Cultivation Practices of Guava & Papaya
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Question No. 1
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Which of the following is a prominent seedless variety of Guava?
A.
Allahabad Safeda
B.
Sardar (Lucknow-49)
C.
Seedless
D.
Arka Amulya
Question No. 2
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For commercial cultivation of Papaya, which method of propagation is primarily recommended?
A.
Air Layering
B.
Cutting
C.
Seed Propagation
D.
Grafting
Question No. 3
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Guava Wilt disease, a serious problem in Guava cultivation, is caused by which of the following pathogens?
A.
Phytophthora parasitica
B.
Fusarium oxysporum
f. sp.
psidii
C.
Colletotrichum gloeosporioides
D.
Cercospora psidii
Question No. 4
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Symptoms of intervenal chlorosis, yellowing of older leaves, and sometimes purplish discoloration of veins in Papaya plants are indicative of a deficiency in which nutrient?
A.
Iron (Fe)
B.
Manganese (Mn)
C.
Magnesium (Mg)
D.
Nitrogen (N)
Question No. 5
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Which horticultural practice involves removing a ring of bark from the main stem or branches of Guava trees to induce flowering and improve fruit set?
A.
Espalier
B.
Girdling (Ringing)
C.
Staking
D.
Layering
Question No. 6
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Papaya plants thrive best in which type of climate?
A.
Arid and hot
B.
Cool temperate
C.
Tropical and subtropical
D.
Mediterranean
Question No. 7
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The recommended planting distance for high-density planting of Guava, typically using varieties like Sardar or Allahabad Safeda, is often around:
A.
10m x 10m
B.
6m x 6m
C.
3m x 3m
D.
1.5m x 1.5m
Question No. 8
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Which of the following Papaya varieties is gynodioecious and widely preferred for commercial cultivation due to its reliable fruit set and good fruit quality?
A.
Pusa Dwarf
B.
Coorg Honey Dew
C.
Pusa Giant
D.
Washington
Question No. 9
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Which insect pest is notorious for causing damage to Guava fruits by laying eggs inside them, leading to maggot infestation and fruit spoilage?
A.
Fruit fly (
Bactrocera dorsalis
)
B.
Mealybug (
Planococcus citri
)
C.
Scale insect (
Pulvinaria psidii
)
D.
Aphid (
Aphis gossypii
)
Question No. 10
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The optimal storage temperature for freshly harvested Papaya fruits to prolong their shelf life is generally considered to be around:
A.
0-2 °C
B.
5-7 °C
C.
10-13 °C
D.
18-22 °C
Question No. 11
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Which statement accurately describes the flowering and fruiting pattern of Guava in tropical conditions?
A.
It has a single distinct flowering and fruiting season annually.
B.
It flowers and fruits almost throughout the year, with peak seasons.
C.
Flowering occurs only after a prolonged dry period.
D.
Fruiting is typically restricted to the winter months.
Question No. 12
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In Papaya cultivation, the practice of planting multiple seedlings per pit and then thinning them out is done primarily to:
A.
Increase overall plant density for higher yield.
B.
Ensure a higher proportion of hermaphrodite or female plants.
C.
Provide protection against soil-borne diseases.
D.
Conserve irrigation water during establishment.
Question No. 13
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Guava grows best on well-drained, deep soils with a pH range of:
A.
3.5 - 4.5 (Highly acidic)
B.
5.0 - 5.5 (Moderately acidic)
C.
6.0 - 7.5 (Slightly acidic to neutral)
D.
8.0 - 9.0 (Alkaline)
Question No. 14
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The physiological disorder in Papaya characterized by small, hard, and deformed fruits with dark, sticky latex exudation is known as:
A.
Chilling Injury
B.
Water Spot
C.
Sticky Fruit Syndrome
D.
Internal Black Spot
Question No. 15
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Which pruning system is generally recommended for Guava to maintain a manageable tree size, facilitate harvesting, and improve light penetration?
A.
Central Leader System
B.
Modified Central Leader System
C.
Open Centre (Vase) System
D.
Espalier System
Question No. 16
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A dwarf, gynodioecious variety of Papaya, suitable for high-density planting and known for its uniform fruit size and good keeping quality, is:
A.
Pusa Delicious
B.
Sunrise Solo
C.
Taiwan Red Lady-786
D.
Washington
Question No. 17
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Which chemical is commonly used as a post-harvest ripening agent for Guava fruits?
A.
Gibberellic Acid (GA3)
B.
Ethylene
C.
Auxins
D.
Cytokinins
Question No. 18
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The Papaya Ring Spot Virus (PRSV) is a devastating disease in Papaya cultivation. Which of the following is the primary vector for PRSV transmission?
A.
Whiteflies
B.
Thrips
C.
Mites
D.
Aphids
Question No. 19
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Consider the following statements regarding Guava cultivation:
1. Guava is a climacteric fruit.
2. Severe pruning in Guava is generally avoided as it negatively impacts yield.
3. The optimal time for pruning Guava in India is often after the monsoon crop.
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. 20
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Match the following Papaya varieties with their characteristic features:
A.
I-C, II-A, III-D, IV-B
B.
I-B, II-A, III-C, IV-D
C.
I-C, II-D, III-A, IV-B
D.
I-A, II-C, III-B, IV-D
Question No. 21
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The botanical name of Guava is
Psidium guajava
. To which family does it belong?
A.
Anacardiaceae
B.
Myrtaceae
C.
Rosaceae
D.
Rutaceae
Question No. 22
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What is the primary reason for pruning old or unproductive Papaya trees?
A.
To remove pest-infested branches.
B.
To induce flowering in non-flowering plants.
C.
To rejuvenate the plant and promote new growth and fruiting at a lower height.
D.
To facilitate better pollination.
Question No. 23
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Intercropping in Guava orchards is a common practice during the initial years. Which of the following crops is generally suitable as an intercrop in Guava?
A.
Sugarcane
B.
Turmeric
C.
Maize
D.
Wheat
Question No. 24
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The latex extracted from immature Papaya fruits is a rich source of which proteolytic enzyme, widely used in various industries?
A.
Amylase
B.
Pectinase
C.
Papain
D.
Bromelain
Question No. 25
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A deficiency of Boron in Guava plants typically leads to which of the following symptoms?
A.
Yellowing of older leaves
B.
Stunted new growth, hardening and cracking of fruits
C.
Intervenal chlorosis on young leaves
D.
Purple discoloration of leaf margins
Question No. 26
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Arrange the following steps in the Papaya cultivation process in a logical chronological order:
1. Transplanting seedlings
2. Seed sowing in nursery
3. Field preparation and pit digging
4. Fruit harvesting
5. Thinning of plants for sex identification
A.
2, 3, 1, 5, 4
B.
3, 2, 1, 5, 4
C.
2, 1, 3, 5, 4
D.
3, 1, 2, 5, 4
Question No. 27
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Which of the following is an important rootstock for Guava, known for imparting resistance to Guava Wilt disease?
A.
Psidium friedrichsthalianum
B.
Psidium cattleianum
C.
Psidium chinense
D.
Psidium littorale
Question No. 28
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An average healthy Papaya tree, under good management practices, typically yields how many fruits per plant per year?
A.
10-20 fruits
B.
30-50 fruits
C.
70-100 fruits
D.
120-150 fruits
Question No. 29
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For effective long-distance transport, Guava fruits are typically harvested at what stage of maturity?
A.
Fully ripe with soft flesh
B.
Half-ripe with distinct color break
C.
Physiologically mature but hard green
D.
Immature, small, and firm
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