Top 1000+ Solved Horticultural Science MCQ Questions Answer

Q. Piping is carried out in

a. Chrysanthemum

b. Rose

c. Gladiolus

d. Carnation

Q. Chlorophyll formation takes place within a light wavelength of _________:

a. 150-200

b. 200-300

c. 300-675

d. 700-900

Q. Root formation is promoted in softwood cuttings under light intensity of __________foot candles:

a. 100-150

b. 150-200

c. 200-250

d. 250-350

Q. Fruiting body of roses is called:

a. Button

b. Hips

c. Slip

d. None of above

Q. Apple and pear form their flowers buds in ___________:

a. May-June

b. July-August

c. September-October

d. November-December

Q. Volatile oil are those oil which can evaporate at :

a. 25°C

b. 40°C

c. 50°C

d. 65°C

Q. The renewal of NO3 involves release of ___________ from organic fraction of the soiland its rapid nitrification:

a. NO2

b. NH4

c. N

d. NO

Q. Most of Nitrogen is used in the decomposition of __________ and thus plant showsdeficiency symptoms :

a. Amino acids

b. Cellulose

c. Carbon compounds

d. Organic matter

Q. Toxicity of Mg can be modified by adding ________:

a. N

b. PO4

c. Ca

d. K2O

Q. Injurious effects of sulphates can be replaced with the addition of ________:

a. Nitrates

b. Phosphates

c. Ammonia

d. Ca & Mg

Q. Internal browning in apples takes place due to _______:

a. Fungus

b. High temperature

c. Hail storm

d. Bacteria

Q. Onion seeds can germinate at a temperature of :

a. 0-1°C

b. 1-5°C

c. 5-11°C

d. 15-20°C

Q. Dead heading is the removal of

a. Dead branches

b. Dead roots

c. Faded flowers

d. Shriveled leaves

Q. Hygrometer is used to measure

a. Pressure

b. Humidity

c. Wind speed

d. Solar radiation

Q. Pinching out is the removal of

a. Growing point of root

b. Opening flower buds

c. Growing point of buds

d. Removal of seeds