HORTICULTURE JRF 2020

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HORTICULTURE JRF 2020 Question Paper

HORTICULTURE JRF 2020

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Q.1 Seed crops of coriander should be harvested  when?

  1. 10% turn yellow
  2. 30% turn yellow
  3. 50% turn yellow
  4. 70% turn yellow

50% turn yellow

Q.2 Given below are two statements

Statement I: Rangpur lime (Citrus limonia) is considered as most suitable rootstock for Nagpur mandarin

Statement II: This rootstock does not have resistance to gummosis and root rot

In light of the above statements, choose the most appropriate answer from the option given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Statement I is correct but Statement II is false

Q.3 Pithiness is the physiological disorders of which one of the following vegetables?

  1. Radish
  2. Tomato
  3. Cucumber
  4. Sweet potato

Radish

Q.4 The export of which one of the following Basmati rice varieties earns the highest share of foreign exchange of total rice exports?

  1. Pusa 1121
  2. Improved Pusa Basmati
  3. Pusa Basmati 1
  4. Pusa 1509

Pusa 1121

Q.5 Cole crops are considered to have evolved from which of the following common ancestor?

  1. Brassica oleracea var.capitata
  2. Brassica oleracea var.sylvestris
  3. Brassica oleracea var.italica
  4. Brassica oleracea var.acephala

Brassica oleracea var.sylvestris

Q.6 Melting flesh peaches mesocarp undergo softening at?

  1. First stage of ripening
  2. Mid stage of ripening
  3. Last stage of ripening
  4. Senescence phase

Last stage of ripening

Q.7 The most suitable vegetable to be grown in saline soil is?

  1. Cabbage
  2. Watermelon
  3. Potato
  4. Beet

Beet

Q.8 Maintenance of gynoecious muskmelon line can be done by the application of?

  1. MCEB
  2. NAA
  3. GA3
  4. PCPA

MCEB

Q.9 Match List I with List II

List I List II
A.Gladiolus I.Caryophyllaceae
B.Marigold II.Asparagaceae
C.Tuberose III.Iridaceae
D.Carnation IV.Asteraceae

Choose the correct answer from the options given below:

  1. A-II, B-III, C-I, D-IV
  2. A-I, B-II, C-IV, D-III
  3. A-IV, B-I, C-III, D-II
  4. A-III, B-IV, C-II, D-I

A-III, B-IV, C-II, D-I

Q.10 In which of the following temperate fruit crop, the double growth curve is followed?

  1. Apple
  2. Pear
  3. Peach
  4. Plum

Peach

Q.11 Which of the following is foliage annual?

  1. Kochia
  2. Ice plant
  3. Marigold
  4. Zinia

Kochia

Q.12 In which system of training, trees are trained to form a V shape?

  1. Vertical Centre
  2. Kniffin System
  3. Tatura trellis
  4. Spindle bush

Tatura trellis

Q.13 Solasodine is present in?

  1. Tomato
  2. Brinjal
  3. Garlic
  4. Onion

Brinjal

Q.14 Grafting in vegetable crops is useful for managing?

  1. Fusarium wilt
  2. Bud necrosis viruS
  3. Mites
  4. Downey mildew

Fusarium wilt

Q.15 Girdling is generally practiced in case of?

  1. Mango
  2. Grapes
  3. Papaya
  4. Guava

Grapes

Q.16 Given below are two statements

Statement I: A guava wilt resistant rootstock have been developed by crossing Psidium mole x Psidium guajava

Statement II: Root-knot nematodes (Meloidogyne) has become a serious threat to guava as it causes a reduction in plant vigour and wilting of leaves

In light of the above statements, choose the most appropriate answer from the option given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.17 Given below are two statements

Statement I: The rice variety Pusa 1460 was developed by marker assisted selection (MAS).

Statement II: The genes for bacterial blight resistance have been introgressed in Pusa Basmati

In light of the above statements, choose the most appropriate answer from the options given below

  1. Statement I is correct but Statement II is false
  2. Both Statement I and Statement II are false
  3. Both Statement I and Statement II are true
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.18 Which of the following is salinity tolerant rootstock of mango?

  1. Vellai Kollumban
  2. Rumani
  3. Olour
  4. Both Kurukkan & Olour

Both Kurukkan & Olour

Q.19 Flame of the Forest is botanically known as?

  1. Callistemon lanceolaus
  2. Cassia fistula
  3. Butea monosperma
  4. Cassia javanica

Butea monosperma

Q.20 Match List I with List II

List I List II
A.Granulation I.Mango
B.Black Tip II.Citrus
C.Fruit cracking III.Grapes
D.Pink blush IV.Tomato

Choose the correct answer from the options given below

  1. A-II, B-I, C-IV, D-III
  2. A-II, B-I, C-III, D-IV
  3. A-III, B-I, C-IV, D-II
  4. A-III, B-I, C-II, D-IV

A-II, B-I, C-IV, D-III

Q.21 Hollyhock and sweet pea are suitable annuals for?

  1. Hanging basket
  2. Screening purpose
  3. Oil extraction
  4. Rockery

Screening purpose

Q.22 Which of the following crop is most prone to red spider mite?

  1. Carnation
  2. Tuberose
  3. Gladiolus
  4. Calendula

Carnation

Q.23 Vesicular arbuscular mycorrhiza are?

  1. Free living organisms
  2. Obligate symbiont
  3. Facultative symbiont
  4. Obligate parasite

Obligate symbiont

Q.24 National Botanical Research Institute is located at?

  1. New Delhi
  2. Lucknow
  3. Vadodara
  4. Chennai

Lucknow

Q.25 Match List I with List II

List I List II
A.Khaira disease of rice I.Copper
B.Brown heart in radish II.Chloride
C.Herring bone disease of tomato III.Zn deficiency
D.Stem melanosis disease of wheat IV.Phosphorus

Choose the correct answer from the options given below

  1. A-III, B-IV, C-II, D-I
  2. A-II, B-III, C-I, D-IV
  3. A-III, B-II, C-I, D-IV
  4. A-IV, B-III, C-I, D-II

A-III, B-IV, C-II, D-I

Q.26 The optimum average daily temperature for wheat sowing is?

  1. 22-23°C
  2. 15-20°C
  3. 25-27C
  4. 28-30°C

22-23°C

Q.27 Match List I with List II

List I List II
A.Berry elongation in grapes I.IBA
B.Single Sigmoid Curve III.GA3
C.Induce rooting III.Mallus domestica
D.Veraison stage in grape IV.Onset of ripening

Choose the correct answer from the options given below

  1. A-II, B-II, C-IV, D-I
  2. A-III, B-IV, C-II, D-I
  3. A-I, B-II, C-IV, D-III
  4. A-II, B-III, C-I, D-IV

A-II, B-III, C-I, D-IV

Q.28 Application of Remote sensing and GIS based technologies are essential for?

  1. Integrated Farming
  2. Intensive Farming
  3. Precision Farming
  4. Mixed Farming

Precision Farming

Q.29 Given below are two statements

Statement I: Cytokinin promotes chloroplast development and chlorophyll synthesis

Statement II: Cytokinin delays senescence of cut flowers

In light of the above statements, choose the most appropriate answer from the option given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.30 Woody or semi woody perennial plants with little or no trunk are known as?

  1. Herb
  2. Shrub
  3. Tree
  4. Annual

Shrub

Q.31 Which direction should be preferred for the planting of windbreak to protect orchards from strong winds?

  1. South-West
  2. North-East
  3. South-East
  4. North-West

North-West

Q.32 Which was the first Hybrid Tea Rose developedin the world?

  1. La France
  2. Pixie
  3. Gold Star
  4. Queen Elizabeth

La France

Q.33 Given below are two statements

Statement I: Gynoecious line of bitter gourd has been developed in India

Statement II: Hybrids developed by use of gynoecious line will have predominantly gynoecious sex form

In light of the above statements, choose the most appropriate answer from the options given below

  1. Statement I is correct but Statement II is false
  2. Statement I is incorrect and Statement II is true
  3. Both Statement I and Statement II are false
  4. Both Statement I and Statement II are true

Both Statement I and Statement II are true

Q.34 The botanical term of banana inflorescence is?

  1. Thyrse
  2. Catkin
  3. Hypanthodium
  4. Spadix

Thyrse

Q.35 Removal of field heat of flowers by keeping them at lower temperature is known as?

  1. Stratification
  2. Hardening
  3. Pulsing
  4. Pre-cooling

Pre-cooling

Q.36 Which of the following are informal style gardens?

  1. English
  2. Persian
  3. Mughal
  4. Japanese

Choose the correct answer from the options given below:

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

A and D only

Q.37 The most common sex form of tapioca is?

  1. Monoeceious
  2. Dioecious
  3. Bisexual
  4. Gynoecious

Monoeceious

Q.38 2,4-Dichlorophenoxy acetic acid (2, 4-D) is a?

  1. Growth regulator
  2. Mutagen
  3. Gaseous hormone
  4. Herbicide

Choose the correct answer from the options given below

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

A &D only

Q.39 Which one of the following is known as ‘mood food’?

  1. Watermelon
  2. Muskmelon
  3. Red Cherry
  4. Datepalm

Watermelon

Q.40 ZW-20 which expresses the coat protein (CP) gene is a transgenic line of?

  1. Cucumber
  2. Summer squash
  3. Watermelon
  4. Muskmelon

Summer squash

Q.41 Match List I with List II

List I List II
A.Bitter pit I.Zinc
B.Little leaf II.Calcium
C.Fruit cracking III.Potassium
D.Marginal burning of leaf IV.Boron

Choose the correct answer from the options given below

  1. A-I, B-II, C-III, D-IV
  2. A-II, B-I, C-IV, D-III
  3. A-II, B-I, C-III, D-IV
  4. A-III, B-II, C-I, D-IV

A-II, B-I, C-IV, D-III

Q.42 Given below are two statements

Statement I: Whiptail is a physiological disorder of cole crops caused by a deficiency of Molybdenum

Statement II: It occurs frequently in saline and alkaline soils

In light of the above statements, choose the most appropriate answer from the option given below

  1. Both Statement I and Statement II are true
  2. Statement I is correct but Statement II is false
  3. Both Statement I and Statement II are false
  4. Statement I is incorrect but Statement II is true

Statement I is correct but Statement II is false

Q.43 Which one of the following is a coloured seeded variety of grape?

  1. Sonaka
  2. Manik Chaman
  3. Tas-A-Ganesh
  4. Bangalore Blue

Bangalore Blue

Q.44 Which of the following is most commonly used rooting hormone?

  1. BAP
  2. IBA
  3. ABA
  4. GA3

IBA

Q.45 MDU-1 is a variety of chilli developed through?

  1. Pure line Selection
  2. Mutation breeding
  3. Mass Selection
  4. Pedigree method

Mutation breeding

Q.46 Given below are two statements:

Statement I: Leaf curl of tomato caused by ToLCNDV is a serious disease of North India

Statement II: ToLCNDV is a monopartite virus

In light of the above statements, choose the most appropriate answer from the options given below

  1. Statement I is correct but Statement II is false
  2. Both Statement I and Statement II are true
  3. Both Statement I and Statement II are false
  4. Statement I is incorrect and Statement II is true

Statement I is correct but Statement II is false

Q.47 The parentage of muskmelon cultivar, Punjab Hybrid is?

  1. Ms-1 x Durgapur Madhu
  2. Ms-2 x Hara Madhu
  3. Ms-1 x Hara Madhu
  4. Ms-1 x Durgapur Madhu

Ms-1 x Hara Madhu

Q.48 Mango is subjected to hot water treatment before export to manage?

  1. Fruit Fly
  2. Viruses
  3. Anthracnose
  4. Spongy tissue

Fruit Fly

Q.49 Which of the following chemicals is used for doubling of chromosomes?

  1. MH
  2. CCC
  3. NAA
  4. Colchicine

Colchicine

Q.50 Which of the following is warm season turfgrass?

  1. Zoysia
  2. Rye
  3. Kentucky blue
  4. Creeping bent

Zoysia

Q.51 Which of the following is a temperate orchid?

  1. Cymbidium
  2. Oncidium
  3. Vanda
  4. Aerids

Cymbidium

Q.52 The number of genotypes in a F2 population of digenic cross would be?

  1. 4
  2. 9
  3. 16
  4. 8

9

Q.53 The first bi-specific origin of Banana was suggested by?

  1. Lineaus
  2. Simmonds
  3. Cheesman
  4. Kurz

Kurz

Q.54 Which crop does NOT have a chilling requirement for flowering?

  1. Cabbage
  2. Tulip
  3. Beet Leaf
  4. Beetroot

Beet Leaf

Q.55 Sauerkraut is prepared from?

  1. Cucumber
  2. Cabbage
  3. Tomato
  4. Carrot

Cabbage

Q.56 Match List I with List II

List I List II
A.Monoecious I.Ridge gourd (Satputia)
B.Dioecious II.Cucumber
C.Gynoecious III.Pumpkin
D.Hermaphrodite IV.Pointed gourd

Choose the correct answer from the options given below:

  1. A-III, B-IV, C- II, D-I
  2. A-I, B-II, C-III, D-IV
  3. A-II, B-III, C-IV, D-I
  4. A-IV, B-l, C- II, D-III

A-III, B-IV, C- II, D-I

Q.57 Given below are two statements:

Statement I: Tuberose is susceptible to root-knot nematode

Statement II: Root-knot nematode in tuberose can be minimized or controlled by crop rotation with marigold

In the light of the above statements, choose the most appropriate answer from the options given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Q.58 Match List I with List II

List I List II
A.Lycopene I.Beetroot
B.Beta cyanin II.Carrot
C.Beta carotene III.Chilli
D.Capsanthin IV.Watermelon

Choose the correct answer from the options given below

  1. A-I, B-II, C-III, D-IV
  2. A-IV, B-I, C-II, D-III
  3. A-II, B-III, C-I, D-IV
  4. A-II, B-IV, C-I, D-II

A-IV, B-I, C-II, D-III

Q.59 Match List I with List II

List I List II
A.Cut Spray type I.Snow Ball
B.Cut standard type II.Ravi Kiran
C.Garland purpose type III.Birbal Sahani
D.Pot mums type IV.Pusa Sona

Choose the correct answer from the options given below

  1. A-II, B-I, C-IV, D-III
  2. A-II, B-I, C-III, D-IV
  3. A-III, B-I, C-II, D-IV
  4. A-IV, B-I, C-III, D-II

A-II, B-I, C-III, D-IV

Q.60 The progenitor of cultivated cucumber is?

  1. Cucumis humifractus
  2. Cucumis hytivus
  3. Cucumis metuliferus
  4. Cucumis sativus var. hardwickii

Cucumis sativus var. hardwickii

Q.61 One year old apple trees consisting of a single stem are known as?

  1. Whip
  2. Vertigo
  3. Feather
  4. Monarch

Whip

Q.62 Which among the following is the richest source of carbohydrates?

  1. Date palm
  2. Bael
  3. Banana
  4. Custard apple

Date palm

Q.63 The preservation of cell, tissues and organs of a plant under ultra-low temperature (-196°C) is called?

  1. Hyperbolic preservation
  2. Liquid preservation
  3. Hypobolic preservation
  4. Cryopreservation

Cryopreservation

Q.64 The local Indian traditional drink “Kanji” is?

  1. A fermented spiced beverage made from the juice of black carrots
  2. A non-fermented spiced beverage made from the juice of black carrots
  3. Fermented juice of beetroot
  4. Fermented juice of orange carrot

A fermented spiced beverage made from the juice of black carrots

Q.65 Which one of the following is a pre-emergence herbicide?

  1. A.Atrazine
  2. B.Pendimethalin
  3. C.Glyphosate
  4. D.2, 4-D

Choose the correct answer from the options given below:

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

A and B only

Q.66 In stone fruit, the period of suspended growth coincides with?

  1. Fall of sepals
  2. Final swell
  3. Pith softening
  4. Pith hardening

Pith hardening

Q.67 Rani Sahiba is a variety of?

  1. Rose
  2. Chrysanthemum
  3. Orchid
  4. Carnation

Rose

Q.68 Given below are two statements

Statement I: Pineapple is separated from other genera of family Bromeliaceae on the basis of the syncarpous type of fruit

Statement II: Its juice contains a very low amount of a digestive enzyme bromelin

In light of the above statements, choose the most appropriate answer from the option given below

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement l is incorrect but Statement II is true

Statement I is correct but Statement II is false

Q.69 If crosses were made with 8 parents in the diallel mating system (excluding reciprocals), what would be total numbers of F1‘s?

  1. 56
  2. 64
  3. 32
  4. 28

28

Q.70 In epicotyl grafting of mango, callusing stage for a graft union extends from?

  1. 10-30 days
  2. 30-60 days
  3. 60-90 days
  4. 90-120 days

10-30 days

Q.71 Which of the following is a winter annual?

  1. Balsam
  2. Zinnia
  3. Snapdragon
  4. Kochia

Snapdragon

Q.72 Fenugreek seeds contain?

  1. Solanine
  2. Rotenone
  3. Solasodine
  4. Diosgenin

Diosgenin

Q.73 Which one of the following wild relatives of tomato is the most important donor for drought resistance?

  1. Solanum pimpinellifolium
  2. Solanum cheesmanii
  3. Solanum pennelli
  4. Solanum chmielewskii

Solanum pennelli

Q.74 Zinc is responsible for the biosynthesis of which plant auxin?

  1. NAA
  2. IBA
  3. IAA
  4. 2, 4-D

IAA

Q.75 Pusa Aditi is a newly developed variety of?

  1. Mango
  2. Guava
  3. Grapes
  4. Banana

Grapes

Q.76 The Pd1 gene from Allium roylei conferring resistance to downy mildew is located on?

  1. Chromosome 3
  2. Chromosome 5
  3. Chromosome 6
  4. Chromosome 8

Chromosome 3

Q.77 Suppressed climacteric fruit is related to?

  1. Apple
  2. Banana
  3. Peach
  4. Plum

Plum

Q.78 When female papaya plant is intercrossed with hermaphrodite, the ratio of female and hermaphrodite in progeny will be?

  1. 1:2
  2. 1:1
  3. 1:3
  4. 2:1

1:1

Q.79 Apple cultivar having triploid chromosomes are?

  1. Golden Delicious
  2. Gravenstein
  3. Jonagold
  4. Mcintosh

Choose the correct answer from the options given below

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

B & C only



Q.80 Statement I: Phyllody and Witches Broom disease of Cucurbits is caused by Phytoplasma.


Statement II: This phytoplasma is transmitted by leaf hopper


In the light of the above statements, choose the most appropriate answer from the options given below


    

  1.  Statement I is correct but Statement II is false
    2. 

  2.  Both Statement I and Statement II are false
    3. 

  3.  Both Statement I and Statement II are true
    4. 

  4.  Statement I is incorrect and Statement II is true
    5. 



Both Statement I and Statement II are false


Q.81 Coconut toddy is obtained by tapping the?


    

  1.  Unopened spadix
    2. 

  2.  Unopened spathe
    3. 

  3.  Opened spathe
    4. 

  4.  Opened spadix
    5. 



Unopened spadix


Q.82 Match List I with List II






List I
List II




A.Pusa Arunima
I.Alphonso x Banganpalli




B.Ratna
II.Neelum x Alphonso




C.Sindhu
III.Ratna x Alphonso




D.Arka Puneet
IV.Amrapali x Sensation






Choose the correct answer from the options given below


    

  1.  A-IV, B-II, C-III, D-I
    2. 

  2.  A-IV, B-II, C-I, D-III
    3. 

  3.  A-IV, B-III, C-II, D-I
    4. 

  4.  A-II, B-IV, -III, D-I
    5. 



A-IV, B-II, C-III, D-I


Q.83 Match List I with List II






List I
List II




A.Diamond back moth
I.Plasmodiophora brassicae




B.Club root
II.Plutella xylostella




C.Aphids
III. Peronospora parastica




D.Downy mildew
IV.Myzus persicae






Choose the correct answer from the options given below:


    

  1.  A-II, B-I, C-IV, D-III
    2. 

  2.  A-I, A-II, C-III, D-IV
    3. 

  3.  A-II, B-III, C-l, D-IV,
    4. 

  4.  A-III, B-II C-I, D-IV
    5. 



A-II, B-I, C-IV, D-III


Q.84 The stage of inflorescence emergence in pineapple is?


    

  1.  Piping
    2. 

  2.  Red Heart
    3. 

  3.  Rosette
    4. 

  4.  Sorose
    5. 



Red Heart


Q.85 Seed albumin gene AmA1 was cloned from?


    

  1.  Amaranthus tricolor
    2. 

  2.  Amaranthus tristis
    3. 

  3.  Amaranthus dubius
    4. 

  4.  Amaranthus hypocondriacus
    5. 



Amaranthus hypocondriacus


Q.86 Which of the following is propagated by suckers?


    

  1.  Tuberose
    2. 

  2.  Gladiolus
    3. 

  3.  Gaillardia
    4. 

  4.  Chrysanthemum
    5. 



Chrysanthemum


Q.87 Some of the important characteristics of predators are?


    

  1. A.They feed on prey smaller than themselves
    2. 

  2. B.Lady bird beetles are not being used for managing mealybugs and scale insects
    3. 

  3. C.They are free-living and require several preys to complete their life cycle
    4. 

  4. D.They feed on prey bigger than themselves
    5. 



Choose the correct answer from the options given below:


    

  1.  A and C only
    2. 

  2.  B and C only
    3. 

  3.  A and D only
    4. 

  4.  C and D only
    5. 



A and C only


Q.88 The ability of a plant cell to regenerate is known as?


    

  1.  Apomixis
    2. 

  2.  Totipotency
    3. 

  3.  Parthenogenesis
    4. 

  4.  Budding
    5. 



Totipotency


Q.89 Bending is a specific technique being practiced in?


    

  1.  Rose
    2. 

  2.  Carnation
    3. 

  3.  Tuberose
    4. 

  4.  Gerbera
    5. 



Rose


Q.90 The symbol for the gene controlling bitter free cucumber fruits is?


    

  1.  bi/bi
    2. 

  2.  Bi/Bi
    3. 

  3.  Bi/bi
    4. 

  4.  B/b
    5. 



bi/bi


Q.91 At 3.5 mx3.5 m spacing, the number of plants/ha in a hexagonal system could be?


    

  1.  160 plants
    2. 

  2.  222 plants
    3. 

  3.  272 plants
    4. 

  4.  380 plants
    5. 



272 plants


Q.92 Match List I with List II






List I
List II




A.Chrysanthemum
I.Birbal Sahani




B.Carnation
II.Top Secret




C.Rose
III.Arka Agni




D.Marigold
IV.Dona






Choose the correct answer from the options given below


    

  1.  A-IV, B-III, C-I, D-II
    2. 

  2.  A-I, B-IV, C-II, D-III
    3. 

  3.  A-II, B-III, C-IV, D-I
    4. 

  4.  A-III, B-IV, C-I, D-II
    5. 



A-I, B-IV, C-II, D-III


Q.93 The most commercially viable technique for propagation of cashew nut is?


    

  1.  Shoot tip grafting
    2. 

  2.  Softwood grafting
    3. 

  3.  Hardwood grafting
    4. 

  4.  Epicotyl grafting
    5. 



Softwood grafting


Q.94 The permitted sulphur dioxide limit for sweetness in Ready to Serve Beverage (RTS) is?


    

  1.  50 ppm
    2. 

  2.  70 ppm
    3. 

  3.  100 ppm
    4. 

  4.  200 ppm
    5. 



70 ppm


Q.95 Which one of the following fruits has the highest TSS?


    

  1.  Mango
    2. 

  2.  Grape
    3. 

  3.  Jamun
    4. 

  4.  Bael
    5. 



Bael


Q.96 Gradual loss of variability from germplasm of a crop is known as?


    

  1.  Pleiotropy
    2. 

  2.  Mutation
    3. 

  3.  Inbreeding depression
    4. 

  4.  Genetic erosion
    5. 



Genetic erosion


Q.97 Ty-1 gene conferring TYLCV resistance in tomato has been derived from?


    

  1.  Solanum habrochites
    2. 

  2.  Solanum chmieleskii
    3. 

  3.  Solanum chilense
    4. 

  4.  Solanum peruvianum
    5. 



Solanum chilense


Q.98 The ancestor of cultivated sweet potato is?


    

  1.  Ipomea triloba
    2. 

  2.  Ipomea batatas
    3. 

  3.  Ipomea aquatica
    4. 

  4.  Ipomea trifida
    5. 



Ipomea trifida


Q.99 Rashtrapati Bhavan Garden was designed by?


    

  1.  Robert Brown
    2. 

  2.  Edwin Lutyens
    3. 

  3.  Robinson
    4. 

  4.  G.S. Randhawa
    5. 



Edwin Lutyens


Q.100 Citrus rootstock susceptible to Phytophthora and Tristeza are?


    

  1. A.Alemobw
    2. 

  2. B.Rough lemon
    3. 

  3. C.Savage
    4. 

  4. D.X-639
    5. 



Choose the correct answer from the options given below:


    

  1.  A & B only
    2. 

  2.  B & D only
    3. 

  3.  C & D only
    4. 

  4.  A & C only
    5. 



A & B only


Q.101 The most common method of propagation for phalsa (Grewia subinaeqalis) is?


    

  1.  Seeds
    2. 

  2.  Hardwood cutting
    3. 

  3.  Softwood grafting
    4. 

  4.  Budding
    5. 



Seeds


Q.102 Tulip bulbs must be stored/exposed to the following environmental condition for quality flower initiation?


    

  1.  10-12°C for 4-6 weeks
    2. 

  2.  7-9°C for 6-8 weeks
    3. 

  3.  12-14°C for 5-6 weeks
    4. 

  4.  9-11°C for 4-6 weeks
    5. 



7-9°C for 6-8 weeks


Q.103 Which of the following hedges is most suitable for landscaping in the arid region?


    

  1.  Lawsonia inermis
    2. 

  2.  Mussaendra frondosa
    3. 

  3.  Eranthemum bicolor
    4. 

  4.  Galphimia gracilis
    5. 



Lawsonia inermis


Q.104 Which is considered as calcifuge crop?


    

  1.  Mango
    2. 

  2.  Banana
    3. 

  3.  Citrus
    4. 

  4.  Guava
    5. 



Banana


Q.105 ‘Gulkand’ is prepared by mixing sugar and rose petals in the ratio?


    

  1.  3:1
    2. 

  2.  1:1
    3. 

  3.  1:4
    4. 

  4.  1:3
    5. 



1:1


Q.106 Kashi Lalima is the latest variety of?


    

  1.  Okra
    2. 

  2. Carrot
    3. 

  3.  Tomato
    4. 

  4.  Radish
    5. 



Okra


Q.107 Match List I with List II






List I
List II




A.Scab resistance
I.M9




B.Dwarfing rootstock
II.Shalimar Apple-I




C.Low chilling
III.Anna




D.Woolly apple aphid resistance
IV.Merton 793






Choose the correct answer from the options given below


    

  1.  A-II, B-I, C-IV, D-III
    2. 

  2.  A-II, B-I, C-III, D-IV
    3. 

  3.  A-III, B-I, C-II, D-IV
    4. 

  4.  A-IV, B-I, C-III, D-II
    5. 



A-II, B-I, C-III, D-IV


Q.108 Nutritional value of legume vegetables is reduced due to the presence of which of the following inhibitors?


    

  1.  Trypsin
    2. 

  2.  Cystine
    3. 

  3.  Tyrosine
    4. 

  4.  Tryptophan
    5. 



Trypsin


Q.109 The crop having largest area under genetically modified seeds in India is?


    

  1.  Brinjal
    2. 

  2.  Soybean
    3. 

  3.  Cotton
    4. 

  4.  Tomato
    5. 



Cotton


Q.110 Multiple disease resistant variety of tomato is?


    

  1.  Arka Samrat
    2. 

  2.  Arka Rakshak
    3. 

  3.  Arka Vardan
    4. 

  4.  Pusa Rohini
    5. 



Arka Samrat $ Arka Rakshak


Q.111 Which of the following states is the largest producer of annual flowers’ seeds?


    

  1.  Punjab
    2. 

  2.  Karnataka
    3. 

  3.  Tamil Nadu
    4. 

  4.  Kerala
    5. 



Punjab


Q.112 Directorate of Floricultural Research is located at?


    

  1.  Pune
    2. 

  2.  New Delhi
    3. 

  3.  Lucknow
    4. 

  4.  Bengaluru
    5. 



Pune


Q.113 Which one of the following is an attached method of grafting?


    

  1.  Notch grafting
    2. 

  2.  Inarching
    3. 

  3.  Whip grafting
    4. 

  4.  Side grafting
    5. 



Inarching


Q.114 Tree banding is used for the control of?


    

  1.  Drosicha mangifera
    2. 

  2.  Clumetia transversa
    3. 

  3.  Batocera rufomaculata
    4. 

  4.  Eublemma versicolo
    5. 



Drosicha mangifera


Q.115 Given below are two statements


Statement I: Scald is a storage disorder of apple which usually affects the skin only


Statement II: It can be identified by brownish streaks radiating into flesh from the core


In light of the above statements, choose the most appropriate answer from the option given below


    

  1.  Both Statement I and Statement II are true
    2. 

  2.  Both Statement I and Statement II are false
    3. 

  3.  Statement I is correct but Statement II is false
    4. 

  4.  Statement I is incorrect but Statement II is true
    5. 



Statement I is correct but Statement II is false


Q.116 Which Vitis species does NOT have tendrils opposite to the third leaf?


    

  1.  Vitis champini
    2. 

  2.  Vitis rupistris
    3. 

  3.  Vitis vinifera
    4. 

  4.  Vitis labrusca
    5. 



Vitis vinifera


Q.117 Which one of the following is a high-yielding variety of black pepper?


    

  1.  Sreekara
    2. 

  2.  Suprabha
    3. 

  3.  Suroma
    4. 

  4.  Suranjana
    5. 



Sreekara


Q.118 Maturation of male and female reproductive organs of a bisexual flower at different times is known as?


    

  1.  Dichogamy
    2. 

  2.  Dicliny
    3. 

  3.  Cliestogamy
    4. 

  4.  Chasmogamy
    5. 



Dichogamy


Q.119 Andromonoecy sex form is found in which spice crop?


    

  1.  Coriander
    2. 

  2.  Black pepper
    3. 

  3.  All spice
    4. 

  4.  Nutmeg
    5. 



Coriander


Q.120 You want to cultivate onion in North India whose harvest should coincide with a higher price in November-December. Which onion variety will you choose to grow?


    

  1.  Agrifound Light Red
    2. 

  2.  Agrifound Dark Red
    3. 

  3.  Nasik Red
    4. 

  4.  Pusa Red
    5. 



Agrifound Dark Red


HORTICULTURE JRF 2020






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