agriculture MCQs – Page 215

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 Review each marked answer and report any item that may be outdated or unclear.

4281. Genus of citrus is____________________?
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A. All the above

B. Fortunal

C. Poncirus

D. Citrus

4282. In date palm male spathes enclose how many flowers_______________?
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A. 9000

B. 10000

C. 30000

D. 20000

4283. Cultivation of grapes is called___________________?
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A. Viticulture

B. Ciltriculture

C. Orcharding

D. Pomology

4284. Degeneration and death of aerial plant parts is called___________________?
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A. Senescence

B. Partial Senescence

C. Maturity

D. Both a & b

4285. Poncirus sweet orange is the hybrid cross of_________________?
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A. All the above

B. Citranges

C. Tangelos

D. Limequats

4286. How many crop of potato are sown annually_________________?
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A. 3

B. 2

C. 4

D. 1

4287. Small new plants which grow out from the parent and can be separated as independent plant is called_____________________?
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A. Suckers

B. Offset

C. Seeding

D. Division

4288. What is stump ______________?
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A. Seeding

B. None of the above

C. Shoot cutting

D. Tree cutting

4289. A form of controlled atmosphere storage in which the produce is stored in a partial vacuum is called_________________?
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A. Modified storage

B. Ca storage

C. Hypo baric storage

D. Gas storage

4290. major source of sugar in world is________________?
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A. Beet roots

B. Dates

C. Watermelons

D. Sugar cane

4291. When the corolla has four clawed petals inserted at right angle other is said to be_____________________?
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A. Tubular

B. Rosaceous

C. Cruciform

D. Papilliaci

4292. Citrus orchards are usually planted in___________________?
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A. Quineunx system

B. Rectangular system

C. Square system

D. None of the above

4293. Air layering is also known as_________________?
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A. Cross match

B. Marcpottage

C. Ghooti

D. All the above

4294. The practice of raising trees is called__________________?
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A. Agro forestry

B. Forestry

C. Sericulture

D. range forestry

4295. How much area in Pakistan is under horticultural crops ___________________?
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A. 6%

B. 3%

C. 25%

D. 10%

4296. Tropical and subtropical fruits have the highest level of___________________?
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A. Maltose and starch

B. Glucose and fructose

C. None of the above

D. Cellulose and lactose

4297. Cleft grafting is most successful in_________________?
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A. Almond

B. Apple

C. Both a & b

D. None of the above

4298. Citrus belongs to the___________________?
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A. Announaceae

B. All the above

C. Citrea

D. Rutaceae
4299. Citrus tree can tolerate soil pH_________________?
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A. None of the above

B. 5.5-7.5

C. 5.5-8.5

D. 6-May

4300. First intergeneric hybrid between radish and cabbage was made by_______________________?
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A. Jones (1917)

B. Fray (1966)

C. Muller (1927)

D. Karpehenko (1927)