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930+ Horticultural Science Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Agriculture (BSc agri) .

701.

Rose hips are rich source of:

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. All of the above
Answer» C. Vitamin C
702.

Balled and Bur lapped evergreens may be moved at any time of year except when

A. New shoots are growing
B. They are dormant
C. The soil is frozen
D. The soil is too wet
Answer» A. New shoots are growing
703.

Which of the following are not annual plants?

A. Asparagus
B. Petunia
C. Margold
D. Geranium
Answer» A. Asparagus
704.

Which of the following annuals are best used for edging

A. Poppy
B. Stock
C. Sweet alyssum
D. Sun flower
Answer» C. Sweet alyssum
705.

Which of the following are good choices as specimen plants in a landscape:

A. Magnolia
B. Alstonia
C. Gold mohr
D. Bougainvillea
Answer» C. Gold mohr
706.

The most common mistake in mowing cool season grasses is to

A. Mow them too short
B. Mow too often
C. Use a dull mower blade
D. Mow them too high
Answer» A. Mow them too short
707.

The name of the person who developed the binomial system for naming plants is

A. Linneus
B. Socrates
C. Plato
D. Hortus
Answer» A. Linneus
708.

When used to describe a plant, the word deciduous means that

A. The plant is perennial
B. The plant sheds its leaves each year
C. The plant is a shrub
D. All of the above
Answer» B. The plant sheds its leaves each year
709.

Flowers which are grown from bulbs include

A. Zinnia
B. Tulip
C. Marigolds
D. All of the above
Answer» B. Tulip
710.

Xeriscaping is a landscaping process which requires:

A. No water in the landscape
B. Draining water from landscape area
C. Water conserving
D. Arid landscaping
Answer» C. Water conserving
711.

Mulching can reduce water loss by:

A. 50%
B. 90%
C. 35%
D. 25%
Answer» B. 90%
712.

can be effectively used as windbreak:

A. Moulsary
B. Ulta Ashok
C. Bottle brush
D. All of the above
Answer» A. Moulsary
713.

Sprigging is:

A. Cutting grass to kept it short
B. Sowing a lawn
C. Chopping up a lawn to provide better drainage
D. Planting individual plants, runners, or stolons to establish a lawn
Answer» D. Planting individual plants, runners, or stolons to establish a lawn
714.

Grass seed should be carefully covered with soil to a depth of

A. 0.5 cm
B. 1 cm
C. 1.5 cm
D. 2.5 cm
Answer» B. 1 cm
715.

The best way to control weeds from lawn is to develop:

A. A good healthy thick turf
B. A combination of pre emergence and post mergence weed killer
C. A weed killer/fertilizer
D. None of the above
Answer» A. A good healthy thick turf
716.

Rolling the lawn each year may be necessary to

A. Level the lawn
B. Push grass roots into close contact with soil
C. Provide a firm surface for mowing
D. All of the above
Answer» D. All of the above
717.

The common name for diffenbachia is

A. Umbrella tree
B. Bougainvillea
C. Snake plant
D. Dumb cane
Answer» D. Dumb cane
718.

The genus name for croton

A. Sanservieria
B. Ficus
C. Codiaeium
D. Araucaria
Answer» C. Codiaeium
719.

When indoor plants are over watered:

A. They drop their leaves
B. They die
C. Their leaves turn yellow
D. All of the above
Answer» C. Their leaves turn yellow
720.

The night temperature of indoor plants should be _________ºF cooler than day time temperature

A. 5-10
B. 3-4
C. 20-30
D. 10-15
Answer» D. 10-15
721.

Charcoal is used in a terrarium for its

A. Color
B. Drainage material
C. Drainage ability
D. None of the above
Answer» B. Drainage material
722.

The use of high nitrogen fertilizers in terrarium soil results in the release of

A. Moisture
B. Ammonia gas
C. New plants
D. None of the above
Answer» B. Ammonia gas
723.

Plants tend to grow towards light sources. It is known as

A. Photosynthesis
B. The rain cycle
C. Transpiration
D. Phototropism
Answer» D. Phototropism
724.

Moisture is lost through small openings on the underside of the leaves known as:

A. Air holes
B. Stems
C. Stomata
D. None of the above
Answer» C. Stomata
725.

The larger, center most of the plants used in bonsai is cut off:

A. To dwarf the plant
B. To cause root branching
C. To make root system shallow
D. To simplify root pruning job
Answer» B. To cause root branching
726.

Site of attraction that holds attention of viewer in a landscape is called;

A. Balance
B. Proportion
C. Focal point
D. Rythum
Answer» C. Focal point
727.

Most famous fragrant plant in summer is;

A. Jasminum sambac
B. Althcea rosea
C. Tabernamontana divertica
D. All of the above
Answer» A. Jasminum sambac
728.

Lilium longiflorum, an important holiday potted plant, is commonly known as:

A. Kalanchoe
B. Poinsettia
C. Easter Lily
D. Hydrangea
Answer» C. Easter Lily
729.

Pansy is very popular winter annual for its

A. Stem and foliage beauty
B. Planting under shade
C. Hardiness towards ground cover
D. Mixed coloured flower bedding plant
Answer» D. Mixed coloured flower bedding plant
730.

Use of a pipe covered by a rope for providing support to some indoor plants like Scindapsus, is termed as:

A. Terrarium
B. Totem
C. Topiary
D. None of the above
Answer» B. Totem
731.

An open frame work, designed to offer shady resting place is called;

A. Cold frame
B. Arbor
C. Pergola
D. Deck
Answer» B. Arbor
732.

A line of demarcation that creates visual interest in a landscape by separating one segment from another is called

A. Edging
B. Border
C. Fencing
D. Line
Answer» A. Edging
733.

In landscape shape of tree is called

A. Shape
B. Form
C. Structure
D. Texture
Answer» B. Form
734.

Water gardening is also called,

A. Equascape
B. Hardscape
C. Nightscape
D. Alpine gardening
Answer» A. Equascape
735.

Landscape, in which rocks and grasses are used instead of flowers is called

A. Rock gardening
B. Japanese gardening
C. Water gardening
D. None of the above
Answer» B. Japanese gardening
736.

Which of the statement is true?

A. Verbena is used as climber
B. Verbena is used for border
C. Verbena is used as hedge plant
D. Verbena is used as bedding plant
Answer» D. Verbena is used as bedding plant
737.

Which of the plant is used for is foliage beauty?

A. Kochia
B. Phlox
C. Partulaca
D. Antirrhinum
Answer» A. Kochia
738.

Which annual flower is used ground cover?

A. Viola
B. Stock
C. Calendula
D. Musemberanthemum
Answer» D. Musemberanthemum
739.

Which of the statement is true?

A. Lawns should always be mowed in the same direction
B. Plants are best wintered without water in them
C. Cylinder mowers give thorough mowing because of air vacuum system
D. Warm season grasses usually respond better to close mowing.
Answer» D. Warm season grasses usually respond better to close mowing.
740.

An example of a specialty cut flower used in a floral arrangement is a(n):

A. Rose
B. Carnation
C. Orchid
D. Pompom Chrysanthemum
Answer» C. Orchid
741.

Which of the following plant require very light pruning?

A. Nerium Odorum
B. Rhododendron
C. Lawsonia alba
D. Punica grantum
Answer» A. Nerium Odorum
742.

Which tree bears fragrant flowers?

A. Albezia lebbeck
B. Pinus roxburghii
C. Papulus elegni
D. None of the above
Answer» D. None of the above
743.

Which following creeper bears white flowers?

A. Ipomea
B. Plumbago
C. Clerodendron
D. Tecoma
Answer» B. Plumbago
744.

Pinus roxburghii is very healthy growing in;

A. Tropical zone
B. Subtropical zone
C. All of the above zones
D. None of the above zones
Answer» D. None of the above zones
745.

Low-lying plant that covers some area in the landscape is called;

A. Shrub
B. Ground cover
C. Bedding plant
D. Perennial
Answer» B. Ground cover
746.

Plants which shed there leaves in autumn are called;

A. Evergreen
B. Annuals
C. Deciduous
D. Biennials
Answer» C. Deciduous
747.

is a common disease found on roses grown for cut flowers.

A. Stem rot
B. Rust
C. Root rot
D. Botrytis
Answer» D. Botrytis
748.

Plants for the marginal areas of pond are called

A. Bog plants
B. Emergent
C. Aquatic plants
D. floaters
Answer» A. Bog plants
749.

Type of contained water feature is

A. Fountain
B. Water fall
C. Pond
D. None of the above
Answer» C. Pond
750.

_______________ is used for daily movement in the landscape

A. Functional path
B. Temporary path
C. Occasional path
D. Decorative path
Answer» A. Functional path

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