4351. A group of plants providing food, fiber and shelter is____________________?
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A. Angiosperm

B. Dieetyledens

C. Gymnosperm

D. Monocotyledons

4352. Several scions with their base ends trimmed as wedges are inserted between the bark and the wood is called_________________?
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A. Tongue grafting

B. Bridge grafting

C. Splice grafting

D. Bark grafting
4353. Auxins and cytokinins are________________?
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A. Growth regulators

B. Fungicides

C. Herbicides

D. Insecticides

4354. A physiological aging activity in which plant tissues degenerate and ultimately die is called___________________?
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A. Fruit ripening

B. Maturity

C. Senescence

D. Both a & b

4355. Establishment of new crop naturally or artificially is _________________?
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A. Nursery

B. Regeneration

C. Sericulture

D. Siliviculture

4356. Nitrogen requirement for citrus plant per year is___________________?
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A. 1 Kg

B. 2Kg

C. 1-1.5Kg

D. 4Kg
4357. Transfer of pollen grains of a flower to the stigma of the same the flowers of the same plant is called__________________?
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A. Polygamy

B. Homogamy

C. None of the above

D. Autogamy
4358. Study of plant species in relation of its environmental history ___________________?
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A. Ontogeny

B. Histology

C. Phylogemy

D. None of the above

4359. Tomatoes would not have turned red if__________________?
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A. They were kept at the bottom layer of the box

B. Less hey had been put in the box

C. There were no ripe apples in the box

D. They were mixed with the ripe apples

4360. Anthesis starts in onion. at__________________?
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A. 7.00 am

B. 5.00 am

C. 10.00 am

D. 8.00 am
4361. Increased flower size has made tetraploidy important for___________________?
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A. Agronomist

B. Pathologist

C. Plant breeder

D. Horticulturist
4362. Which one of the following plants prevent soil erosion and reclaim water logged soils____________________?
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A. Ber

B. All the above

C. Guava

D. Pome granate

4363. Temperate fruits requires certain amount of chilling to flower, which one is the important temperate fruit from the following list__________________?
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A. All the above

B. Mango

C. Litchi

D. Apple
4364. Seed is___________________?
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A. None of the above

B. Transformed ovule after fertilization

C. Developed egg after fertilization

D. developed ovary after fertilization

4365. The recommended plant to plant space for chiku is __________________?
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A. 50 x 50 ft

B. 20 x 20 ft

C. 100 x 100 ft

D. 35 x 35 ft

4366. Plant hormones present in the apices of shoots and leaf primordials are __________________?
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A. Ethylene

B. Auxins

C. Cytokinins

D. Gibberellins
4367. Liquid food drinking is_____________________?
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A. None of the above

B. Phagocytosis

C. Imbibitions

D. Pinoeytosis
4368. Storage life of lemon is____________________?
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A. 6 weeks

B. None of the above

C. 7 weeks

D. 4-5 weeks

4369. Common varieties of rose are developed by___________________?
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A. Grafting

B. Cutting

C. Budding

D. Layering

4370. A branch of science which deals with ornamental and vegetables is called___________________?
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A. Sericulture

B. Floriculture

C. Agriculture

D. Horticulture
4371. Tender crop cannot tolerate a minimum temperature of ___________________?
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A. -1C

B. 2C

C. 0C

D. 1C

4372. A major metabolic process taking place in harvest yield is__________________?
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A. Respiration

B. transpiration

C. Absorption

D. Growth

4373. Planting distance of about 10-15 meter is recommended for___________________?
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A. Datepalm

B. Mango

C. Banana

D. Apple

4374. System of planting banana suckers followed in Sindh is____________________?
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A. Hexagonal

B. Square

C. Rectangular

D. Triangular

4375. Shelf life of fruit is prolonged by use of____________________?
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A. Auxins

B. 2,4-D

C. Maleic hydrazine

D. Ethylene

4376. Cabbage and cauliflower are also___________________?
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A. Bulb crop

B. Cole crop

C. Solanaceous

D. Leafy vegetables

4377. Loss of sensation and heart enlargement are caused due to deficiency of__________________?
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A. Vitamin B

B. Vitamin E

C. Vitamin A

D. Vitamin C

4378. A pruning management done to develop a tree framework strong cough to bear large number of fruits without breaking of branches is known as _________________?
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A. Training

B. Punning

C. Thinning

D. All the above
4379. Strawberry belongs to what type of fruit ?
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A. Berry

B. Aril

C. Etario of achenes

D. Pome

4380. Type of mango fruit is_________________?
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A. Peop

B. Pome

C. Berry

D. Drupe
4381. The management of plant structure and fruiting wood is called____________________?
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A. Thinning

B. None of the above

C. Pruning

D. Training

4382. A propagation technique in which instead of wrapping the notched portion is burried in the ground is called________________?
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A. Layering

B. Air layering

C. Ground layering

D. Ghooti

4383. How much of the earth surface is covered with water ___________________?
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A. 70%

B. 80%

C. 40%

D. 65%

4384. A pruning management done to develop a tree framework strong cough to bear large number of fruits without breaking of branches is known as_________________?
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A. Training

B. All the above

C. Thinning

D. Punning

4385. What type of pollination is observed in cauliflower__________________?
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A. Partial self fertilization

B. Self fertilization

C. Self pollination

D. Cross pollination
4386. A branch of horticulture dealing with the production and marketing of vegetable is called__________________?
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A. Olericulture

B. Viticulture

C. Pomology

D. Sericulture

4387. Sericulture deals with__________________?
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A. Fisheries

B. Forest trees

C. Honey bees

D. Silk worm
4388. In spinach cross pollination takes place by___________________?
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A. Hybridization

B. Water

C. Birds

D. Wind
4389. Optimum temperature, minimum temperature and maximum temperature are collectively called_________________?
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A. All the above

B. Absolute temperature

C. Various temperature

D. Cardinal temperature
4390. Poncirus sweet orange is the hybrid cross of __________________?
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A. Limequats

B. All the above

C. Tangelos

D. Citranges
4391. Splice grafting is most successful in___________________?
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A. Mango

B. Apple

C. Both a & b

D. None of the above

4392. Photophosphorylation is process of generating_____________________?
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A. CTP

B. KTP

C. UTP

D. ATP
4393. In apple wool aphid is genetically controlled by___________________?
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A. 2 D

B. Id

C. 2d

D. ID
4394. Rafinose is_______________________?
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A. Monosaccharide

B. Trisaccharide

C. Disaccharide

D. Polysaccharide

4395. Activities of plant tissues ceases at minimum temperature of ____________________?
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A. 2C

B. 10C

C. 4C

D. -1C

4396. Who used first artificial hybridization in fruit crops ____________________?
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A. none

B. Knight (1800)

C. Karpocho (1810)

D. Jones (1917)

4397. The storage life of fresh oranges at 5 to 9c is ____________________?
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A. 6-8 weeks

B. 4-6 weeks

C. 6-12 weeks

D. 6-10 weeks

4398. The storage life of fresh lemon at 10C is___________________?
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A. 12-20 weeks

B. 6-10 weeks

C. 10-15 weeks

D. 12-16 weeks

4399. Training includes which one of the following operations?
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A. Only supporting

B. Only tying

C. All of the above

D. Only propping

4400. The size of stomata is measured by___________________?
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A. Atomic absorption Spectrophotometer

B. Potometer

C. Spectrophotometer

D. Porometer