Important Horticulture mcqs with answers for test preparation of different jobs in agricultural department of Pakistan.
Horticulture MCQs
Silviculture is a ____?
A. Arabic word
B. Latin word
C. French word
D. Both A & C
The popular varieties of dates produced in the province of Balochistan, Makran division are:
A. Kahraba
B. Begum jangi
C. Mozwati
D. Both B & C
When seed leaves the fruit or flower is called _____?
A. Quiescent.
B. Dormancy
C. Dissemination
D. None of these
A Stalk connecting an ovule or a seed with the placenta (the ovary)?
A. Funiculus
B. Hilum
C. Aril
D. Raphe
Suri is the variety of__________ ?
A. Cherry
B. Mango
C. Olive
D. Non of the above
Which of the following not iodine rich vegetable crops?
A. Okra
B. French bean & capsicum
C. Brinjal
D. both B & C
Among the root crops, the application of potassic fertilizers is essential in _____?
A. Carrot
B. Turnip
C. Radish
D. All of the above
Absence Of Chlorophyll is known as _______?
A. Agoun
B. Albinism
C. Acrodsome
D. None of these
Training’ includes which one of the following operations?
A. Only supporting
B. Only propping
C. Only tying
D. All of the above
Acidlime is commercially propagated by________?
A. Grafting
B. Seed
C. Cutting
D. All of the above
Crysanthemum is propagated by _______?
A. Suckers
B. corms
C. corals
D. None
The one reason of unfruitfulness in fruits may be: _____?
A. Heterostyly
B. Compatibility
C. Monoecy
D. None of above
The term vernalization was first used in 1928 by ________?
A. Chailakhian
B. Gassner
C. Lysenko
D. Wrinkker
Proteins fails to work ________?
A. With acidic pH
B. With out acidic pH
C. With basic pH
D. With out basic pH
Plant gums and mucilages are _______?
A. Disaccharides
B. Monosaccharides
C. Monosaccharides
D. None of the above
What are the products of fermentation of grapes by yeast _____?
A. CO & alcohol
B. ATP & CO2
C. ATP & Ethanol
D. All the above
The size of stomata is measured by _______?
A. Potometer
B. Porometer
C. Spectrophotometer
D. Atomic absorption Spectrophotometer
The process that convert glucose to pyruvic acid is ______?
A. Citric cycle
B. Glycolysis
C. Fermentation
D. Calvin-Benson cycle
The main function of auxin is ________?
A. Cell division
B. Cell elongation
C. Cell differentiation
D. Cell production
Chilling injury in fruits occurs due to _____?
A. Accumulation of ethanol
B. Accumulation of acetaldehyde
C. Accumulation of toxic compounds
D. All the above
Fruits ripen better at a relative humidity of at least _________?
A. 70%
B. 80%
C. 85%
D. 90%
Mango fruit can best be cooled by means of _______?
A. Cold air cooling
B. Hydro cooling
C. Vacuum cooling
D. None of the above
The storage life of fresh onion at -1 to -4ºC is ______?
A. 10-15 weeks
B. 10-25 weeks
C. 12-28 weeks
D. 12-25 weeks
The storage life of fresh apples at -1 to -4ºc is _______?
A. 4-10 weeks
B. 10-20 weeks
C. 8-30 weeks
D. 20-25 weeks
The storage life of fresh mango at -1 to 4ºc is __________?
A. 0-4 weeks
B. 1-4 weeks
C. 1-2 weeks
D. 2-4 weeks
Low temperature in climacteric fruits causes delay in ____?
A. Ripening
B. Harvesting
C. Conversion of sugar to starch
D. None of the above
The activity of enzymes in fruits usually decline at temperature ______?
A. Above 10ºC
B. Above 20ºC
C. Above 30ºC
D. None of the above
Eating quality of the fruits is determined by _______?
A. Flavor
B. Texture
C. Physiological age
D. All the above
Degradation of green colour of fruits is due to ______?
A. pH changes
B. Oxidative system
C. Chloroplry lases
D. All the above
which one of the following is climacteric fruit ______?
A. Grape
B. Banana
C. Lemon
D. Pineapple
The chromoplast develops mainly from ______?
A. Leucoplast
B. Chloroplast
C. Phagoplast
D. Amyloplast
Ripening fruits soften due to _____?
A. Jelly formation at acidic pH
B. Soubulization of pectate of middle lamelle
C. Conversion of starch in sugar
D. Incorporation of pectate in middle lamella
The message of jasmine is ______?
A. Love
B. Peace
C. Friendship
D. All the above
Banana is a rich source of ______?
A. Vitamins
B. Proteins
C. Lipids
D. Carbohydrates
Tomato is a _____?
A. Short day plant
B. Long day plant
C. Day-neutral plant
D. None of the above
Fruits are an excellent source of _______?
A. Vitamins
B. Minerals
C. Carbohydrates
D. All the above
Collar rot in chilies is caused by ______?
A. Rhizocotina solani
B. Phytopatinara infeston
C. Phytophuthora spesies
D. Phytophatara cupsa
Which disease is caused by nematodes in banana ______?
A. Banana bunchy top
B. Finger tip rot
C. Panama diseases
D. Root knot
Disease incidences in plants is favored by _____?
A. Cloudy weather
B. High humidity
C. Low temperature
D. All the above
Cabbage, cauliflower, broccoli, knol-knol are _____?
A. Leafy vegetables
B. Solanaceous vegetables
C. Floral vegetable
D. Cole crop
Gumosis is disease of ______?
A. Mango
B. Guava
C. Citrus
D. Datepalm
Coding moth is major pest of _______?
A. Apple
B. Peach
C. Pear
D. Grapes
The science of rearing honey bee for honey is known as _____?
A. Sericulture
B. Honey culture
C. Apiculture
D. Silvi culture
The fruit plants resisting acidic condition is _______?
A. Mango
B. Chiku
C. Banana
D. Datepalm
The national tree of Pakistan is _______?
A. Neem
B. Acasia Arabia
C. Sesam
D. All the above
Alternate bearing is the serious problem of ______?
A. Guava
B. Citrus
C. Mango
D. Persimon
Citrus is divided into three genera, citrus, poncirus and fortunate by ____?
A. Hodgson
B. Swingle
C. Lincous
D. None of the above
Activities of plant tissues ceases at minimum temperature of ____?
A. 10ºC
B. -1ºC
C. 4ºC
D. 2ºC
Adaptability, germination ability and variation the advantages of ______?
The fruit whose pericarp does not split open at maturity are called ______?
A. Indehiscent fruit
B. Dehiscent fruit
C. Sehizo fruit
D. None of the above
which one of the following instrument is used to measure the relative humidity in atmosphere ____?
A. Colorimeter
B. Hygrometer
C. Paramagnetic analyzer
D. none of the above
Edible seed like almonds, pea cons are known as ______?
A. Sub-tropical fruits
B. Nuts
C. Berries
D. None of the above
Out door production of vegetables, out of their normal season is known as _________?
A. Out season production
B. vegetable forcing
C. vegetable improvement
D. None of the above
Ginger and turmeric are propagated by ______?
A. Rhizome
B. Tuber
C. Corns
D. All the above
Anti-oxidants is used to prevent food from _______?
A. Juice flow
B. Discoloration
C. Over npening
D. non of these
Green vegetables are the source of _____?
A. Biotin
B. Carbohydrates
C. Foliate
D. Vitamin
Which of the following is good source of vitamin A ______?
A. Banana
B. Mango
C. Gram
D. Wheat
Which one of the following is not fruit _______?
A. Tomato
B. Potato
C. Muskmelon
D. Bitter guard
The toxic substance CN glycocides is found in _____?
A. Yam
B. Cassava
C. Cucurbits
D. Brinjal
R1 to R6 genes against late blight of potato was reported by ______?
A. Biffen (1905)
B. Flor (1956)
C. Van der plank (1963)
D. Painter (1951)
The high level of starch accumulation is present in _____?
A. Cassava
B. Potato
C. Cucumber
D. Carrot
Lenticular transpiration generally occurs in ______?
A. Cercal crops
B. Vegetables
C. Woody plants
D. Flower
Papaya fruit is _______?
A. Pome type
B. Berry type
C. Pepo type
D. All the above
Lemon plant is commercially propagated by _____?
A. seed
B. Layering
C. Grafting
D. Budding
The pigment present in tomato is _____?
A. B-carotene
B. Xanthophyll
C. Lycopene
D. Chlorophyll
The protein content of fresh fruit is about _______?
A. 4%
B. 2%
C. 3%
D. 1%
A plant hormone which promote cell division known as _____?
A. Cytokinins
B. Auxins
C. Gibberellins
D. IAA
What is topping _____?
A. Removal of branches
B. Removal of leaves
C. Removal of roots
D. none of the above
Science and art of establishment a tree crop is called ______?
A. Sericulture
B. Tissue culture
C. Silva culture
D. None of the above
which is multipurpose tree _____?
A. Kikar
B. Mango
C. Cedar
D. Pine
Commercial grape cultivation is called _____?
A. Cirticulture
B. Olericulture
C. Viticulture
D. Sericulture
Variation in the performance of the same mango variety in the same orchard may be due to the variation in the root stock raised from seeds which may be due to ____?
A. Polyembroyonic
B. Variable root stock size
C. Mono-embryonic
D. All the above
If humidity is more transpiration will be ________?
A. More
B. Less
C. No
D. Too much
Photophosphorylation is process of generating ______?
A. ATP
B. UTP
C. CTP
D. KTP
In plants when glucose is more than its requirement the surplus is converted into _____?
A. Glycogen
B. Starch
C. Sucrose
D. None of the above
Rafinose is ________?
A. Trisaccharide
B. Monosaccharide
C. Disaccharide
D. Polysaccharide
The photo nthesis reaction is determined by ______?
A. Hill reaction
B. Goldman equation
C. Nernst equation
D. Oxidation-reduction reaction
Carbohydrates are separated by ______?
A. Gas liquid chromatography
B. Infra-red spectrophotometer
C. Flame photometry
D. Paper chromatography
Where does respiratory electron transport occurs _____?
A. Cytoplasm
B. Inner membrane of mitochondria
C. matrix of mitochondria
D. Chloroplast
Which one of the following instrument is used for measuring fruit flesh finess ______?
A. Penetometer
B. Effegi instrument
C. Magners- Taylor pressure tester
D. All the above
Shelf life of banana at 20ºC in modified atmosphere with potassium permanganate is ______?
A. Upto 7 days
B. Upto 14 days
C. Upto 21 days
D. Upto 30 days
which one of the following fruit is perishable ________?
A. Mango
B. Banana
C. Cherry
D. Grapes
The cooling methods for fresh produce is dependent on _____?
A. Temperature of produce at harvest
B. Physiology of the produce
C. Post harvest life of the produce
D. All the above
The storage life of fresh lemon at 10ºC is ______?
A. 6-10 weeks
B. 10-15 weeks
C. 12-20 weeks
D. 12-16 weeks
The storage life of fresh oranges at 5 to 9ºc is ______?
A. 4-6 weeks
B. 6-8 weeks
C. 6-12 weeks
D. 6-10 weeks
Potato when fried, excessive browning develops due to ______?
A. Caramelization
B. Reaction between amino acid and sugar
C. All the above
D. None of the above
Reduction in climatic temperature causes reduction in fruit parameters such as _____?
A. Respiration
B. Change in texture
C. Loss of vitamin C
D. All the above
The dormancy of bulbs, roots and tubers can be prolonged by ______?
A. Medium temperature
B. Low temperature
C. Appropriate storage conditions
D. All the above
Which one of the following quantative change is associated with ripening of fruits ______?
A. Breakdown of poly carbohydrates
B. Conversion of starch to sugar
C. Pectic substance and hemicellulose
D. All the above
Which one of the following is non-climacteric fruit _____?
A. Mango
B. Apple
C. Papaya
D. Grape
Which one of the following disease is caused due to lack of fiber in diets ______?
A. Appendicitis
B. Diabetes
C. Hernia
D. All the above
Respiratory enzymes in the cell are present in ______?
A. Ribosome’s
B. Lysosomes
C. Mitochondria
D. Plastids
Mango is grown in soils with pH _____?
A. 5.5-7.5
B. 5-8
C. 5.5-8.7
D. 6-8
In plants the food is stored in the form of _____?
A. Glycogen
B. Cellulose
C. Fat
D. Strach
Which one of the following ________?
A. Aphids
B. Cut worm
C. Army worms
D. Weevils
The nutrient stimulating vegetative growth is _______?
A. Phosphorus
B. Potassium
C. Nitrogen
D. Zinc
The influence of light on flowering in plant is _______?
A. Phototropism
B. Photolysis
C. Photoperiodism
D. Photosynthesis
Club-root is the disease of _____?
A. Turnip
B. Okra
C. Watermelon
D. Cabbage
Production of silk is termed as _____?
A. sericulture
B. silvi culture
C. Apiculture
D. None of the above
The fruit tree which are naturally cross pollinated are ______ ?
A. Mango and lemon
B. Chiku and banana
C. Apple and grape
D. Datepalm and papaya
Citrus canker is a disease caused by ______?
A. Virus
B. Nematode
C. Fungi
D. Bacteria
The national flower of Pakistan is ______?
A. Rose
B. Tube rose
C. Jasmine
D. All the above
Decidous fruits can be planted in ______?
A. Spring
B. Rainy season
C. Both a & b
D. None of the above
When a single bud is used as scion and inserted into root stock is called ____ ?
A. Shield budding
B. Stocking
C. Budding
D. All the above
The average temperature for maximum plant growth is ______?
A. 20-30ºC
B. 25-35ºC
C. 28-30ºC
D. 25-30ºC
Edible part of apple is _____ ?
A. fleshy aril
B. fleshy thalamus
C. Seed
D. Epicarp
A paranchy matous outer growth in the minor wall of the ovary to which the ovules are attached is called _____?
A. Cambium
B. Placenta
C. Ovule
D. Ovary
Transfer of pollen grains to the stigma of the flowers of another plant is known as _______?
A. Allogamy
B. Autogamy
C. Polygamy
D. Cleistogamy
Trees are characterized by ____?
A. Larger branch
B. Single central stem
C. Root
D. Many branches
Inflorescence of mango ______?
A. Cymose
B. Recemose
C. bunch
D. Terminal panicle
Mango stock for grafting is raised from ______ ?
A. Cutting
B. Budding
C. Stones
D. All the above
Guava grown in soils with pH ______?
A. 4.5-8.5
B. 5.5-7.5
C. 7.5-9.0
D. 6.5-7.5
Roma is variety of ______?
A. Onion
B. Guar
C. Tomato
D. Raddish
Plant parts useful for extraction of opium from papaver saminiferaim are _____?
A. Young seedings
B. Old leaves
C. Unripe fruit
D. Ripened fruit
Who used first artificial hybridization in fruit crops _____?
A. Knight (1800)
B. Karpocho (1810)
C. Jones (1917)
D. none
Resigns is toxic substance found in ____?
A. Guava
B. Mango
C. Apple
D. Cassava
In apple wool aphid is genetically controlled by _______?
A. 2 D
B. ID
C. 2d
D. Id
Purpling of leaves is common deficinary symptoms of _____?
A. Phosphorus
B. Iron
C. Potassium
D. Nitrogen
The year in which mango tree does not produce or produce very small number of fruit is called _______ ?
A. Lazy year
B. Hunger year
C. Off year
D. None of the above
System for planting banana suckers followed in Sindh is ______?
A. Rectangular
B. Hexagonal
C. Square
D. Diagonal
The recommended plant to plant space for chiku is _______?
A. 20 x 20 ft
B. 35 x 35 ft
C. 50 x 50 ft
D. 100 x 100 ft
Green vegetables are source of ____ ?
A. Biotin
B. Carbohydrates
C. folate
D. vitamin
What is stump _______?
A. Shoot cutting
B. Tree cutting
C. Seeding
D. None of the above
Loss off leaves due to seasonal change is _____?
A. Leeward
B. Defoliation
C. Malformation
D. None of the above
Establishment of new crop naturally or artificially is _______?
A. Siliviculture
B. Sericulture
C. Nursery
D. Regeneration
The practice of raising trees is called ______?
A. Forestry
B. Agro forestry
C. range forestry
D. Sericulture
Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called _______?
A. Long day plants
B. Short day plants
C. Photoperiod
D. Phototropism
Planting distance of about 10-15 meter is recommended for _______?
A. Apple
B. Mango
C. Datepalm
D. Banana
Sericulture deals with ______?
A. Fisheries
B. Honey bees
C. Silk worm
D. Forest trees
In ripened banana the aroma is due to presence of ______?
A. Ethyl
B. Eugenol
C. Isopentanol
D. Valencene
Degreening of citrus fruit is achieved by the use of _______?
A. Ethrel
B. Ethepone
C. Ethylene
D. Cytokinine
Scaled polyethylene bags increase the susceptibility of orange fruit from ______?
A. Bacteria
B. Fungi
C. Mould
D. Virus
Tropical and subtropical fruits have the highest level of _______?
A. Maltose and starch
B. Glucose and fructose
C. Cellulose and lactose
D. None of the above
Type of mango fruit is _____?
A. Pome
B. Drupe
C. Peop
D. Berry
A pigment sensitive to light is known as ________?
A. Photo phase
B. Photo pigment
C. Photo receptor
D. None of the above
First intergeneric hybrid between radish and cabbage was made by _______?
A. Jones (1917)
B. Muller (1927)
C. Fray (1966)
D. Karpehenko (1927)
Seed is _____?
A. developed ovary after fertilization
B. Developed egg after fertilization
C. Transformed ovule after fertilization
D. None of the above
The edible part of orange is ______?
A. Unicelled endocarpie hair
B. Unicelled placental hair
C. Multicelled endocarpic hair
D. Multicelled placental hair
The food in onion is stored in ______?
A. Roots
B. stems
C. Flowers
D. Scaly leaves
The smell in onion bulb is due to _______?
A. bad odour of the soil
B. Much sugar
C. Sulphur components
D. Fleshy leaves
Almond belongs to family _______?
A. Musaceae
B. Rosaceae
C. Annonaccae
D. Moraceae
Jack fruit belong to family _______?
A. Musaceae
B. Rosaceae
C. Annonaccae
D. Moraceae
Jack fruit belong to family _______?
A. Solanaceae
B. Moraceae
C. Carcaceae
D. Palmae
In Pakistan hockey sticks are generally made from _____?
A. Salix
B. Morus alba
C. morus nigra
D. Melia
Cotton fiber are made up of _______?
A. Cellulose
B. Starch
C. Fates
D. Protein
Liquid food drinking is _______?
A. Pinoeytosis
B. Phagocytosis
C. Imbibitions
D. None of the above
Absence of chlorophyll in the plant is known as _______?
A. Acrodsome
B. Albinism
C. Agoun
D. None of the above
Plants having monoecious flower are ______?
A. Maize
B. Castor
C. Colocasia
D. All the above
Increased flower size has made tetraploidy important for _______?
A. Plant breeder
B. Agronomist
C. Horticulturist
D. Pathologist
The artificial vegetative production is done by ______?
A. Grafting
B. Budding
C. Layering
D. All the above
Which among the following does not possess cotyledons ______?
A. Coconut
B. Castor
C. Carrot
D. Cuscuta
A condition of green plant in which they become unhealthy and pale yellow in colour in known as _______?
A. Chloroplast
B. Chromoplast
C. Leucoplast
D. Chlorsis
Auxins and cytokinins are _______?
A. Growth regulators
B. Herbicides
C. Insecticides
D. Fungicides
Which one of the following is dioceous plant ______?
A. Papaya
B. Datepalm
C. Maize
D. All the above
Vernalization is a process that ______?
A. Promote seed maturation
B. Enhance maturity in plants
C. Initiate fertilization
D. Promote flowering
In day time plants release ______?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
Enzymes are _______?
A. Activator
B. Catalyst
C. Inhibitor
D. none
Imperfect flower is _____?
A. Without sepals
B. Unisexual
C. Without petals
D. None of the above
Coconut is propagated by ______?
A. Seed
B. Sucker
C. Stolen
D. Rhizome
Tomato, chilly brinjal are collectively called _____?
A. Leafy vegetables
B. Cole crop
C. Bulb crop
D. Solanaceous crop
Recommended seed rate of potato is ______?
A. 1200 Kg
B. 800-1200 Kg
C. 500 Kg
D. 5000 Kg
In date palm male spathes enclose how many flowers _____?
A. 30000
B. 9000
C. 20000
D. 10000
Propagation of guava is done by _____?
A. Cutting
B. Suckers
C. Layering
D. Scoin
Anacardiaceous is the family of _____?
A. Ber
B. Mango
C. Citrus
D. Cauli flower
In California the age of citrus tree is _______?
A. 70 years
B. 80-90 years
C. 75-100 years
D. 40 years
Poncirus sweet orange is the hybrid cross of _______?
A. Tangelos
B. Citranges
C. Limequats
D. All the above
A form of controlled atmosphere storage in which the produce is stored in a partial vacuum is called _______?
A. Gas storage
B. Hypo baric storage
C. Modified storage
D. Ca storage
Anaerobic respiration is known as _______?
A. Transportation
B. Sterilization
C. Fermentation
D. Ripening
According to national commission of Pakistan, post harvest losses in fruits are ______?
A. 20-40%
B. 60-70%
C. 30-50%
D. 20-25%
Removing of certain shoots, cones, spurs from the base of plant is called _______?
A. Pruning
B. Training
C. Thinning out
D. Heading back
A pruning management done to develop a tree framework strong cough to bear large number of fruits without breaking of branches is known as ______?
A. Training
B. Thinning
C. Punning
D. All the above
Excess of nitrogen _______?
A. Delays ripening
B. Delays tillering
C. Delays germination
D. Delays flowering
Witting and shriveling of fruits is prevented by the use of ______?
A. Waxing
B. 2,4-D
C. Ethylene
D. None of the above
Shelf life of fruit is prolonged by use of _______?
A. Maleic hydrazine
B. Ethylene
C. 2,4-D
D. Auxins
In orange aroma is developed by _______?
A. Ethylene
B. Citral
C. Degreening
D. Valencene
A major metabolic process taking place in harvest yield is _____?
A. transpiration
B. Growth
C. Respiration
D. Absorption
System of planting banana suckers followed in Sindh is ______?
A. Rectangular
B. Triangular
C. Hexagonal
D. Square
Common varieties of rose are developed by _______?
A. Grafting
B. Layering
C. Budding
D. Cutting
In seed formation the outer integument of the ovule shrinks and forms the seed coat, is called as _____?
A. Tag men
B. Tesla
C. Axil
D. Seed coat
Parthenogenesis is most commonly seen in _______?
A. Apple
B. Orange
C. Grape
D. Mango
The edible part in pomegranate is ______?
A. Juicy tasta
B. Jmey cpicarp
C. Juicy hairs
D. Mesocarp
Tomatoes would not have turned red if ____?
A. They were kept at the bottom layer of the box
B. They were mixed with the ripe apples
C. There were no ripe apples in the box
D. Less ” hey” had been put in the box
In bhindi production of foundation seed needs an isolation distance of ________?
A. 100 meters
B. 50 meters
C. 200 meters
D. 3 meters
Sweet potato belong to family ________?
A. Solanaceae
B. Araceae
C. Conolvulaccae
D. Cruciferae
Chillies belongs to family ______?
A. Piperaceae
B. Lauraceae
C. Solanaceae
D. Libitatae
From which part of turmeric plant the turmeric powder is obtained _______?
A. Seeds
B. dried roots
C. Dried rhizome
D. Dried fruit
major source of sugar in world is _______?
A. Dates
B. Sugar cane
C. Watermelons
D. Beet roots
The enzymes and pigments associated with photosynthesis are located in _____?
A. Leucoplast
B. Chloroplast
C. Chromoplast
D. Protoplast
In green vegetables, the limiting amino acid is ______?
A. Methionine
B. Agrginine
C. Lysine
D. Frytophaer
Which one of the following is fruit _______?
A. Cauliflower
B. Potato
C. Brinjal
D. Ginger
Anthesis starts in onion. at ______?
A. 7.00 am
B. 10.00 am
C. 8.00 am
D. 5.00 am
A paranchy matous outgrowth in the inner wall of the ovary to which the ovules are attached is called ______?
A. Cambium
B. Placenta
C. Ovule
D. Ovary
Which of the following constitute the best definition of fruit _________?
A. A fruit is a product of flower
B. A fruit is a product of ovary
C. A fruit is a mature ovary that contain seed
D. A fruit is post fertilization
chemicals which induce leaf fall are called _______?
A. Defoliant
B. Growth regulators
C. Herbicides
D. Fungicides
Objective of pruning include _______?
A. Controlling the direction of growth
B. Developing the strong framework
C. Improving the productiveness
D. all the above
From which part of coconut tree coir is obtained ______?
A. Endosperm
B. Mesocarp
C. Pericarp of fruit
D. Inflorescence
Parthenocarpic refers to ________?
A. Single seeded fruit
B. Multi seed fruit
C. Seed less fruit
D. All the above
Photosynthesis takes place in ________?
A. All green parts of plants
B. Only leaves
C. Only flowers and fruits
D. none
A branch of science which deals with ornamental and vegetables is called _______?
A. Floriculture
B. Agriculture
C. Horticulture
D. Sericulture
Mango propagation is more successful by ________?
A. Shield budding
B. Grafting
C. T-budding
D. Cutting
Highly specialized plants which reproduced by seeds are called ______?
A. Angiosperm
B. Gymnosperm
C. Bryophytes
D. Zerophytes
Tomato is good source of vitamin ______?
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. All the above
Cabbage and cauliflower are also ____?
A. Leafy vegetables
B. Bulb crop
C. Cole crop
D. Solanaceous
Phoenix dactylifera belongs to the family _______?
A. Pomaceae
B. Palmeae
C. Rutaceae
D. Anacardiaceae
Mango are planted in which of the following layout system _____?
A. Quincunx system
B. Square system
C. Contour system
D. Hexagonal system
The problem of granulation has been found in _______?
A. Guava
B. Mango
C. Citrus
D. Date
Genus of citrus is ______?
A. Fortunal
B. Poncirus
C. Citrus
D. All the above
Storage life of lemon is ________?
A. 4-5 weeks
B. 6 weeks
C. 7 weeks
D. None of the above
An atmosphere with reduced concentration of O2 and increased concentration of CO2 is called ______?
A. Refrigeration
B. Oxidation
C. Humidity control
D. Controlled atmosphere
In mango and carrot how much vitamin C (mg/100 gm)is present ______?
A. 80
B. 40
C. 30
D. None of the above
Removal any terminal part of the plant is called _____?
A. Thinning out
B. Heading back
C. Pruning
D. Training
How many training system are _______?
A. Four
B. Three
C. Two
D. Five
The management of plant structure and fruiting wood is called ______?
A. Training
B. Thinning
C. Pruning
D. None of the above
Poncirus sweet orange is the hybrid cross of ______?
A. Tangelos
B. Citranges
C. Limequats
D. All the above
A form of controlled atmosphere storage in which the produce is stored in a partial vacuum is called _____?
A. Gas storage
B. Hypo baric storage
C. Modified storage
D. Ca storage
Anaerobic respiration is known as _______?
A. Transportation
B. Sterilization
C. Fermentation
D. Ripening
According to national commission of Pakistan, post harvest losses in fruits are ____?
A. 20-40%
B. 60-70%
C. 30-50%
D. 20-25%
Removing of certain shoots, cones, spurs from the base of plant is called _____?
A. Pruning
B. Training
C. Thinning out
D. Heading back
A pruning management done to develop a tree framework strong cough to bear large number of fruits without breaking of branches is known as _____?
A. Training
B. Thinning
C. Punning
D. All the above
Which method of irrigation is possible under the economical conditions of Pakistan ____?
A. Canal system
B. Modified basin system
C. Drip irrigation
D. All the above
Which layout is the most suitable for the uneven lands and sub mountain areas ________?
A. Hexagonal system
B. Contour system
C. Triangular system
D. Rectangular system
The most popular and common method of laying out orchard on flat ground is _______?
A. Triangular system
B. Rectangular system
C. Square system
D. Quincunx system
Planting distance of Falsa is __________?
A. 3.0m
B. 3.5m
C. 2.5m
D. 2.0m
How much of the earth surface is covered with water _______?
A. 65%
B. 70%
C. 80%
D. 40%
The optimum temperature for warm season crop is ______?
A. 25-35°C
B. 18-24°C
C. 20-25°C
D. 10-20°C
Tender crop cannot tolerate a minimum temperature of _____?
A. 0°C
B. -1°C
C. 1°C
D. 2°C
Optimum temperature, minimum temperature and maximum temperature are collectively called _____?
A. Absolute temperature
B. Cardinal temperature
C. Various temperature
D. All the above
Heat requirement to change 1 Kg of a substance at its boiling point from the liquid to vapour is called _______?
A. Heat of fusion
B. Heat energy
C. Heat of vaporization
D. Mechanical heat
Bunchy top disease of banana is ______?
A. Fungal disease
B. Viral disease
C. Bacterial disease
D. Nematode disease
Shrubs and flowering trees are propagated through ______?
A. Soft wood cutting
B. Hard wood cutting
C. Semi soft wood cutting
D. Semi hard wood cutting
How many crop of potato are sown annually ______?
A. 1
B. 2
C. 3
D. 4
What type of pollination is observed in okra _______?
A. Cross pollination
B. Partually self pollination
C. Partially cross pollination
D. Both A & B
What type of pollination is observed in cauliflower ______?
A. Self pollination
B. Cross pollination
C. Self fertilization
D. Partial self fertilization
Several scions with their base ends trimmed as wedges are inserted between the bark and the wood is called ______?
A. Tongue grafting
B. Bark grafting
C. Splice grafting
D. Bridge grafting
Cleft grafting is most successful in ______?
A. Almond
B. Apple
C. Both a & b
D. None of the above
Citrus orchards are usually planted in _______?
A. Square system
B. Quineunx system
C. Rectangular system
D. None of the above
Citrus root stock species are propagated through ______?
A. Seeds
B. Cutting
C. Buds
D. None of the above
Citrus tree can tolerate soil pH ______?
A. 5-6
B. 5.5-8.5
C. 5.5-7.5
D. None of the above
A plant part which provides top and fruit bearing surface is called ______?
A. Root stock
B. Scion
C. Both a & b
A process by which a piece of scion is attached to a root stock in a way that eabium of both scion and root stock came in firm contact, resulting is a new tissue is called ________?
A. Ghooti
B. Budding
C. Grafting
D. Rooting
Species which give out long and flexible branches, the shoot to be layered is covered with soil at several places to encourage rooting at more than one point is called _____?
A. Ground layering
B. Stool layering
C. Serpentine layering
D. Air layering
Air layering is also known as _____?
A. Cross match
B. Marcpottage
C. Ghooti
D. All the above
Ethylene has horticulture uses such as _____?
A. Inducing fruit maturity
B. Initiating flowers
C. Changing the green color of fruits
D. All the above
Some use of cytokinins in horticulture are ______?
A. To stimulate shoot development
B. Delaying senescence
C. Accelerating bud growth
D. All the above
Plant hormones present in the apices of shoots and leaf primordials are ______?
A. Gibberellins
B. Auxins
C. Cytokinins
D. Ethylene
Synthetic products which when applied to plants produce reactions almost identical to those caused by natural harmonics are called ______?
A. Plant harmonics
B. Plant growth regulators
C. Photoperiodism activants
D. Plant growth promoters
Spinach, althea, winter wheat and oat are the example of ______?
A. Long day plants
B. short day plants
C. Long day and short night plants
D. Short day and long night plants
Aging process in which all plant parts except seeds die is called ____?
A. Senescence
B. Complete Senescence
C. Partial Senescence
D. All the above
A physiological aging activity in which plant tissues degenerate and ultimately die is called ________?
A. Fruit ripening
B. Maturity
C. Senescence
D. Both a & b
The union of the second male gametes with polar nuclei is called _______?
A. Fertilization
B. Double fertilization
C. Both a & b
D. non of these
Formation of male and female gametes in the flower is called ______?
A. Zygote formation
B. Gametogenesis
C. Fertilization
D. REproduction
A reproductive part of the plant which is responsible for the production of fruits and seeds is called _____?
A. Corolla
B. Calyx
C. Flower
D. All the above
The portion of the axis below the cotyledons is known as _______?
A. Micropyle
B. Hypocotyle
C. Epictyl
D. None of the above
The conservation of glucose or fructose in pyruive acid during respiration is called __?
A. Glucopage
B. Glycogen
C. Glycolysis
D. None of the above
A controlled oxidation process by which all organisms ultimately obtain the energy stored in organic compound is known as _____?
A. Oxidation
B. Transportation
C. Respiration
D. Both a & b
A process off converting light energy into useful chemical energy ______?
A. Photoperiodism
B. Photosynthesis
C. Transpiration
D. Conversion
Banana belongs to type of fruit where the edible portion is ______?
A. Mesocarp
B. Sycoms
C. Berry
D. Drup
Transfer of pollen grains of a flower to the stigma of the same the flowers of the same plant is called _____?
A. Polygamy
B. Autogamy
C. Homogamy
D. None of the above
Calyx and corolla together are called ________?
A. Petals
B. Sepals
C. Perianth
D. Epidermus
How much area in Pakistan is under horticultural crops ______?
A. 3%
B. 10%
C. 6%
D. 25%
Citrus has its origin in ______?
A. Indo- Chinese region
B. Africa
C. South America
D. Middle east
Which one of the following plants prevent soil erosion and reclaim water logged soils _____?
A. Ber
B. Guava
C. Pome granate
D. All the above
Cataracts, a form of impaired vision in which the lens of eye become opaque in old age is caused due to the deficiency of _____?
A. Ascorbic acid
B. Tannins
C. Folic acid
D. None of the above
Guava, tomato, ber and melons are rich in ______?
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D
How much grams of vegetables and fruits are recommended for a balanced diet per day by WHO _______?
A. 40 grams
B. 150 grams
C. 300 grams
D. 450 grams
A group of plants providing food, fiber and shelter is _______?
A. Gymnosperm
B. Angiosperm
C. Dieetyledens
D. Monocotyledons
A science which deals with classification of plants is called _____?
A. Ecology
B. Morphology
C. Taxonomy
D. Histology
Fruit in which edible portion is thalamus are known as _______?
A. Aggregate fruit
B. Soft fruits
C. Pome
D. Berries
Plants which shed their leaves during winter are _____?
A. Monoecious
B. Evergreen
C. deciduous
D. annuals
Plants which shed their leaves during winter are ______?
A. Grading
B. Packing
C. Processing
D. Vegetable forcing
Growing of vegetables for the consumption of local market and large center is ______?
A. Truck gardening
B. Market gardening
C. Home gardening
D. Olericulture
Sweet potato is _______?
A. Tuber
B. Fruit
C. Root
D. Rhizome
Cultivation of grapes is called ______?
A. Orcharding
B. Ciltriculture
C. Viticulture
D. Pomology
Ornamental Horticulture is the combination of ______?
A. Pomology and floriculture
B. Floriculture and landscape
C. Viticulture and landscape
D. None of these
A branch of Horticulture dealing with the production of fruits and their distribution is called _____?
A. Olericulture
B. Pomology
C. Sericulture
D. Citricultire
Surface temperature of sun is _______?
A. 6000°C
B. 100,000°C
C. 500°C
D. 2000°C
The number of calories of heat required to change the temperature of one Kg of a substance is called _____?
A. Heat action
B. Molar heat
C. Specified heat
D. None of the above
The metric unit of light is ____?
A. Km
B. Lux
C. Noticlemiles
D. Lumen
Small new plants which grow out from the parent and can be separated as independent plant is called ______?
A. Suckers
B. Offset
C. Division
D. Seeding
In spinach cross pollination takes place by _______?
A. Water
B. Birds
C. Hybridization
D. Wind
What type of pollination is observed in cucumber ______?
A. Partially self fertilization
B. Partially cross pollination
C. Self pollination
D. Cross pollination
Development of distorted swollen leaves which become inverted translucent and eventually necrotic is known as ______?
A. Bacterial contamination
B. Mosaicism
C. Vitrification
D. Death of plant
Splice grafting is most successful in ______?
A. Mango
B. Apple
C. Both a & b
D. None of the above
Nitrogen requirement for citrus plant per year is ______?
A. 1 Kg
B. 1-1.5Kg
C. 2Kg
D. 4Kg
Citrus root stock seeding are ready for budding after ______?
A. 6 months
B. 9 months
C. 01 months
D. 02 months
Main factors affecting production and quantity of citrus is _______?
A. Temperature
B. Humidity
C. Rainfall
D. All the above
Crossed between mandarin and grape fruit make _______?
A. Citrange
B. Tangelos
C. Limequate
D. None of the above
Citrus belongs to the _______?
A. Announaceae
B. Rutaceae
C. Citrea
D. All the above
The basal part which provided the root system for anchorage and absorption of moisture and nutrients is called ______?
A. Scion
B. Root stock
C. Grafting
D. Budding
Read More: Past Papers of Agriculture