1. Tomato belongs to which botanical family?
A. Fabaceae
B. Solanaceae
C. Cucurbitaceae
D. Malvaceae
Answer: B
Rationale: Tomato is a member of the Solanaceae family.
2. The botanical name of tomato is:
A. Solanum tuberosum
B. Solanum melongena
C. Solanum lycopersicum
D. Capsicum annuum
Answer: C
Rationale: The cultivated tomato is Solanum lycopersicum.
3. Tomato is classified as a:
A. Root vegetable
B. Leaf vegetable
C. Fruit vegetable
D. Tuber crop
Answer: C
Rationale: The edible part is a fruit, botanically a berry.
4. The center of origin of tomato is:
A. India
B. Africa
C. South America
D. Europe
Answer: C
Rationale: Tomato originated in South America.
5. Tomato is primarily a:
A. Cross-pollinated crop
B. Self-pollinated crop
C. Apomictic crop
D. Vegetatively propagated crop
Answer: B
Rationale: Tomato is predominantly self-pollinated.
6. Chromosome number of tomato is:
A. 2n = 12
B. 2n = 18
C. 2n = 24
D. 2n = 48
Answer: C
Rationale: Tomato has 2n = 24 chromosomes.
7. Tomato flowers are:
A. Unisexual
B. Male only
C. Female only
D. Bisexual
Answer: D
Rationale: Tomato flowers are hermaphrodite.
8. The inflorescence in tomato is:
A. Spike
B. Raceme
C. Cymose
D. Panicle
Answer: C
Rationale: Tomato bears a cymose inflorescence.
9. Tomato fruit is botanically classified as:
A. Drupe
B. Berry
C. Capsule
D. Pepo
Answer: B
Rationale: Tomato fruit is a true berry.
10. Optimum temperature for tomato growth is:
A. 10–15°C
B. 15–20°C
C. 20–25°C
D. 30–35°C
Answer: C
Rationale: Optimal growth and fruit set occur at 20–25°C.
11. Tomato is sensitive to:
A. Drought
B. Salinity
C. Frost
D. Wind
Answer: C
Rationale: Frost damages flowers and fruits severely.
12. Best soil for tomato cultivation is:
A. Heavy clay
B. Sandy soil
C. Well-drained loam
D. Waterlogged soil
Answer: C
Rationale: Well-drained loamy soil favors root growth.
13. Ideal soil pH for tomato is:
A. 4.0–4.5
B. 5.0–5.5
C. 6.0–6.8
D. 8.0–8.5
Answer: C
Rationale: Slightly acidic to neutral pH is optimal.
14. Tomato is commonly propagated by:
A. Cuttings
B. Layering
C. Seeds
D. Grafting only
Answer: C
Rationale: Tomato is mainly seed-propagated.
15. Recommended seed rate for transplanted tomato is:
A. 100–200 g/ha
B. 300–500 g/ha
C. 1–1.5 kg/ha
D. 3–4 kg/ha
Answer: C
Rationale: About 1–1.5 kg seed is required per hectare.
16. Seedlings of tomato are transplanted at:
A. 15–20 days
B. 25–30 days
C. 30–35 days
D. 45–50 days
Answer: C
Rationale: 30–35 day old healthy seedlings are ideal.
17. Recommended spacing for tomato is:
A. 30 × 15 cm
B. 45 × 30 cm
C. 60 × 45 cm
D. 90 × 60 cm
Answer: C
Rationale: Proper spacing improves aeration and yield.
18. Tomato is classified as a:
A. Short-day plant
B. Long-day plant
C. Day-neutral plant
D. Shade-loving plant
Answer: C
Rationale: Tomato is day-neutral.
19. The red color of tomato is due to:
A. Carotene
B. Anthocyanin
C. Lycopene
D. Chlorophyll
Answer: C
Rationale: Lycopene is the main red pigment.
20. Major nutrient requirement of tomato is:
A. Nitrogen
B. Phosphorus
C. Potassium
D. Balanced NPK
Answer: D
Rationale: Balanced nutrition is essential for yield and quality.
21. Excess nitrogen in tomato results in:
A. Early fruiting
B. Better color
C. Excess vegetative growth
D. Increased lycopene
Answer: C
Rationale: High nitrogen promotes foliage at the expense of fruits.
22. Blossom end rot in tomato is due to:
A. Nitrogen deficiency
B. Calcium deficiency
C. Potassium deficiency
D. Iron deficiency
Answer: B
Rationale: Calcium deficiency causes tissue breakdown at fruit end.
23. Fruit cracking in tomato is mainly due to:
A. Boron deficiency
B. Uneven irrigation
C. Low temperature
D. Viral infection
Answer: B
Rationale: Sudden water uptake causes cracking.
24. Tomato requires maximum water during:
A. Seedling stage
B. Vegetative stage
C. Flowering and fruiting
D. Maturity
Answer: C
Rationale: Water stress at this stage reduces yield.
25. Staking in tomato is done to:
A. Reduce fertilizer use
B. Increase plant height
C. Prevent lodging and fruit rot
D. Reduce irrigation
Answer: C
Rationale: Staking improves aeration and fruit quality.
26. Pruning in tomato is mainly practiced in:
A. Bush varieties
B. Determinate varieties
C. Indeterminate varieties
D. Wild tomatoes
Answer: C
Rationale: Indeterminate types benefit from pruning.
27. Major pest of tomato is:
A. Red pumpkin beetle
B. Fruit fly
C. Tomato fruit borer
D. Termite
Answer: C
Rationale: Helicoverpa armigera is the most destructive pest.
28. Tomato leaf curl disease is transmitted by:
A. Aphid
B. Thrips
C. Whitefly
D. Leafhopper
Answer: C
Rationale: Whitefly transmits tomato leaf curl virus.
29. Early blight of tomato is caused by:
A. Phytophthora infestans
B. Alternaria solani
C. Fusarium oxysporum
D. Colletotrichum spp.
Answer: B
Rationale: Alternaria solani causes early blight.
30. Late blight of tomato is caused by:
A. Alternaria solani
B. Fusarium spp.
C. Phytophthora infestans
D. Rhizoctonia solani
Answer: C
Rationale: Late blight is caused by P. infestans.
31. Tomato mosaic virus is mainly spread by:
A. Seeds and mechanical contact
B. Insects only
C. Soil only
D. Water
Answer: A
Rationale: TMV spreads mechanically and through seeds.
32. Average yield of tomato is:
A. 10–15 t/ha
B. 20–25 t/ha
C. 30–40 t/ha
D. 60–70 t/ha
Answer: C
Rationale: Average yield is around 30–40 t/ha.
33. Tomato fruits are harvested at:
A. Immature green stage only
B. Fully ripe stage only
C. Different maturity stages
D. Dry stage
Answer: C
Rationale: Harvest stage depends on market distance.
34. Breaker stage in tomato refers to:
A. Green fruit
B. Fully red fruit
C. First appearance of pink color
D. Over-ripe fruit
Answer: C
Rationale: Breaker stage shows initial color change.
35. Tomato is mainly used for:
A. Oil extraction
B. Fiber
C. Fresh consumption and processing
D. Beverage only
Answer: C
Rationale: Used both fresh and processed.
36. Processing tomato varieties are preferred because they have:
A. High acidity and thick pulp
B. Thin skin
C. Large seeds
D. Low TSS
Answer: A
Rationale: These traits suit processing.
37. Total soluble solids (TSS) in tomato is measured by:
A. pH meter
B. EC meter
C. Refractometer
D. Thermometer
Answer: C
Rationale: Refractometer measures °Brix.
38. Tomato root system is:
A. Shallow fibrous
B. Deep tap root
C. Adventitious only
D. Rhizomatous
Answer: B
Rationale: Tomato has a tap root system.
39. Tomato seed type is:
A. Recalcitrant
B. Orthodox
C. Viviparous
D. Intermediate
Answer: B
Rationale: Seeds can be dried and stored.
40. Seed viability of tomato is:
A. 1–2 years
B. 3–4 years
C. 6–8 years
D. 10 years
Answer: B
Rationale: Tomato seeds remain viable for 3–4 years.
41. Mulching in tomato helps in:
A. Increasing soil erosion
B. Moisture conservation
C. Reducing sunlight
D. Increasing soil salinity
Answer: B
Rationale: Mulch conserves moisture and suppresses weeds.
42. Tomato flowers open mainly during:
A. Night
B. Early morning
C. Afternoon
D. Evening
Answer: B
Rationale: Anthesis occurs in the morning.
43. Poor fruit set in tomato at high temperature is due to:
A. Pollen sterility
B. Calcium deficiency
C. Virus infection
D. Root damage
Answer: A
Rationale: High temperature reduces pollen viability.
44. Grafting in tomato is mainly done to:
A. Increase fruit size
B. Improve disease resistance
C. Increase sweetness
D. Reduce maturity period
Answer: B
Rationale: Grafting helps manage soil-borne diseases.
45. Tomato is unsuitable for:
A. Sandy loam soils
B. Well-drained soils
C. Waterlogged soils
D. Slightly acidic soils
Answer: C
Rationale: Waterlogging leads to root diseases.
46. Tomato hybrids are preferred because they:
A. Require no fertilizer
B. Are always disease-free
C. Have higher yield and uniformity
D. Do not need irrigation
Answer: C
Rationale: Hybrids express heterosis.
47. The main economic part of tomato plant is:
A. Leaf
B. Stem
C. Fruit
D. Root
Answer: C
Rationale: Fruits are harvested and marketed.
48. Tomato responds well to which micronutrient?
A. Iron
B. Boron
C. Molybdenum
D. All of the above
Answer: D
Rationale: Micronutrients support growth and yield.
49. Tomato is economically important mainly due to:
A. Medicinal alkaloids
B. Fiber value
C. Nutritional value and processing industry
D. Timber value
Answer: C
Rationale: Tomato is nutritionally rich and widely processed.
50. Tomato cultivation is most profitable when:
A. Grown without irrigation
B. Grown under frost
C. Grown with proper nutrient and pest management
D. Grown in waterlogged soils
Answer: C
Rationale: Balanced management ensures high yield and quality.
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