4251. Sweet potato belong to family_____________________?
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A. Solanaceae

B. Conolvulaccae

C. Cruciferae

D. Araceae

4252. Almond belongs to family_________________?
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A. Annonaccae

B. Musaceae

C. Rosaceae

D. Moraceae

4253. Anaerobic respiration is known as____________________?
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A. Transportation

B. Fermentation

C. Sterilization

D. Ripening

4254. Species which give out long and flexible branches, the shoot to be layered is covered with soil at several places to encourage rooting at more than one point is called ___________________?
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A. Serpentine layering

B. Ground layering

C. Stool layering

D. Air layering

4255. Coconut is propagated by____________________?
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A. Seed

B. Sucker

C. Rhizome

D. Stolen

4256. Enzymes are__________________?
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A. Activator

B. none

C. Catalyst

D. Inhibitor

4257. What type of pollination is observed in cucumber_____________________?
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A. Partially self fertilization

B. Cross pollination

C. Self pollination

D. Partially cross pollination
4258. Which method of irrigation is possible under the economical conditions of Pakistan __________________?
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A. Canal system

B. Drip irrigation

C. All the above

D. Modified basin system

4259. A process by which a piece of scion is attached to a root stock in a way that eabium of both scion and root stock came in firm contact, resulting is a new tissue is called_________________?
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A. Budding

B. Grafting

C. Rooting

D. Ghooti

4260. Which of the following constitute the best definition of fruit____________________?
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A. A fruit is post fertilization

B. A fruit is a product of flower

C. A fruit is a product of ovary

D. A fruit is a mature ovary that contain seed
4261. A reproductive part of the plant which is responsible for the production of fruits and seeds is called ________________?
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A. Corolla

B. Flower

C. All the above

D. Calyx

4262. The transfer of pollen grains from anthers to the stigma by any pollinating agent is called______________?
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A. Pollination

B. Crossing

C. Breeding

D. Allogamy

4263. From which part of turmeric plant the turmeric powder is obtained__________________?
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A. dried roots

B. Dried fruit

C. Seeds

D. Dried rhizome
4264. The number of calories of heat required to change the temperature of one Kg of a substance is called____________________?
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A. Molar heat

B. Specified heat

C. None of the above

D. Heat action

4265. In ripened banana the aroma is due to presence of____________________?
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A. Eugenol

B. Valencene

C. Ethyl

D. Isopentanol

4266. In mango and carrot how much vitamin C (mg/100 gm)is present__________________?
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A. None of the above

B. 30

C. 40

D. 80

4267. In bhindi production of foundation seed needs an isolation distance of___________________?
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A. 100 meters

B. 50 meters

C. 200 meters

D. 3 meters

4268. Recommended seed rate of potato is_________________?
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A. 800-1200 Kg

B. 5000 Kg

C. 500 Kg

D. 1200 Kg

4269. Propagation of guava is done by___________________?
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A. Scoin

B. Suckers

C. Layering

D. Cutting

4270. A plant part which provides top and fruit bearing surface is called__________________?
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A. Root stock

B. Scion

C. Both a & b

4271. Scaled polyethylene bags increase the susceptibility of orange fruit from_________________?
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A. Mould

B. Virus

C. Bacteria

D. Fungi

4272. How many training system are__________________?
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A. Three

B. Two

C. Four

D. Five

4273. What are the factors which influence the efficiency of respiration_____________________?
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A. Temperature

B. All the above

C. Substrate

D. Oxygen

4274. Apple apricot, plum, date, olive and peaches are rich in________________________?
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A. All the above

B. Carbohydrates

C. Protein

D. Minerals
4275. A series of electron transport coupling factors which transfer along an electro chemical ingredients, yielding ATP, in light is called_________________?
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A. Photosynthesis

B. Photoperiodism

C. None of the above

D. Photophosphorrylation
4276. Plants having monoecious flower are_____________________?
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A. Colocasia

B. Maize

C. Castor

D. All the above
4277. Which layout is the most suitable for the uneven lands and sub mountain areas _____________________?
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A. Triangular system

B. Contour system

C. Hexagonal system

D. Rectangular system

4278. The production of vegetables for distant market is called___________________?
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A. Train farming

B. Distant farming

C. Intensive farming

D. Truck farming
4279. Which of the leafy vegetables has high cellulose and add bulk to food___________________?
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A. Celery

B. Lettuce

C. Cabbage

D. All the above
4280. In Pakistan hockey sticks are generally made from__________________?
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A. Morus alba

B. Melia

C. morus nigra

D. Salix

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)