4201. Surface temperature of sun is___________________?
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A. 100,000C

B. 500C

C. 2000C

D. 6000C

4202. The smell in onion bulb is due to__________________?
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A. Sulphur components

B. bad odour of the soil

C. Much sugar

D. Fleshy leaves

4203. Cotton fiber are made up of___________________?
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A. Protein

B. Cellulose

C. Starch

D. Fates

4204. Skin diseases, night blindness and kidney stone are caused by the deficiency of__________________?
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A. Vitamin D

B. Protein

C. Vitamin A

D. Vitamin B

4205. The metric unit of light is___________________?
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A. Lux

B. Lumen

C. Noticlemiles

D. Km

4206. The portion of the axis below the cotyledons is known as___________________?
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A. Hypocotyle

B. Epictyl

C. Micropyle

D. None of the above

4207. Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called___________________?
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A. Short day plants

B. Long day plants

C. Phototropism

D. Photoperiod

4208. 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

4209. Self supporting succulent plants are called____________________?
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A. Off shoots

B. Herbs

C. Shurbs

D. Succulents

4210. A condition of green plant in which they become unhealthy and pale yellow in colour in known as_________________?
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A. Chloroplast

B. Chlorsis

C. Leucoplast

D. Chromoplast

4211. Citrus has its origin in____________________?
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A. Indo- Chinese region

B. Middle east

C. South America

D. Africa

4212. Removing of certain shoots, cones, spurs from the base of plant is called___________________?
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A. Thinning out

B. Heading back

C. Training

D. Pruning

4213. Aging process in which all plant parts except seeds die is called_________________?
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A. Partial Senescence

B. Complete Senescence

C. All the above

D. Senescence

4214. What is 2,4-D____________________?
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A. IAA

B. All the above

C. 2-4 napthalene acetic acid

D. 2-4 diclorophenoxy acetic acid
4215. Parthenocarpic refers to____________________?
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A. Seed less fruit

B. All the above

C. Single seeded fruit

D. Multi seed fruit

4216. Heat requirement to change 1 Kg of a substance at its boiling point from the liquid to vapour is called__________________?
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A. Heat of vaporization

B. Heat of fusion

C. Mechanical heat

D. Heat energy

4217. Plants which shed their leaves during winter are___________________?
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A. Evergreen

B. deciduous

C. Monoecious

D. annuals

4218. Commercial growth inhibitors include__________________?
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A. All the above

B. Chlormequat

C. Daminozide

D. Cycocel

4219. A branch of Horticulture dealing with the production of fruits and their distribution is called_______________?
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A. Pomology

B. Olericulture

C. Sericulture

D. Citricultire

4220. Witting and shriveling of fruits is prevented by the use of_________________?
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A. 2,4-D

B. None of the above

C. Waxing

D. Ethylene

4221. The artificial vegetative production is done by____________________?
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A. All the above

B. Budding

C. Layering

D. Grafting

4222. Citrus root stock species are propagated through_________________?
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A. Cutting

B. Seeds

C. None of the above

D. Buds

4223. Mango are planted in which of the following layout system____________________?
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A. Hexagonal system

B. Contour system

C. Quincunx system

D. Square system
4224. Plants with persistent leaves are___________________?
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A. Binuiatis

B. Deciduous

C. Evergreen

D. Perininals

4225. Calyx and corolla together are called__________________?
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A. Perianth

B. Epidermus

C. Sepals

D. Petals

4226. Excess of nitrogen_____________________?
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A. Delays tillering

B. Delays germination

C. Delays ripening

D. Delays flowering

4227. The problem of granulation has been found in____________________?
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A. Mango

B. Citrus

C. Guava

D. Date

4228. Fleshy fruits developed from the ovary wall with out stony layer are known as____________________?
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A. None of the above

B. Berry

C. Drupe

D. Pome

4229. Cosmos, chrysanthemum, poinsettia are the examples of _________________?
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A. Short day plants

B. Long night plants

C. Long day plants

D. Short night plants

4230. Carrot, Radish, Turnip, Cabbage and beet are the____________________?
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A. Perenials

B. Annuals

C. Biennials

D. Woody perianials

4231. Plants which shed their leaves during winter are ___________________?
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A. Grading

B. Packing

C. Vegetable forcing

D. Processing
4232. A phenomenon of fusion of male and female gametes is known_______________?
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A. Fertilization

B. Gamete formation

C. Interaction

D. All the above

4233. Which one of the following is dioceous plant___________________?
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A. Datepalm

B. Maize

C. Papaya

D. All the above

4234. In green vegetables, the limiting amino acid is____________________?
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A. Agrginine

B. Methionine

C. Frytophaer

D. Lysine

4235. The most highly advanced division in plants kingdom is____________________?
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A. Tracheophyta

B. Pteridophtes

C. Taxonomy

D. None of the above

4236. How much grams of vegetables and fruits are recommended for a balanced diet per day by WHO__________________?
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A. 40 grams

B. 300 grams

C. 150 grams

D. 450 grams
4237. The Potato is___________________?
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A. Tuber

B. Rhizome

C. Sucker

D. Fruit

4238. Planting distance of Falsa is___________________?
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A. 2.5m

B. 3.0m

C. 2.0m

D. 3.5m

4239. Citrus root stock seeding are ready for budding after_____________________?
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A. 9 months

B. 6 months

C. 01 months

D. 02 months

4240. Sweet potato is___________________?
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A. Tuber

B. Rhizome

C. Fruit

D. Root
4241. The food in onion is stored in___________________?
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A. stems

B. Scaly leaves

C. Flowers

D. Roots

4242. The enzymes and pigments associated with photosynthesis are located in____________________?
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A. Protoplast

B. Chloroplast

C. Leucoplast

D. Chromoplast

4243. Spinach, althea, winter wheat and oat are the example of____________________?
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A. short day plants

B. Short day and long night plants

C. Long day and short night plants

D. Long day plants

4244. Bunchy top disease of banana is___________________?
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A. Viral disease

B. Nematode disease

C. Fungal disease

D. Bacterial disease

4245. Which types of fruits are known at higher altitude in KP, Balochistan and Murree hills_________________?
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A. Pomes

B. None of the above

C. Aggregate fruit

D. Barries

4246. Some use of cytokinins in horticulture are________________?
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A. To stimulate shoot development

B. Delaying senescence

C. Accelerating bud growth

D. All the above
4247. A science which deals with classification of plants is called___________________?
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A. Taxonomy

B. Histology

C. Ecology

D. Morphology

4248. Ornamental Horticulture is the combination of____________________?
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A. Viticulture and landscape

B. None of these

C. Pomology and floriculture

D. Floriculture and landscape
4249. The edible part in pomegranate is___________________?
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A. Juicy tasta

B. Juicy hairs

C. Mesocarp

D. Jmey cpicarp

4250. A controlled oxidation process by which all organisms ultimately obtain the energy stored in organic compound is known as_______________?
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A. Oxidation

B. Transportation

C. Respiration

D. Both a & b