Which mango variety is known for its late maturity and excellent keeping quality, primarily cultivated in South India?
A
Alphonso
B
Kesar
C
Banganapalli
D
Dashehari
Question 2Single Answer
Which papaya variety is known for its high papain content and is preferred for industrial use?
A
Pusa Dwarf
B
Co-1
C
Red Lady 786
D
Washington
Question 3Single Answer
Which banana variety is internationally recognized for its export quality and is susceptible to Panama disease?
A
Grand Naine
B
Robusta
C
Nendran
D
Cavendish
Question 4Single Answer
Which guava variety is famous for its pink flesh and high vitamin C content?
A
Allahabad Safeda
B
Lucknow 49
C
Arka Mridula
D
Lalit
Question 5Single Answer
Which pineapple variety is known for its smooth leaves and high sugar content?
A
Kew
B
Queen
C
Mauritius
D
Smooth Cayenne
Question 6Single Answer
Which variety of sapota is known for high yield and good quality fruits?
A
Kalipatti
B
Cricket Ball
C
DHS-1
D
Baramati
Question 7Single Answer
Which avocado variety is most widely grown for commercial production worldwide?
A
Fuerte
B
Hass
C
Pinkerton
D
Zutano
Question 8Single Answer
Mango requires a distinct dry period for:
A
Vegetative growth
B
Flowering and fruiting
C
Root development
D
Nutrient uptake
Question 9Single Answer
Papaya is highly sensitive to:
A
Waterlogging
B
High temperatures
C
Low humidity
D
Strong winds
Question 10Single Answer
Banana requires high humidity and:
A
Low light intensity
B
High light intensity
C
Fluctuating temperatures
D
Acidic soils
Question 11Single Answer
Which tropical fruit exhibits climacteric ripening?
A
Litchi
B
Citrus
C
Mango
D
Jamun
Question 12Single Answer
Pineapple growth is significantly affected by:
A
Soil pH
B
Day length
C
Wind speed
D
Altitude
Question 13Single Answer
The chilling requirement is an important factor for flower induction in Which fruit?
A
Banana
B
Mango
C
Avocado
D
Pineapple
Question 14Single Answer
Which fruit requires high amount of sunlight for good fruit color development?
A
Jackfruit
B
Mangosteen
C
Guava
D
Rambutan
Question 15Single Answer
Which propagation method is commonly used for mango?
A
Layering
B
Grafting (veneer/stone)
C
Cutting
D
Budding
Question 16Single Answer
Papaya is primarily propagated by:
A
Seeds
B
Cuttings
C
Layering
D
Budding
Question 17Single Answer
Which rootstock is used to impart dwarfing in mango?
A
Seedling rootstock
B
Vellaikolumban
C
Olour
D
All of the above
Question 18Single Answer
Tissue culture is widely used in the propagation of:
A
Banana
B
Sapota
C
Litchi
D
Jamun
Question 19Single Answer
Stionic influence refers to the effect of:
A
Rootstock on scion
B
Scion on rootstock
C
Both a and b
D
Neither a nor b
Question 20Single Answer
Which propagation method is used for Pineapple?
A
Crown slips
B
Suckers
C
Stem cuttings
D
All of the above
Question 21Single Answer
Which rootstock is used for citrus to provide tolerance to phytophthora?
A
Rangpur Lime
B
Trifoliate Orange
C
Cleopatra Mandarin
D
All of the above.
Question 22Single Answer
High-density planting is commonly practiced in:
A
Mango
B
Banana
C
Papaya
D
All of the above
Question 23Single Answer
Canopy management in mango primarily focuses on:
A
Light interception
B
Air circulation
C
Pruning and training
D
All of the above
Question 24Single Answer
Root zone management involves:
A
Soil moisture conservation
B
Nutrient availability
C
Weed control
D
All of the above
Question 25Single Answer
Which planting system is suitable for sloppy lands?
A
Square system
B
Contour system
C
Hexagonal system
D
Triangular system
Question 26Single Answer
Intercropping is commonly practiced in young orchards to:
A
Increase income
B
Improve soil health
C
Control weeds
D
All of the above
Question 27Single Answer
The concept of root pruning is used to control what in fruit trees?
A
Vegetative growth.
B
Fruit set.
C
Nutrient uptake.
D
Water absorption.
Question 28Single Answer
Fertigation is the application of fertilizers through:
A
Foliar spray
B
Irrigation water
C
Soil application
D
Seed treatment
Question 29Single Answer
Which nutrient is crucial for flowering and fruiting in tropical fruits?
A
Nitrogen
B
Phosphorus
C
Potassium
D
Calcium
Question 30Single Answer
Which bioregulator is used to induce flowering in pineapple?
A
Gibberellic acid (GA3)
B
Ethrel (Ethephon)
C
Indole acetic acid (IAA)
D
Cytokinin
Question 31Single Answer
Drip irrigation is highly effective in:
A
Water conservation
B
Nutrient use efficiency
C
Weed control
D
All of the above
Question 32Single Answer
Which micronutrient is essential for pollen viability and fruit set?
A
Iron
B
Zinc
C
Manganese
D
Copper
Question 33Single Answer
The use of antitranspirants helps in:
A
Increasing water uptake
B
Reducing water loss
C
Enhancing nutrient absorption
D
Improving fruit color
Question 34Single Answer
What is the benefit of using organic mulches in tropical fruit orchards?
A
Soil moisture conservation
B
Weed suppression
C
Improved soil structure
D
All of the above
Question 35Single Answer
Which growth regulator is used to delay fruit ripening?
A
Ethylene
B
Gibberellic acid
C
Auxin
D
1-Methylcyclopropene (1-MCP)
Question 36Single Answer
The term "leaching" refers to:
A
Surface evaporation of water
B
Downward movement of nutrients
C
Lateral spread of roots
D
Uptake of water by leaves
Question 37Single Answer
The use of tensiometers helps in determining:
A
Soil pH
B
Soil moisture tension
C
Nutrient content
D
Soil texture
Question 38Single Answer
Which tropical fruit is known for its high bromelain enzyme content?
A
Mango
B
Papaya
C
Pineapple
D
Guava
Question 39Single Answer
What is the phenomenon of "parthenocarpy"?
A
Development of fruit without fertilization
B
Excessive vegetative growth
C
Premature fruit drop
D
Delayed ripening
Question 40Single Answer
What is the primary cause of spongy tissue in mango?
A
Nutrient deficiency
B
High temperature
C
Water stress
D
Genetic factors
Question 41Single Answer
Which fruit is very sensitive to chilling injury?
A
Banana
B
Mango
C
Guava
D
Sapota
Question 42Single Answer
What is the term for the process of removing excess flowers or fruits?
A
Pollination
B
Pruning
C
Thinning
D
Grafting
Question 43Single Answer
What is the main purpose of fruit bagging?
A
To increase fruit size
B
To protect from pests and diseases
C
To improve fruit color
D
All of the above
Question 44Single Answer
What is the term used for the growing of multiple crops in the same area at the same time?
A
Monoculture
B
Polyculture
C
Fallowing
D
Crop rotation
Question 45Single Answer
What is the purpose of using reflective mulches?
A
To increase soil temperature.
B
To repel insects.
C
To enhance light distribution in the canopy.
D
All of the above.
Question 46Single Answer
Which fruit is known as "king of fruits"?
A
Banana
B
Mango
C
Durian
D
Litchi
Question 47Single Answer
Which fruit is known as "queen of fruits"?
A
Mangosteen
B
Litchi
C
Rambutan
D
Pomegranate
Question 48Single Answer
What is the purpose of using windbreaks in orchards?
A
To reduce wind speed
B
To prevent soil erosion
C
To protect from wind damage
D
All of the above
Question 49Single Answer
What is the term for the process of controlled pollination?
A
Natural pollination
B
Cross-pollination
C
Hand pollination
D
Wind pollination
Question 50Single Answer
What is the importance of knowing the chilling requirements of fruits?
A
To determine the suitable growing region
B
To induce flowering
C
To improve fruit quality
D
All of the above
Important Questions Package
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Fruit Science
Question 51Single Answer
What is the purpose of using nets in fruit orchards?
A
To protect from birds
B
To protect from hail
C
To provide shade
D
All of the above
Question 52Single Answer
What is the purpose of using humidity control in fruit storage?
A
To prevent water loss
B
To prevent fungal growth
C
To maintain fruit quality
D
All of the above
Question 53Single Answer
What is the function of Ethephon on fruit?
A
delay fruit ripening.
B
promote fruit ripening.
C
promote vegetative growth.
D
inhibit root growth.
Question 54Single Answer
What is the function of Gibberellic Acid on fruit?
A
promote fruit color.
B
increase fruit size.
C
delay ripening.
D
all of the above.
Question 55Single Answer
What is the purpose of using a refractometer in fruit production?
A
to measure soil PH.
B
to measure the sugar content of fruit.
C
to measure the water content of fruit.
D
to measure the acidity of fruit.
Question 56Single Answer
Which plant growth inhibitor is commonly used to control vegetative growth in mango?
A
Gibberellic acid (GA3)
B
Paclobutrazol
C
Indole acetic acid (IAA)
D
Cytokinin
Question 57Single Answer
Central leader training system is commonly used in Which fruit?
A
Banana
B
Papaya
C
Guava
D
Avocado
Question 58Single Answer
Heading back is a type of:
A
Training
B
Pruning
C
Grafting
D
Budding
Question 59Single Answer
What is the purpose of summer pruning in guava?
A
To promote vegetative growth
B
To induce flowering
C
To remove water sprouts
D
To increase fruit size
Question 60Single Answer
Which pruning method encourages the development of fruiting spurs?
A
Heading back
B
Thinning out
C
Dehorning
D
Tipping
Question 61Single Answer
Which fruit fly is a major pest of mango?
A
Bactrocera dorsalis
B
Aphids
C
Mealybugs
D
Whiteflies
Question 62Single Answer
Panama wilt is a fungal disease affecting Which crop?
A
Mango
B
Banana
C
Citrus
D
Papaya
Question 63Single Answer
Citrus canker is caused by:
A
Fungus
B
Bacteria
C
Virus
D
Nematode
Question 64Single Answer
What is the role of pheromone traps in pest management?
A
To kill pests directly
B
To monitor pest populations
C
To repel pests
D
To attract beneficial insects
Question 65Single Answer
Which biocontrol agent is used against mealybugs?
A
Trichoderma
B
Verticillium
C
Cryptolaemus montrouzieri
D
Pseudomonas
Question 66Single Answer
Which bio-fertilizer helps in nitrogen fixation?
A
Azotobacter
B
Trichoderma
C
Pseudomonas
D
VAM
Question 67Single Answer
Fertigation improves:
A
Nutrient use efficiency
B
Water use efficiency
C
Both a and b
D
Soil pH
Question 68Single Answer
What is the benefit of using vermicompost in fruit orchards?
A
Improved soil structure
B
Enhanced nutrient availability
C
Reduced weed growth
D
All of the above
Question 69Single Answer
What is the benefit of using green manure in fruit orchards?
A
Increased organic matter
B
added nutrients.
C
improved soil structure.
D
all of the above.
Question 70Single Answer
Which organic practice helps in weed management?
A
Mulching
B
Chemical herbicides
C
Synthetic fertilizers
D
Pesticide application
Question 71Single Answer
What is the role of calcium in extending fruit shelf-life?
A
To delay ripening
B
To maintain cell wall integrity
C
To improve fruit color
D
To enhance sugar content
Question 72Single Answer
Controlled atmosphere storage (CAS) helps in:
A
Reducing respiration rate
B
Inhibiting ethylene production
C
Maintaining fruit firmness
D
All of the above
Question 73Single Answer
What is the importance of pre-cooling in post-harvest management?
A
To reduce field heat
B
To prevent fungal decay
C
To extend shelf-life
D
All of the above
Question 74Single Answer
What is the benefit of using bio-wax on fruits?
A
to reduce water loss.
B
to improve shine.
C
to extend shelf life.
D
all of the above.
Question 75Single Answer
Which mango variety is known for its regular bearing habit?
A
Alphonso
B
Dashehari
C
Amrapali
D
Langra
Question 76Single Answer
What is the main cause of bunchy top disease in banana?
A
Fungus
B
Bacteria
C
Virus
D
Nematode
Question 77Single Answer
Which citrus fruit is rich in folic acid?
A
Orange
B
Lemon
C
Grapefruit
D
Mandarin
Question 78Single Answer
What is the main enzyme present in papaya latex?
A
Bromelain
B
Papain
C
Amylase
D
Lipase
Question 79Single Answer
Which guava variety is suitable for processing?
A
Allahabad Safeda
B
Lucknow 49
C
Lalit
D
Arka Mridula
Question 80Single Answer
What is the edible part of sapota?
A
Mesocarp
B
Endocarp
C
Exocarp
D
Pericarp
Question 81Single Answer
Jackfruit is a rich source of:
A
Vitamin C
B
Carbohydrates
C
Fiber
D
All of the above
Question 82Single Answer
What is the main acid present in pineapple?
A
Citric acid
B
Malic acid
C
Tartaric acid
D
Oxalic acid
Question 83Single Answer
Which Annona species is known as custard apple?
A
Annona squamosa
B
Annona cherimola
C
Annona muricata
D
Annona reticulata
Question 84Single Answer
Avocado is a rich source of:
A
Carbohydrates
B
Proteins
C
Healthy fats
D
Vitamin C
Question 85Single Answer
What is the edible part of pomegranate?
A
Mesocarp
B
Aril
C
Endocarp
D
Exocarp
Question 86Single Answer
Which ber variety is known for its early maturity?
A
Umran
B
Gola
C
Seb
D
Katha
Question 87Single Answer
What is the phenomenon of alternate bearing in mango?
A
Fruiting every alternate year
B
Flowering only in specific seasons
C
Fruit drop at alternate stages
D
Ripening at alternate intervals
Question 88Single Answer
What is the main cause of 'choke throat' in banana?
A
Nutrient deficiency
B
Low temperature
C
High humidity
D
Viral infection
Question 89Single Answer
Which citrus rootstock is tolerant to salinity?
A
Rangpur lime
B
Trifoliate orange
C
Cleopatra mandarin
D
Sour orange
Question 90Single Answer
What is the primary method of propagation for papaya?
A
Grafting
B
Budding
C
Seed propagation
D
Layering
Question 91Single Answer
What is the ideal pH range for guava cultivation?
A
4.5-5.5
B
5.5-7.5
C
7.5-8.5
D
8.5-9.5
Question 92Single Answer
What is the primary method of propagation for sapota?
A
Grafting
B
Budding
C
Cuttings
D
Seed propagation
Question 93Single Answer
What is the term for the edible part of jackfruit?
A
Aril
B
Bulb
C
Berry
D
Drupe
Question 94Single Answer
What is the main cause of 'heart rot' in pineapple?
A
Fungal infection
B
Bacterial infection
C
Nutrient deficiency
D
Waterlogging
Question 95Single Answer
Which Annona species is known for its spiny fruits?
A
Annona squamosa
B
Annona cherimola
C
Annona muricata
D
Annona reticulata
Question 96Single Answer
What is the primary method of propagation for avocado?
A
Seed propagation
B
Grafting
C
Layering
D
Budding
Question 97Single Answer
What is the main bioactive compound present in aonla?
A
Lycopene
B
Ellagic acid
C
Ascorbic acid
D
Anthocyanin
Question 98Single Answer
What is the term for the phenomenon of seedlessness in pomegranate?
A
Parthenocarpy
B
Apomixis
C
Stenospermocarpy
D
Polyembryony
Question 99Single Answer
What is the primary method of propagation for ber?
A
Grafting
B
Budding
C
Seed propagation
D
Layering
Question 100Single Answer
Which mango variety is known for its red peel color?
A
Red delicious
B
Tommy Atkins
C
Kent
D
Mallika
Question 101Single Answer
What is the name of the banana disease spread by aphids?
A
Fusarium wilt
B
Bunchy top
C
Black sigatoka
D
Moko disease
Question 102Single Answer
Which citrus fruit is high in Limonene?
A
Lemon
B
Orange
C
Grapefruit
D
all of the above.
Question 103Single Answer
What is a common post harvest problem in papaya?
A
chilling injury
B
latex staining.
C
Anthracnose.
D
all of the above.
Question 104Single Answer
What is the main pest of sapota fruit?
A
Fruit fly.
B
Mealy bug.
C
Stem borer.
D
Leaf miner.
Question 105Single Answer
Which part of the pineapple plant is used for propagation?
A
root cuttings.
B
leaf cuttings.
C
crown slips.
D
stem cuttings.
Question 106Single Answer
What is the main factor that causes fruit cracking in pomegranate?
A
irregular watering.
B
nutrient deficiency.
C
high temperature.
D
all of the above.
Question 107Single Answer
What is the main purpose of de-suckering in banana cultivation?
A
enhance nutrient uptake.
B
improve fruit size.
C
control plant population.
D
all of the above.
Question 108Single Answer
What is the benefit of using Paclobutrazol in Mango?
A
delay flowering.
B
control vegetative growth.
C
increase fruit size.
D
promote root growth.
Question 109Single Answer
Which abiotic factor most commonly limits fruit production in tropical regions?
A
High humidity
B
Water stress
C
Low temperatures
D
Acidic soils
Question 110Single Answer
What is the primary effect of high salinity on fruit crops?
A
Increased root growth
B
Enhanced flowering
C
Ion toxicity and osmotic stress
D
Reduced resistance to diseases
Question 111Single Answer
Which fruit crop is most tolerant to drought conditions?
A
Mango
B
Banana
C
Papaya
D
Guava
Question 112Single Answer
High temperatures during fruit development primarily lead to:
A
Delayed ripening
B
Increased fruit cracking
C
Increased fruit firmness
D
Enhanced fruit size
Question 113Single Answer
Waterlogging in fruit orchards leads to:
A
Increased oxygen availability to roots
B
Enhanced nutrient uptake
C
Root rot and poor growth
D
Increased fruit firmness
Question 114Single Answer
Which of the following is NOT an abiotic factor affecting fruit production?
A
Temperature stress
B
Soil pH
C
Pollinator availability
D
Water stress
Question 115Single Answer
Which management practice can help mitigate the effects of high temperatures in orchards?
A
Excessive irrigation
B
Intercropping with vegetables
C
Mulching and shade netting
D
Increased fertilizer application
Question 116Single Answer
What is the main hormone responsible for flower induction in mango?
A
Auxin
B
Gibberellin
C
Ethylene
D
Cytokinin
Question 117Single Answer
Cross-pollination in papaya is required because it is:
A
Monoecious
B
Dioecious
C
Parthenocarpic
D
A self-pollinated crop
Question 118Single Answer
Which pollinator is most effective for passion fruit pollination?
A
Honeybee
B
Butterfly
C
Carpenter bee
D
Wind
Question 119Single Answer
Which of the following is an important factor influencing pollination efficiency?
A
Temperature
B
Wind speed
C
Humidity
D
All of the above
Question 120Single Answer
Pollination failure in fruit crops may lead to:
A
Increased fruit set
B
Parthenocarpy
C
Poor fruit development
D
Enhanced fruit quality
Question 121Single Answer
The spongy tissue disorder in mango is caused by:
A
Boron deficiency
B
Calcium deficiency
C
High temperature during fruit development
D
Excessive nitrogen fertilization
Question 122Single Answer
Pineapple fruit with a translucent and water-soaked appearance suffers from:
A
Internal browning
B
Black heart
C
Water core
D
Soft nose disorder
Question 123Single Answer
Which physiological disorder is associated with calcium deficiency in mango?
A
Jelly seed
B
Spongy tissue
C
Sunburn
D
Fruit cracking
Question 124Single Answer
Litchi fruit cracking is primarily caused by:
A
Excess irrigation
B
Calcium deficiency
C
Sudden changes in humidity
D
Potassium toxicity
Question 125Single Answer
The maturity index for harvesting bananas is based on:
A
Color change
B
Sugar content
C
Peel thickness
D
Finger size and angularity
Question 126Single Answer
Which fruit is commonly stored under controlled atmosphere (CA) storage conditions?
A
Banana
B
Mango
C
Apple
D
Papaya
Question 127Single Answer
Ethylene gas is used for:
A
Delaying ripening
B
Enhancing fruit size
C
Accelerating ripening
D
Preventing fungal infection
Question 128Single Answer
Which packaging material is best suited for exporting mangoes?
A
Wooden crates
B
Plastic bags
C
Corrugated fiberboard boxes
D
Metal containers
Question 129Single Answer
Agri Export Zones (AEZ) aim to:
A
Increase local fruit consumption
B
Promote fruit processing for industrial use
C
Boost exports by improving infrastructure and logistics
D
Restrict fruit imports
Question 130Single Answer
India is the largest exporter of Which tropical fruit?
A
Mango
B
Banana
C
Pineapple
D
Guava
Question 131Single Answer
The main competitor of India in mango exports is:
A
Mexico
B
Brazil
C
Thailand
D
Vietnam
Question 132Single Answer
What is the primary processed product of bananas in export markets?
A
Banana powder
B
Banana puree
C
Banana chips
D
Banana jam
Question 133Single Answer
Which mineral deficiency leads to poor root growth and stunted fruit trees?
A
Nitrogen
B
Phosphorus
C
Potassium
D
Magnesium
Question 134Single Answer
Soil pH affects nutrient availability. Which pH range is ideal for most tropical fruit crops?
A
3.5 – 4.5
B
5.5 – 6.5
C
7.5 – 8.5
D
Above 9.0
Question 135Single Answer
Which of the following fruit crops is highly sensitive to waterlogging?
A
Guava
B
Mango
C
Banana
D
Papaya
Question 136Single Answer
The main reason for flower and fruit drop in mango during high temperatures is:
A
Pollination failure
B
Increased respiration and water loss
C
Disease infection
D
Excess nitrogen fertilization
Question 137Single Answer
Which plant hormone is responsible for delaying flowering in pineapples?
A
Ethylene
B
Gibberellins
C
Abscisic acid
D
Cytokinin
Question 138Single Answer
Parthenocarpy is a process where fruit develops:
A
Without fertilization
B
With incomplete pollination
C
Due to cross-pollination
D
After fruit thinning
Question 139Single Answer
Which type of honeybee is the most efficient pollinator in tropical fruit orchards?
A
Apis cerana indica
B
Apis dorsata
C
Apis mellifera
D
Trigona iridipennis
Question 140Single Answer
The best time for artificial pollination in date palm is:
A
Early morning
B
Afternoon
C
Evening
D
Anytime
Question 141Single Answer
Soft nose disorder in mango is caused by:
A
Excessive nitrogen
B
Calcium deficiency
C
Magnesium toxicity
D
Over-irrigation
Question 142Single Answer
Water core disorder in apples and pineapples is due to:
A
Boron toxicity
B
Excess sugar accumulation in cells
C
Magnesium deficiency
D
Viral infection
Question 143Single Answer
Which disorder in papaya is related to boron deficiency?
A
Internal browning
B
Corky spot
C
Sunscald
D
Jelly seed
Question 144Single Answer
Chilling injury in tropical fruits occurs when stored at temperatures:
A
Above 30°C
B
Below 5°C
C
Between 10-15°C
D
At room temperature
Question 145Single Answer
The ideal storage temperature for ripening bananas is:
A
5°C
B
10°C
C
15°C
D
20°C
Question 146Single Answer
The most effective method to extend the shelf life of mangoes is:
A
Cold storage
B
Wax coating
C
Vacuum packaging
D
Freezing
Question 147Single Answer
The maturity index for harvesting pineapple is based on:
A
Size of the fruit
B
Color break from green to yellow
C
Number of leaves on the crown
D
Stem diameter
Question 148Single Answer
In controlled atmosphere (CA) storage, Which gas is reduced to slow down ripening?
A
Oxygen
B
Nitrogen
C
Ethylene
D
Carbon dioxide
Question 149Single Answer
The edible coating used to improve fruit shelf life is primarily made of:
