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Horticulture, Floriculture & Pomology (Agriculture & Crop Sciences) Solved Questions & Notes (2026) - Apex Rankers

Agricultural & Veterinary Sciences > Agriculture & Crop Sciences > Horticulture, Floriculture & Pomology

100 Total Questions
~150 mins Read Time
1 Subject Areas
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Q. 1 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Which vegetative propagation technique is standardly used for commercial citrus cultivars (Kinnow)?
A
Seed sowing
B
T-budding (Shield budding) on Rough Lemon / Sour Orange rootstock
✓ Correct
C
Air layering
D
Hardwood cutting
💡 Step-by-Step Explanation & Concept Rationale
T-budding ensures uniform scion vigor, disease tolerance, and high fruit yield.
Q. 2 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
Kinnow mandarin was developed through a hybrid cross of:
A
Lemon x Lime
B
King tangor x Willowleaf mandarin
✓ Correct
C
Sweet orange x Grapefruit
D
Pummelo x Citron
💡 Step-by-Step Explanation & Concept Rationale
Kinnow was bred by Dr. H.B. Frost in 1935 by crossing Citrus nobilis and Citrus deliciosa.
Q. 3 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Which synthetic auxin is universally used as a commercial rooting hormone for stem cuttings?
A
Gibberellic acid (GA3)
B
Indole-3-butyric acid (IBA)
✓ Correct
C
Ethylene
D
Abscisic acid (ABA)
💡 Step-by-Step Explanation & Concept Rationale
IBA stimulates adventitious root initiation in hardwood and semi-hardwood cuttings.
Q. 4 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
Commercial propagation of date palm trees is best achieved through:
A
Grafting
B
Seeds
C
Basal offshoots (Suckers)
✓ Correct
D
Stem cuttings
💡 Step-by-Step Explanation & Concept Rationale
Offshoots maintain genetic trueness and known gender identity of mother palms.
Q. 5 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Which fruit crop is known as the 'King of Fruits' in Pakistan?
A
Apple
B
Mango (Mangifera indica)
✓ Correct
C
Citrus
D
Guava
💡 Step-by-Step Explanation & Concept Rationale
Mango is Pakistan's premier subtropical fruit, renowned for Chaunsa and Sindhri varieties.
Q. 6 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
The physiological disorder 'Spongy Tissue' in mango fruits is caused by:
A
Zinc toxicity
B
Over-irrigation
C
Fungal infection
D
Thermal breakdown and premature pulp fermentation
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
High ground convective heat during fruit maturity induces enzymatic breakdown in pulp.
Q. 7 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Which vegetable crop belongs to the family Alliaceae and is propagated by cloves?
A
Ginger
B
Onion
C
Potato
D
Garlic (Allium sativum)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Garlic forms compound bulbs consisting of vegetative cloves used for planting.
Q. 8 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
What is the primary objective of pruning in deciduous fruit orchards (Apples, Peaches)?
A
Regulate fruit load, improve sunlight penetration, and stimulate fruiting spurs
✓ Correct
B
Reduce root size
C
Prevent leaf fall
D
Stop flowering
💡 Step-by-Step Explanation & Concept Rationale
Pruning maintains an open canopy, balances vegetative/reproductive growth, and enhances fruit color.
Q. 9 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Which flower is popularly cultivated for commercial cut-flower production in winter in Pakistan?
A
Marigold only
B
Lotus
C
Gladiolus and Rose
✓ Correct
D
Sunflower only
💡 Step-by-Step Explanation & Concept Rationale
Gladiolus spikes and cut roses represent the largest commercial floral trade in Pakistan.
Q. 10 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
Modified atmosphere packaging (MAP) of fresh fruits extends shelf life primarily by:
A
Dehydrating fruit pulp
B
Exposing to ethylene
C
Freezing the fruit to -20°C
D
Reducing Oxygen (O2) and increasing Carbon Dioxide (CO2) concentrations to slow respiration
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Lowered O2 and elevated CO2 suppress fruit respiration rate and delay senescence.
Q. 11 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In applied field conditions: Which vegetative propagation technique is standardly used for commercial citrus cultivars (Kinnow)?
A
Air layering
B
Seed sowing
C
Hardwood cutting
D
T-budding (Shield budding) on Rough Lemon / Sour Orange rootstock
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
T-budding ensures uniform scion vigor, disease tolerance, and high fruit yield.
Q. 12 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
In applied field conditions: Kinnow mandarin was developed through a hybrid cross of:
A
Sweet orange x Grapefruit
B
Lemon x Lime
C
King tangor x Willowleaf mandarin
✓ Correct
D
Pummelo x Citron
💡 Step-by-Step Explanation & Concept Rationale
Kinnow was bred by Dr. H.B. Frost in 1935 by crossing Citrus nobilis and Citrus deliciosa.
Q. 13 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In applied field conditions: Which synthetic auxin is universally used as a commercial rooting hormone for stem cuttings?
A
Abscisic acid (ABA)
B
Gibberellic acid (GA3)
C
Indole-3-butyric acid (IBA)
✓ Correct
D
Ethylene
💡 Step-by-Step Explanation & Concept Rationale
IBA stimulates adventitious root initiation in hardwood and semi-hardwood cuttings.
Q. 14 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
In applied field conditions: Commercial propagation of date palm trees is best achieved through:
A
Stem cuttings
B
Grafting
C
Basal offshoots (Suckers)
✓ Correct
D
Seeds
💡 Step-by-Step Explanation & Concept Rationale
Offshoots maintain genetic trueness and known gender identity of mother palms.
Q. 15 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In applied field conditions: Which fruit crop is known as the 'King of Fruits' in Pakistan?
A
Citrus
B
Mango (Mangifera indica)
✓ Correct
C
Guava
D
Apple
💡 Step-by-Step Explanation & Concept Rationale
Mango is Pakistan's premier subtropical fruit, renowned for Chaunsa and Sindhri varieties.
Q. 16 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
In applied field conditions: The physiological disorder 'Spongy Tissue' in mango fruits is caused by:
A
Zinc toxicity
B
Over-irrigation
C
Thermal breakdown and premature pulp fermentation
✓ Correct
D
Fungal infection
💡 Step-by-Step Explanation & Concept Rationale
High ground convective heat during fruit maturity induces enzymatic breakdown in pulp.
Q. 17 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In applied field conditions: Which vegetable crop belongs to the family Alliaceae and is propagated by cloves?
A
Potato
B
Onion
C
Garlic (Allium sativum)
✓ Correct
D
Ginger
💡 Step-by-Step Explanation & Concept Rationale
Garlic forms compound bulbs consisting of vegetative cloves used for planting.
Q. 18 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
In applied field conditions: What is the primary objective of pruning in deciduous fruit orchards (Apples, Peaches)?
A
Regulate fruit load, improve sunlight penetration, and stimulate fruiting spurs
✓ Correct
B
Reduce root size
C
Prevent leaf fall
D
Stop flowering
💡 Step-by-Step Explanation & Concept Rationale
Pruning maintains an open canopy, balances vegetative/reproductive growth, and enhances fruit color.
Q. 19 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In applied field conditions: Which flower is popularly cultivated for commercial cut-flower production in winter in Pakistan?
A
Lotus
B
Gladiolus and Rose
✓ Correct
C
Marigold only
D
Sunflower only
💡 Step-by-Step Explanation & Concept Rationale
Gladiolus spikes and cut roses represent the largest commercial floral trade in Pakistan.
Q. 20 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
In applied field conditions: Modified atmosphere packaging (MAP) of fresh fruits extends shelf life primarily by:
A
Reducing Oxygen (O2) and increasing Carbon Dioxide (CO2) concentrations to slow respiration
✓ Correct
B
Exposing to ethylene
C
Freezing the fruit to -20°C
D
Dehydrating fruit pulp
💡 Step-by-Step Explanation & Concept Rationale
Lowered O2 and elevated CO2 suppress fruit respiration rate and delay senescence.
Q. 21 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In agricultural practice: Which vegetative propagation technique is standardly used for commercial citrus cultivars (Kinnow)?
A
Air layering
B
Seed sowing
C
Hardwood cutting
D
T-budding (Shield budding) on Rough Lemon / Sour Orange rootstock
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
T-budding ensures uniform scion vigor, disease tolerance, and high fruit yield.
Q. 22 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
In agricultural practice: Kinnow mandarin was developed through a hybrid cross of:
A
King tangor x Willowleaf mandarin
✓ Correct
B
Lemon x Lime
C
Sweet orange x Grapefruit
D
Pummelo x Citron
💡 Step-by-Step Explanation & Concept Rationale
Kinnow was bred by Dr. H.B. Frost in 1935 by crossing Citrus nobilis and Citrus deliciosa.
Q. 23 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In agricultural practice: Which synthetic auxin is universally used as a commercial rooting hormone for stem cuttings?
A
Ethylene
B
Abscisic acid (ABA)
C
Gibberellic acid (GA3)
D
Indole-3-butyric acid (IBA)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
IBA stimulates adventitious root initiation in hardwood and semi-hardwood cuttings.
Q. 24 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
In agricultural practice: Commercial propagation of date palm trees is best achieved through:
A
Stem cuttings
B
Grafting
C
Seeds
D
Basal offshoots (Suckers)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Offshoots maintain genetic trueness and known gender identity of mother palms.
Q. 25 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In agricultural practice: Which fruit crop is known as the 'King of Fruits' in Pakistan?
A
Mango (Mangifera indica)
✓ Correct
B
Apple
C
Citrus
D
Guava
💡 Step-by-Step Explanation & Concept Rationale
Mango is Pakistan's premier subtropical fruit, renowned for Chaunsa and Sindhri varieties.
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