Top 1000+ Solved Horticultural Science MCQ Questions Answer
Q. Lack of early spring flowering from tulip bulbs planted outdoors is due to:
a. Bright sunlight
b. Lack of winter cooling
c. Excessive moisture
d. Magnesium and calcium deficiencies
Q. A leaf with parallel venation:
a. Has leaflets
b. Is a monocot
c. Has crossing veins
d. Is a compound leaf
Q. When making hand-tied bouquets, the stems should be positioned:
a. Parallel to each other
b. Perpendicular to each other
c. Any way that looks nice and holds together
d. In a spiraling manner
Q. Which of the following is not a method for sterilizing plant growing medium?
a. Steaming
b. Baking
c. Using chemical fumigants
d. Keeping the growing medium moist for 6 to 7 days
Q. Which of the following is not among the major principles of design?
a. Balance
b. Scale
c. Emphasis
d. Price
Q. The showy red, pink, or white portion of the poinsettia are:
a. Flowers
b. Bracts
c. Petals
d. Sepals
Q. A technique to produce well branched, compact plants with many flowers is:
a. Stunting
b. Compacting
c. Pinching
d. Potting
Q. Which of the following is a member of the Dianthus family?
a. Chrysanthemum
b. Phlox
c. Sedum
d. Carnation
Q. Which of the shrub bears red colour flowers
a. Atriplex halimus
b. Tecoma stans
c. Jatropha metrifeda
d. Jasminum sambac
Q. The acceleration of flowering by manipulating environmental conditions is known as:
a. Pulsing
b. Forcing
c. Leaching
d. After-ripening
Q. Which shrub has white colour flowers with fragrance
a. Tabernaemontana divertice
b. Hibiscus rosa chinensis
c. Thevetia merifolia
d. Jasminum sambac
Q. Peat is often mixed into the growing medium of container plants because it:
a. Is inexpensive
b. Has good air and water holding capacities
c. Has a high pH
d. Absorbs excessive soluble salts
Q. The two most practical means of the home owner to control insects and diseases are:
a. Mechanical and chemical
b. Mechanical and biological
c. Chemical and biological
d. Biological and natural
Q. In temperate climates, pruning should not be done near the end of the summer because:
a. New growth will not harden before winter
b. It may increase foliage disease
c. Plants will not recover in time to produce new growth before winter
d. Sever “bleeding” from the cuts will kill the plant
Q. A plant hardy in tropical zone will also be hardy in zone:
a. Temperate
b. Subtropical
c. Arid
d. Semi-arid