Cultivation of Exotic Fruits (Passion Fruit, Avocado, Dragon Fruit, Strawberry)

Question No. 1 Marks +1 -0 Time

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Which of the following statements regarding the pollination of Dragon Fruit is TRUE?

1. Dragon fruit flowers are typically self-pollinating and do not require external agents.
2. Most commercial varieties of dragon fruit produce flowers that open during the day and are pollinated by bees.
3. Dragon fruit flowers are predominantly nocturnal, opening at night and requiring nocturnal pollinators or hand pollination.
4. Cross-pollination between different varieties is essential for fruit set in all dragon fruit cultivars.

A. 1 only
B. 2 only
C. 3 only
D. 4 only

Question No. 2 Marks +1 -0 Time

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The botanical name Passiflora edulis corresponds to which exotic fruit?

A. Avocado
B. Dragon Fruit
C. Passion Fruit
D. Strawberry

Question No. 3 Marks +1 -0 Time

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Which of the following is a common vegetative propagation method for strawberry (Fragaria x ananassa)?

A. Budding
B. Layering
C. Runners
D. Grafting

Question No. 4 Marks +1 -0 Time

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Avocado (Persea americana) trees are known for a unique flowering characteristic where individual flowers are functionally female on the first day and male on the second day. This phenomenon is called:

A. Monoecy
B. Dioecy
C. Dichogamy
D. Protogyny

Question No. 5 Marks +1 -0 Time

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Identify the correct sequence of steps for planting strawberry runners in a field, starting from preparation:

1. Mulching
2. Soil preparation and bed formation
3. Irrigation
4. Planting runners

A. 2 - 4 - 1 - 3
B. 2 - 1 - 4 - 3
C. 4 - 2 - 3 - 1
D. 2 - 3 - 4 - 1

Question No. 6 Marks +1 -0 Time

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Which of the following is a significant fungal disease affecting strawberry crops, often causing gray, fuzzy mold on fruits?

A. Powdery Mildew
B. Anthracnose
C. Grey Mould (Botrytis Fruit Rot)
D. Leaf Spot

Question No. 7 Marks +1 -0 Time

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A deficiency of which micronutrient can cause 'Little Leaf' or 'Rosette' symptoms in avocado trees, characterized by small, narrow, and often mottled leaves?

A. Boron
B. Iron
C. Zinc
D. Manganese

Question No. 8 Marks +1 -0 Time

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Passion fruit vines are typically trained on a trellis system. Which of the following is the primary reason for this practice?

A. To encourage deeper root penetration.
B. To increase shade for the developing fruits.
C. To support the climbing habit of the vine and maximize fruit production.
D. To prevent pest infestation by elevating the plant.

Question No. 9 Marks +1 -0 Time

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The variety 'Hass' is the most commercially important cultivar globally for which exotic fruit?

A. Dragon Fruit
B. Passion Fruit
C. Avocado
D. Strawberry

Question No. 10 Marks +1 -0 Time

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Which of the following diseases is a major concern for passion fruit cultivation, causing hardening and distortion of fruits, and yellowing of leaves?

A. Bacterial Canker
B. Passion Fruit Woodiness Virus (PWV)
C. Anthracnose
D. Root Rot (Phytophthora)

Question No. 11 Marks +1 -0 Time

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Dragon fruit (Hylocereus spp.) is botanically classified under which plant family?

A. Rosaceae
B. Myrtaceae
C. Cactaceae
D. Passifloraceae

Question No. 12 Marks +1 -0 Time

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Consider the following statements regarding strawberry cultivation:

1. Strawberries are typically short-day plants, requiring short day lengths for flower initiation.
2. They generally prefer alkaline soils with a pH above 7.5.
3. Commercial strawberry production often involves annual planting of new runners.

Which of the statements given above is/are correct?

A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2 and 3

Question No. 13 Marks +1 -0 Time

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Match the following exotic fruits with their common propagation methods:

Fruit	Propagation Method
1. Avocado	i. Stem Cuttings
2. Dragon Fruit	ii. Grafting/Budding
3. Passion Fruit	iii. Runners
4. Strawberry	iv. Seeds/Cuttings

A. 1-ii, 2-i, 3-iv, 4-iii
B. 1-i, 2-ii, 3-iii, 4-iv
C. 1-iv, 2-iii, 3-ii, 4-i
D. 1-iii, 2-iv, 3-i, 4-ii

Question No. 14 Marks +1 -0 Time

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Which of the following exotic fruits is considered climacteric, meaning it continues to ripen after being harvested?

A. Strawberry
B. Avocado
C. Dragon Fruit
D. Lychee

Question No. 15 Marks +1 -0 Time

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The 'Kaveri' variety is a popular hybrid of which exotic fruit, known for its good yield and fruit quality?

A. Avocado
B. Dragon Fruit
C. Passion Fruit
D. Strawberry

Question No. 16 Marks +1 -0 Time

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For commercial production, dragon fruit plants require strong support structures, typically in the form of concrete or wooden posts. This practice is primarily due to:

A. Their susceptibility to strong winds causing damage if unsupported.
B. Their heavy fruit load and epiphytic, climbing growth habit.
C. The need to elevate fruits to prevent soil-borne diseases.
D. Aesthetic reasons for landscaping and easy harvesting.

Question No. 17 Marks +1 -0 Time

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Which of the following is NOT a general characteristic of the ideal soil for most exotic fruit cultivation discussed (Passion Fruit, Avocado, Dragon Fruit, Strawberry)?

A. Well-drained
B. Rich in organic matter
C. Heavy clay with poor aeration
D. Loamy texture

Question No. 18 Marks +1 -0 Time

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A common pest of strawberry plants, especially in warmer climates, that causes bronzing or stippling on leaves and reduces fruit quality, is:

A. Aphids
B. Leaf miners
C. Spider mites
D. Thrips

Question No. 19 Marks +1 -0 Time

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Which type of flower morphology is typical for avocado (Persea americana) trees, characterized by distinct 'Type A' and 'Type B' varieties based on their daily opening patterns?

A. Perfect flowers (hermaphroditic) without dichogamy.
B. Unisexual flowers (male and female on separate plants - dioecious).
C. Protogynous dichogamous flowers (female first, then male).
D. Protandrous dichogamous flowers (male first, then female).

Question No. 20 Marks +1 -0 Time

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Low temperatures during flowering in passion fruit can lead to:

1. Reduced pollen viability
2. Poor fruit set
3. Increased incidence of fungal diseases

Which of the statements given above is/are correct?

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Question No. 21 Marks +1 -0 Time

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Post-harvest, strawberries are best stored at a temperature range of:

A. 10-15°C (50-59°F)
B. 5-10°C (41-50°F)
C. 0-2°C (32-36°F)
D. Above 15°C (59°F)

Question No. 22 Marks +1 -0 Time

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Which of the following cultural practices is crucial for ensuring proper fruit development and avoiding 'sunburn' in dragon fruit cultivated in regions with intense sunlight?

A. Defoliation
B. Pruning of the main stem
C. Shading or trellising to provide partial shade
D. Excessive irrigation during fruit development

Question No. 23 Marks +1 -0 Time

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The primary objective of pruning in mature passion fruit vines is to:

A. Remove all old wood to encourage new root growth.
B. Control vine vigor, remove diseased/dead wood, and encourage new fruiting wood.
C. Reduce plant size for easier harvesting by making it dwarf.
D. Promote vegetative growth at the expense of fruiting.

Question No. 24 Marks +1 -0 Time

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Avocado root rot, a devastating disease, is primarily caused by which pathogen?

A. Botrytis cinerea
B. Xanthomonas campestris
C. Phytophthora cinnamomi
D. Colletotrichum gloeosporioides

Question No. 25 Marks +1 -0 Time

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Which of the following statements about the ideal climatic conditions for strawberry cultivation is most accurate?

A. Strawberries thrive in hot, humid tropical climates year-round.
B. They prefer cool temperate climates with mild winters and warm summers for optimal fruit production.
C. Strawberries require frost-free conditions throughout their entire growth cycle, including dormancy.
D. They are highly tolerant to drought and high salinity.

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