B. Invivo

C. In-ova

D. Invitro
971. The major source of foreign exchange earning is________________?
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A. Sugarcane

B. Wheat

C. Jute

D. Cotton
972. Partially decomposed organic matter is termed as___________________?
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A. All the above

B. Composet

C. Farm yard manure

D. Humus

973. Integrated pest management involves________________?
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A. Only biological method

B. Chemical and cultural method

C. Only chemical control method

D. Chemical, cultural, and biological method
974. Number of crops grown on the same piece of land in a year and expressed in percentage is known as_______________?
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A. Cropping pattern

B. Crop rotation

C. Cropping index

D. Cropping intensity

975. Mutual association between fungi and roots of plants is known as_________________?
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A. Rhizospher

B. Mycorrhizae

C. None of the above

D. Root fungi

976. Foliar application of nitrogen means applying nitrogen in solution form to___________________?
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A. Leaves

B. Stem only

C. Flowers only

D. Whole plant

977. Electrolytes leakage is defendant on_________________?
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A. Condition of cell membrane

B. Cracking of seed test

C. Both a & b

D. None of the above

978. Low soil pH is the indication of_______________?
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A. High N and S

B. Low N and Ca

C. High Mg and Ca

D. Moderate Mg and Ca

979. Hitting the seed with force against a hard surface to break seed dormancy is called_______________?
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A. Scarification

B. Abrasion

C. Stratification

D. Impaction
980. Organic farming, is a copping system in which__________________?
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A. Fertilizers and pesticides are net used

B. Green manuring

C. Farm yard manure r not used

D. Fertilizers and pesticides are widely used