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horticulture MCQs

Practise focused horticulture questions with marked answers for exam preparation and subject revision.

horticulture Mcqs
1. Objective of pruning include___________________?
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A. all the above

B. Developing the strong framework

C. Controlling the direction of growth

D. Improving the productiveness

2. Anaerobic respiration is known as___________________?
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A. Transportation

B. Sterilization

C. Fermentation

D. Ripening

3. Ethylene has horticulture uses such as___________________?
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A. Initiating flowers

B. Changing the green color of fruits

C. All the above

D. Inducing fruit maturity

4. The most popular and common method of laying out orchard on flat ground is_________________?
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A. Square system

B. Quincunx system

C. Rectangular system

D. Triangular system

5. Tomato is good source of vitamin___________________?
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A. Vitamin A

B. All the above

C. Vitamin B

D. Vitamin C

6. The ratio of CO2 and O2 uptaken during respiration is known as_____________________?
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A. Respiration

B. Respiratory quotient

C. Both a & b

D. None of the above

7. The conservation of glucose or fructose in pyruive acid during respiration is called________________?
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A. Glucopage

B. Glycolysis

C. Glycogen

D. None of the above

8. Main factors affecting production and quantity of citrus is___________________?
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A. Humidity

B. Rainfall

C. Temperature

D. All the above
9. Lettuce is____________?
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A. Fruit

B. Tuber

C. Fruit

D. Leaf
10. From which part of coconut tree coir is obtained___________________?
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A. Endosperm

B. Inflorescence

C. Pericarp of fruit

D. Mesocarp

11. Cataracts, a form of impaired vision in which the lens of eye become opaque in old age is caused due to the deficiency of________________?
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A. Folic acid

B. None of the above

C. Tannins

D. Ascorbic acid

12. The union of the second male gametes with polar nuclei is called_______________?
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A. Fertilization

B. Double fertilization

C. Both a & b

D. non of these

13. Jack fruit belong to family__________________?
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A. Solanaceae

B. Carcaceae

C. Palmae

D. Moraceae
14. The basal part which provided the root system for anchorage and absorption of moisture and nutrients is called___________________?
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A. Scion

B. Budding

C. Root stock

D. Grafting

15. Loss off leaves due to seasonal change is_________________?
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A. Leeward

B. Malformation

C. None of the above

D. Defoliation
16. Guava, tomato, ber and melons are rich in__________________?
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A. Vitamin D

B. Vitamin C

C. Vitamin B

D. Vitamin A

17. Growing of vegetables for the consumption of local market and large center is_________________?
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A. Truck gardening

B. Home gardening

C. Market gardening

D. Olericulture

18. In orange aroma is developed by__________________?
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A. Degreening

B. Valencene

C. Ethylene

D. Citral
19. Banana belongs to type of fruit where the edible portion is ___________________?
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A. Sycoms

B. Berry

C. Drup

D. Mesocarp

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

B. 500C

C. 2000C

D. 6000C

21. 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

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

B. Cellulose

C. Starch

D. Fates

23. 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

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

B. Lumen

C. Noticlemiles

D. Km

25. 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

26. 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

27. 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

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

B. Herbs

C. Shurbs

D. Succulents

29. 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

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

B. Middle east

C. South America

D. Africa

31. 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

32. 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

33. 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
34. Parthenocarpic refers to____________________?
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A. Seed less fruit

B. All the above

C. Single seeded fruit

D. Multi seed fruit

35. 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

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

B. deciduous

C. Monoecious

D. annuals

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

B. Chlormequat

C. Daminozide

D. Cycocel

38. 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

39. 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

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

B. Budding

C. Layering

D. Grafting

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

B. Seeds

C. None of the above

D. Buds

42. 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
43. Plants with persistent leaves are___________________?
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A. Binuiatis

B. Deciduous

C. Evergreen

D. Perininals

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

B. Epidermus

C. Sepals

D. Petals

45. Excess of nitrogen_____________________?
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A. Delays tillering

B. Delays germination

C. Delays ripening

D. Delays flowering

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

B. Citrus

C. Guava

D. Date

47. 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

48. 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

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

B. Annuals

C. Biennials

D. Woody perianials

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

B. Packing

C. Vegetable forcing

D. Processing