Mock Test - Horticulture and Vegetable Science
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Question No. 1
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Which of the following is the richest source of Vitamin C?
A.
Amla
B.
Barbados Cherry
C.
Guava
D.
Citrus
Question No. 2
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Which physiological disorder of mango is characterized by the breakdown of internal tissue?
A.
Spongy Tissue
B.
Black Tip
C.
Mango Malformation
D.
Leaf Webber
Question No. 3
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Kinnow mandarin is a cross between 'King' and which other variety?
A.
Willow Leaf
B.
Sweet Orange
C.
Sour Orange
D.
Grapefruit
Question No. 4
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Which element's deficiency causes 'Whiptail' disorder in Cauliflower?
A.
Boron
B.
Molybdenum
C.
Nitrogen
D.
Calcium
Question No. 5
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What is the botanical name of the 'Queen of Fruits', Mangosteen?
A.
Garcinia mangostana
B.
Litchi chinensis
C.
Punica granatum
D.
Ananas comosus
Question No. 6
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The 'Blossom End Rot' in tomatoes is primarily caused by the deficiency of which nutrient?
A.
Potassium
B.
Magnesium
C.
Calcium
D.
Zinc
Question No. 7
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Which propagation method is commercially used for Papaya?
A.
Stem Cuttings
B.
Seed
C.
Veneer Grafting
D.
Air Layering
Question No. 8
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Which gas is universally known as the fruit-ripening hormone?
A.
Cytokinin
B.
Gibberellic Acid
C.
Ethylene
D.
Abscisic Acid
Question No. 9
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In onion, the red color of the outer skin is due to the presence of which pigment?
A.
Anthocyanin
B.
Lycopene
C.
Carotene
D.
Quercetin
Question No. 10
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Pusa Snowball K-1 is a popular variety of which vegetable crop?
A.
Cabbage
B.
Broccoli
C.
Cauliflower
D.
Knol Khol
Question No. 11
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Which part of the clove plant yields the commercial spice?
A.
Dried bark
B.
Dried flower bud
C.
Dried seed
D.
Fresh leaves
Question No. 12
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What is the term used for the practice of removing male buds in banana after the completion of female phase?
A.
Desuckering
B.
Propping
C.
Denavelling
D.
Mattocking
Question No. 13
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Which fruit crop requires 'Chilling hours' for proper flowering and fruiting?
A.
Papaya
B.
Apple
C.
Mango
D.
Guava
Question No. 14
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Which vector transmits the Yellow Vein Mosaic Virus (YVMV) in Okra?
A.
Aphid
B.
Whitefly
C.
Thrips
D.
Jassid
Question No. 15
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What is the ideal temperature range for tuberization in potatoes?
A.
10-12°C
B.
18-20°C
C.
25-28°C
D.
30-35°C
Question No. 16
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Which preservative is commonly used for fruit juices with naturally high color (like Phalsa or Jamun)?
A.
Potassium metabisulphite
B.
Sodium benzoate
C.
Citric acid
D.
Ascorbic acid
Question No. 17
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The pungency in garlic is primarily due to the presence of which compound?
A.
Allyl propyl disulphide
B.
Diallyl disulphide
C.
Capsaicin
D.
Isothiocyanate
Question No. 18
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Which of the following is a non-climacteric fruit?
A.
Mango
B.
Banana
C.
Papaya
D.
Grape
Question No. 19
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Sindhu, a seedless variety of mango, is a cross between which two varieties?
A.
Ratna x Alphonso
B.
Alphonso x Neelum
C.
Neelum x Alphonso
D.
Dashehari x Neelum
Question No. 20
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Which physiological disorder in grapes is caused by Boron deficiency?
A.
Coulure
B.
Pink berry
C.
Hen and chicken
D.
Berry drop
Question No. 21
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T-budding is the most common commercial method of propagation for which ornamental flower?
A.
Chrysanthemum
B.
Marigold
C.
Rose
D.
Carnation
Question No. 22
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A system of planting in which one additional tree is planted in the center of a square is called?
A.
Hexagonal System
B.
Quincunx System
C.
Triangular System
D.
Contour System
Question No. 23
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Little leaf of brinjal is transmitted by which insect vector?
A.
Whitefly
B.
Leafhopper
C.
Aphid
D.
Mealybug
Question No. 24
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The economic part of Cabbage is technically known as?
A.
Curd
B.
Head
C.
Bulb
D.
Stem
Question No. 25
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Which state is the largest producer of apples in India?
A.
Himachal Pradesh
B.
Jammu and Kashmir
C.
Uttarakhand
D.
Arunachal Pradesh
Question No. 26
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The True Potato Seed (TPS) rate required for one hectare of land is approximately?
A.
10-20 g
B.
100-150 g
C.
500-600 g
D.
1-2 kg
Question No. 27
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Curing is an important post-harvest operation for which of the following crops?
A.
Tomato
B.
Potato
C.
Onion
D.
Cabbage
Question No. 28
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Black heart of potato is a physiological disorder caused by?
A.
Excess soil moisture
B.
Lack of oxygen during storage
C.
Boron deficiency
D.
High soil temperature
Question No. 29
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What is the base chromosome number (x) of the Rosaceae family (Apple/Pear)?
A.
17
B.
11
C.
9
D.
7
Question No. 30
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Which flower crop is commonly known as 'Sword Lily'?
A.
Tuberose
B.
Orchid
C.
Gladiolus
D.
Carnation
Question No. 31
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Arka Kalyan is an improved variety of which crop?
A.
Tomato
B.
Onion
C.
Chilli
D.
Brinjal
Question No. 32
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In which fruit crop is 'Bahar treatment' (crop regulation) commonly practiced in India?
A.
Apple
B.
Guava
C.
Banana
D.
Papaya
Question No. 33
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Which technique is used to develop virus-free plants?
A.
Anther culture
B.
Meristem culture
C.
Embryo rescue
D.
Callus culture
Question No. 34
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Which variety of papaya is known for producing the highest yield of papain?
A.
Pusa Dwarf
B.
Co-2
C.
Co-5
D.
Pusa Delicious
Question No. 35
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The concept of 'Zero Energy Cool Chamber' (ZECC) works on the principle of?
A.
Mechanical refrigeration
B.
Evaporative cooling
C.
Liquid nitrogen cooling
D.
Vacuum cooling
Question No. 36
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The practice of 'Earthing up' is most critical in which crop?
A.
Potato
B.
Tomato
C.
Pea
D.
Spinach
Question No. 37
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A form of asexual propagation where a branch is induced to root while still attached to the mother plant is?
A.
Grafting
B.
Layering
C.
Budding
D.
Cutting
Question No. 38
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Pungency in chilli is due to the presence of which alkaloid?
A.
Capsanthin
B.
Capsaicin
C.
Piperine
D.
Curcumin
Question No. 39
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Which disease caused the famous 'Irish Potato Famine' in 1845?
A.
Early Blight
B.
Late Blight
C.
Wart Disease
D.
Black Scurf
Question No. 40
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What is the required isolation distance for certified seed production of cabbage?
A.
1600 meters
B.
1000 meters
C.
500 meters
D.
100 meters
Question No. 41
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In horticulture, what does the term 'Pomology' refer to?
A.
Study of vegetables
B.
Study of flowers
C.
Study of fruits
D.
Study of post-harvest
Question No. 42
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Olericulture deals with the scientific study of?
A.
Spices
B.
Fruits
C.
Medicinal plants
D.
Vegetables
Question No. 43
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Which rootstock is used for high-density planting of apple?
A.
M-9
B.
MM-111
C.
M-27
D.
M-7
Question No. 44
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The bitterness in cucumber is caused by the presence of?
A.
Cucurbitacin
B.
Momordicin
C.
Sinigrin
D.
Diosgenin
Question No. 45
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Which chemical is commercially used for de-greening of citrus fruits?
A.
IBA
B.
Ethrel
C.
NAA
D.
Cytokinin
Question No. 46
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What is the origin place of Tomato?
A.
India
B.
China
C.
Peru (South America)
D.
Mediterranean region
Question No. 47
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Which element regulates the opening and closing of stomata in plants?
A.
Nitrogen
B.
Phosphorus
C.
Potassium
D.
Zinc
Question No. 48
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What is the botanical name of Black Pepper, the 'King of Spices'?
A.
Elettaria cardamomum
B.
Piper nigrum
C.
Coriandrum sativum
D.
Curcuma longa
Question No. 49
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Which crop is known as 'Vegetable meat'?
A.
Soybean
B.
Cowpea
C.
French bean
D.
Pea
Question No. 50
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Blanching of vegetables before freezing is primarily done to?
A.
Improve color
B.
Inactivate enzymes
C.
Enhance sweetness
D.
Destroy all bacteria
Question No. 51
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The edible part of a pomegranate is?
A.
Fleshy receptacle
B.
Juicy seed coat (Aril)
C.
Mesocarp
D.
Thalamus
Question No. 52
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Which of the following is a dioecious vegetable?
A.
Pointed gourd
B.
Bottle gourd
C.
Pumpkin
D.
Cucumber
Question No. 53
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Which of the following describes the sex expression of a muskmelon plant?
A.
Monoecious
B.
Andromonoecious
C.
Gynoecious
D.
Dioecious
Question No. 54
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Which physiological disorder of tomato is caused by high temperature and direct sunlight?
A.
Blossom end rot
B.
Sunscald
C.
Fruit cracking
D.
Puffiness
Question No. 55
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Pusa Ruby is an early yielding variety of which crop?
A.
Onion
B.
Brinjal
C.
Tomato
D.
Chilli
Question No. 56
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The National Research Centre for Banana (NRCB) is located at?
A.
Trichy (Tamil Nadu)
B.
Jalgaon (Maharashtra)
C.
Lucknow (UP)
D.
Muzaffarpur (Bihar)
Question No. 57
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Pungency in radish is due to the presence of which compound?
A.
Isothiocyanate
B.
Capsaicin
C.
Allyl propyl disulphide
D.
Sinigrin
Question No. 58
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Which test is used to determine the pectin content in fruit extract for jelly making?
A.
Iodine test
B.
Alcohol test
C.
Brix test
D.
Acid test
Question No. 59
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What is the ideal TSS (Total Soluble Solids) for preparing fruit jam?
A.
40-45%
B.
55-60%
C.
68-70%
D.
80-85%
Question No. 60
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Which spice is obtained from the stigma of the flower?
A.
Clove
B.
Nutmeg
C.
Saffron
D.
Mace
Question No. 61
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Gummosis in citrus is caused by which pathogen?
A.
Bacteria
B.
Virus
C.
Phytophthora fungus
D.
Nematode
Question No. 62
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Which fruit is known as 'Poor man's apple'?
A.
Ber
B.
Guava
C.
Amla
D.
Custard Apple
Question No. 63
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Which is the leading flower crop cultivated in India in terms of area?
A.
Rose
B.
Jasmine
C.
Marigold
D.
Tuberose
Question No. 64
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What is the planting distance recommended for normal tissue-cultured banana?
A.
1.8 x 1.8 m
B.
3.0 x 3.0 m
C.
1.2 x 1.2 m
D.
2.5 x 2.5 m
Question No. 65
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Which element is crucial for pollen germination and tube growth?
A.
Zinc
B.
Iron
C.
Boron
D.
Manganese
Question No. 66
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Multinucleate condition is typically found in the tapetum of which crop?
A.
Many crops
B.
Only ornamentals
C.
It is an anomaly
D.
Never found
Question No. 67
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The origin of the C.V. 'Alphonso' mango can be traced back to which country's introduction?
A.
Spain
B.
Portugal
C.
England
D.
France
Question No. 68
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The term 'climacteric' was first coined by?
A.
Kidd and West
B.
Mendel
C.
Darwin
D.
Hooker
Question No. 69
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Which vegetable is the highest source of Vitamin A?
A.
Carrot
B.
Beetroot
C.
Radish
D.
Turnip
Question No. 70
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A serious pest of potato in the field as well as in storage is?
A.
White grub
B.
Cutworm
C.
Potato tuber moth
D.
Aphid
Question No. 71
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The phenomenon where a fruit develops without fertilization is known as?
A.
Polyembryony
B.
Parthenocarpy
C.
Apomixis
D.
Xenia
Question No. 72
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In which crop is 'Staking' a highly recommended cultural practice?
A.
Tomato
B.
Potato
C.
Onion
D.
Garlic
Question No. 73
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Which flower is known as the 'Glory of the East'?
A.
Rose
B.
Orchid
C.
Chrysanthemum
D.
Carnation
Question No. 74
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What is the chief propagation method for Gladiolus?
A.
Seeds
B.
Bulbs
C.
Corms
D.
Tubers
Question No. 75
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Kufri Sindhuri is a late-maturing variety of which crop?
A.
Tomato
B.
Potato
C.
Chilli
D.
Sweet Potato
Question No. 76
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The disorder 'Browning' in cauliflower is managed by the application of?
A.
Ammonium sulphate
B.
Borax
C.
Sodium molybdate
D.
Zinc sulphate
Question No. 77
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Which of the following is considered a heavy feeder crop?
A.
Pea
B.
Cabbage
C.
Carrot
D.
Radish
Question No. 78
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Which of the following has the highest chromosome number in fruits?
A.
Mulberry
B.
Apple
C.
Papaya
D.
Mango
Question No. 79
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What type of inflorescence is found in Banana?
A.
Spadix
B.
Raceme
C.
Umbel
D.
Panicle
Question No. 80
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Areca nut belongs to which family?
A.
Arecaceae
B.
Anacardiaceae
C.
Rubiaceae
D.
Myrtaceae
Question No. 81
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The highest grape productivity in the world is recorded in which country?
A.
Italy
B.
France
C.
India
D.
USA
Question No. 82
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Which organic acid is predominantly found in Grapes?
A.
Citric acid
B.
Malic acid
C.
Tartaric acid
D.
Ascorbic acid
Question No. 83
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Which root vegetable is scientifically known as
Daucus carota
?
A.
Beetroot
B.
Turnip
C.
Radish
D.
Carrot
Question No. 84
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The practice of 'Topping' and 'Desuckering' is famous in which commercial crop?
A.
Tea
B.
Tobacco
C.
Coffee
D.
Sugarcane
Question No. 85
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The most suitable fruit for making Jelly is?
A.
Mango
B.
Guava
C.
Banana
D.
Papaya
Question No. 86
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Cauliflorous bearing habit (fruits borne directly on the trunk) is observed in?
A.
Mango
B.
Jackfruit
C.
Apple
D.
Litchi
Question No. 87
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The Central Institute for Arid Horticulture (CIAH) is located at?
A.
Bikaner
B.
Jodhpur
C.
Lucknow
D.
Bangalore
Question No. 88
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Which is the primary pollinator for oil palm?
A.
Wind
B.
Honey bees
C.
Elaeidobius kamerunicus (Weevil)
D.
Bats
Question No. 89
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Pruning in grapes in North India is generally done during which month?
A.
May
B.
January
C.
August
D.
October
Question No. 90
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In onion, premature production of the seed stalk before bulb formation is called?
A.
Bolting
B.
Buttoning
C.
Sprouting
D.
Splitting
Question No. 91
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Which state is the 'Spice Garden of India'?
A.
Karnataka
B.
Kerala
C.
Andhra Pradesh
D.
Tamil Nadu
Question No. 92
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What is the critical stage of irrigation in potato?
A.
Stolon formation
B.
Tuber bulking
C.
Both A and B
D.
Flowering
Question No. 93
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Fruit cracking in litchi is primarily due to the deficiency of?
A.
Calcium
B.
Boron
C.
Potassium
D.
Nitrogen
Question No. 94
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Which chemical is used to control sprouting of onions in storage?
A.
Maleic Hydrazide (MH)
B.
Ethrel
C.
Gibberellic Acid
D.
IAA
Question No. 95
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The variety 'Arka Amulya' is a hybrid of?
A.
Tomato
B.
Guava
C.
Papaya
D.
Mango
Question No. 96
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The optimum seed rate for sowing normal Kharif onion is?
A.
8-10 kg/ha
B.
2-3 kg/ha
C.
15-20 kg/ha
D.
25-30 kg/ha
Question No. 97
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Pineapple is a native of which country?
A.
India
B.
Brazil
C.
South Africa
D.
China
Question No. 98
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Coffee leaf rust, a devastating disease, is caused by?
A.
Hemileia vastatrix
B.
Phytophthora infestans
C.
Fusarium oxysporum
D.
Xanthomonas campestris
Question No. 99
Marks
+1
-0
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National Horticulture Board (NHB) was established in which year?
A.
1984
B.
1995
C.
2001
D.
2005
Question No. 100
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Time
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Marmalade is essentially a jelly in which pieces of what are suspended?
A.
Apple peel
B.
Citrus peel
C.
Mango pulp
D.
Pineapple chunks
Question No. 101
Marks
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-0
Time
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What is the botanical name of the major Indian commercial mushroom (Button mushroom)?
A.
Pleurotus sajor-caju
B.
Volvariella volvacea
C.
Agaricus bisporus
D.
Lentinula edodes
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