agriculture MCQs – Page 87

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 Review each marked answer and report any item that may be outdated or unclear.

4301. Removal any terminal part of the plant is called___________________?
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A. Thinning out

B. Pruning

C. Heading back

D. Training

4302. According to national commission of Pakistan, post harvest losses in fruits are____________________?
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A. 20-25%

B. 20-40%

C. 60-70%

D. 30-50%

4303. Rooting of shoots, stems or branches while they are still attached to the parents is called__________________?
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A. Budding

B. Ground Layering

C. Layering

D. Division

4304. According to national commission of Pakistan, post harvest losses in fruits are_________________?
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A. 30-50%

B. 20-25%

C. 20-40%

D. 60-70%

4305. A woody plant with a climbing growth habit is called_____________________?
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A. Vine

B. Liana

C. Shoot

D. Stem

4306. Phoenix dactylifera belongs to the family___________________?
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A. Palmeae

B. Anacardiaceae

C. Rutaceae

D. Pomaceae

4307. An atmosphere with reduced concentration of O2 and increased concentration of CO2 is called_______________?
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A. Oxidation

B. Humidity control

C. Controlled atmosphere

D. Refrigeration

4308. Tomato, chilly brinjal are collectively called__________________?
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A. Cole crop

B. Leafy vegetables

C. Solanaceous crop

D. Bulb crop

4309. Highly specialized plants which reproduced by seeds are called__________________?
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A. Angiosperm

B. Bryophytes

C. Zerophytes

D. Gymnosperm

4310. Green vegetables are source of _______________ ?
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A. Biotin

B. Carbohydrates

C. vitamin

D. folate
4311. A paranchy matous outgrowth in the inner wall of the ovary to which the ovules are attached is called___________________?
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A. Placenta

B. Cambium

C. Ovule

D. Ovary

4312. A flower having many pistils on same receptacle develop____________________?
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A. All the above

B. Multiple fruit

C. Stone fruit

D. Aggregate fruit
4313. The optimum temperature for warm season crop is ___________________?
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A. 25-35C

B. 20-25C

C. 10-20C

D. 18-24C

4314. In seed formation the outer integument of the ovule shrinks and forms the seed coat, is called as_________________?
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A. Axil

B. Tesla

C. Seed coat

D. Tag men

4315. Which one of the following horticultural plants is well known for its cooling effect _______________________?
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A. All the above

B. Jaman

C. Falsa

D. Sweet lime

4316. The edible part of orange is_______________________?
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A. Unicelled endocarpie hair

B. Unicelled placental hair

C. Multicelled endocarpic hair

D. Multicelled placental hair

4317. System for planting banana suckers followed in Sindh is __________________?
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A. Rectangular

B. Square

C. Diagonal

D. Hexagonal

4318. Photosynthesis takes place in_____________________?
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A. Only leaves

B. Only flowers and fruits

C. none

D. All green parts of plants

4319. Anacardiaceous is the family of_________________?
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A. Ber

B. Mango

C. Citrus

D. Cauli flower

4320. Chillies belongs to family___________________?
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A. Solanaceae

B. Piperaceae

C. Libitatae

D. Lauraceae

4321. Commercial production of fruits is known as_____________________?
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A. Pomology

B. Olericulture

C. Orchading

D. Horticulture

4322. Which type of development takes place in the female part of the ovule______________________?
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A. Microsporogenesis

B. Tapetium

C. Megasporogenesis

D. Gametogenesis

4323. A process off converting light energy into useful chemical energy_________________?
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A. Conversion

B. Photoperiodism

C. Photosynthesis

D. Transpiration

4324. chemicals which induce leaf fall are called____________________?
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A. Herbicides

B. Fungicides

C. Growth regulators

D. Defoliant
4325. Removing of certain shoots, cones, spurs from the base of plant is called_________________?
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A. Thinning out

B. Training

C. Heading back

D. Pruning

4326. Mango propagation is more successful by_______________________?
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A. Grafting

B. T-budding

C. Shield budding

D. Cutting

4327. Absence of chlorophyll in the plant is known as_____________________?
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A. Albinism

B. Acrodsome

C. None of the above

D. Agoun

4328. Crossed between mandarin and grape fruit make________________________?
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A. None of the above

B. Citrange

C. Tangelos

D. Limequate

4329. Direct effect of pollen grains on the female tissues of the ovary is called__________________?
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A. Pollination

B. Metaxenia

C. None of the above

D. Xenia

4330. Which among the following does not possess cotyledons__________________?
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A. Castor

B. Coconut

C. Cuscuta

D. Carrot
4331. Which one of the following is fruit__________________?
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A. Cauliflower

B. Potato

C. Brinjal

D. Ginger

4332. Gulkand is made from the most common beautiful flower of_______________?
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A. Jasmine

B. Petunia

C. Chrysanthemum

D. Rose
4333. Parthenogenesis is most commonly seen in_______________________?
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A. Mango

B. Orange

C. Grape

D. Apple

4334. Cucumber, Kidney bean, pea and tomato are the example of _______________________?
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A. Long night plants

B. Day natural plants

C. Long day and Long night plants

D. Long day plants

4335. Development of distorted swollen leaves which become inverted translucent and eventually necrotic is known as_________________?
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A. Mosaicism

B. Vitrification

C. Death of plant

D. Bacterial contamination

4336. The year in which mango tree does not produce or produce very small number of fruit is called ________________ ?
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A. Lazy year

B. None of the above

C. Off year

D. Hunger year

4337. A technique which involves separating vegetative parts like rhizome offset, corns and sucker from the parent plant is called_________________?
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A. Division

B. Mound layering

C. Stool layering

D. Root cutting

4338. Plant growth regulator found in terminal and lateral buds is___________________?
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A. All the above

B. Auxins

C. Gibberellins

D. Abscisic acid

4339. In California the age of citrus tree is____________________?
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A. 70 years

B. 75-100 years

C. 40 years

D. 80-90 years

4340. In Holy Quran which one of the following fruits have been especially mentioned____________________?
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A. Dates

B. Grapes

C. Figs

D. All the above
4341. Formation of male and female gametes in the flower is called__________________?
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A. REproduction

B. Fertilization

C. Zygote formation

D. Gametogenesis
4342. Fruit in which edible portion is thalamus are known as___________________?
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A. Berries

B. Aggregate fruit

C. Soft fruits

D. Pome
4343. A pigment sensitive to light is known as___________________?
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A. None of the above

B. Photo pigment

C. Photo phase

D. Photo receptor
4344. Shrubs and flowering trees are propagated through_________________?
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A. Hard wood cutting

B. Semi hard wood cutting

C. Soft wood cutting

D. Semi soft wood cutting

4345. What type of pollination is observed in okra_________________?
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A. Cross pollination

B. Partually self pollination

C. Partially cross pollination

D. Both A & B
4346. Synthetic products which when applied to plants produce reactions almost identical to those caused by natural harmonics are called______________?
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A. Plant harmonics

B. Photoperiodism activants

C. Plant growth regulators

D. Plant growth promoters
4347. Imperfect flower is___________________?
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A. Without sepals

B. None of the above

C. Without petals

D. Unisexual
4348. In day time plants release_________________?
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A. Hydrogen

B. Nitrogen

C. Carbon dioxide

D. Oxygen
4349. Vernalization is a process that________________?
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A. Promote seed maturation

B. Promote flowering

C. Enhance maturity in plants

D. Initiate fertilization

4350. Degreening of citrus fruit is achieved by the use of_____________________?
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A. Cytokinine

B. Ethylene

C. Ethrel

D. Ethepone