Horticulture JRF/SRF Test-3

Q2. Epigeous germination is found in which of the following fruit crops?

• A) Mango
• B) Tamarind
• C) Cashewnut
• D) All of these

Q3. The development of seed portion viz. two polar nuclei + sperm nucleus results into which of the following fruit organ?

• A) Seed coat
• B) Perisperm
• C) Endosperm
• D) Zygote

Q4. Which of the following fruit seeds based on storage behavior is classified as recalcitrant seed?

• A) Passion fruit
• B) Date palm
• C) Jackfruit
• D) Phalsa

Q5. Which of the following methods is a renovation/rejuvenation grafting?

• A) Tongue grafting
• B) Buttress grafting
• C) Side-veneer grafting
• D) Epicotyl grafting

Q6. Peach scion grafted on plum rootstock results in which type of incompatibility?

• A) Partial incompatibility
• B) Translocalised incompatibility
• C) Localised incompatibility
• D) None of the above

Q7. Post-set fruit drop is a major problem in commercial cultivation of

• A) Guava
• B) Litchi
• C) Sapota
• D) Mango

Q8. The National Seed Corporation was established in the year

• A) 1983
• B) 1975
• C) 1970
• D) 1963

Q9. Based on photoperiodic response, ‘Papaya’ is classified under as

• A) Long-day plant
• B) Short-day plant
• C) Day-neutral plant
• D) None of the above

Q10. Which of the following has the lateral fruit buds having inflorescence with leafy shoots in leaf axils?

• A) Avocado
• B) Citrus
• C) Guava
• D) Mango

Q11. The Directorate of Seed Research was upgraded to Indian Institute of Seed Science in the year

• A) 2014
• B) 2016
• C) 2004
• D) 2010

Q12. ‘Caprification’ is a type of cross-pollination found in

• A) Bael
• B) Fig
• C) Phalsa
• D) Karonda

Q13. The enzyme responsible for browning of fruits and vegetables:

• A) Lipoxygenase
• B) Polyphenol oxidase
• C) Amylase
• D) Protease

Q14. NRC Grapes is located at:

• A) Nagpur
• B) Pune
• C) Solapur
• D) Trichy

Q15. Environmental stimulation–induced parthenocarpy is:

• A) Obligatory
• B) Facultative
• C) Vegetative
• D) Stimulative

Q16. Heating in greenhouses is due to

• A) PAR
• B) UV
• C) Infrared
• D) Microwaves

Q17. Bower training system commonly used in:

• A) Grapes
• B) Citrus
• C) Plum
• D) Guava

Q18. HDP rootstock for apple:

• A) Crab apple
• B) MM 106
• C) M 27
• D) MM 111

Q19. Mango flowering manipulation chemical:

• A) NAA
• B) ,-D
• C) Paclobutrazol
• D) GA3

Q20. RTS means:

• A) Needs water addition
• B) Low prep
• C) Ready to drink
• D) Freeze quickly

Q21. Papaya sex gene alleles:

• A) M1 & M2
• B) M2 & m
• C) M1 & m
• D) M1, M2 & m

Q22. Not suitable for freezing:

• A) Glass
• B) Plastics
• C) Paper
• D) Metals

Q23. Micrografting removes:

• A) Virus
• B) Fungi
• C) Bacteria
• D) Nematodes

Q24. Seedless mango:

• A) Langra
• B) Alphonso
• C) Amrapali
• D) Sindhu

Q25. Pectin in ripe fruits is:

• A) Pectinic acid
• B) Protopectin
• C) Pectic acid
• D) None

Q26. Fruit thinning in peaches:

• A) GA
• B) IBA
• C) Ethephon
• D) Urea

Q27. Astringency in coffee due to:

• A) Chicory
• B) Caffeine
• C) Chlorogenic acid
• D) Insulin

Q28. Vigorous grape rootstock:

• A) Dogridge
• B) 1613
• C) Salt creek
• D) Temple

Q29. Litchi propagated by:

• A) Air layering
• B) Cutting
• C) Grafting
• D) Budding

Q30. Most used part of Ashwagandha:

• A) Leaves
• B) Seeds
• C) Roots
• D) Flowers

Q31. Cauliflory in:

• A) Jackfruit
• B) Mango
• C) Papaya
• D) Guava

Q32. Grape berry drop controlled by:

• A) 50 ppm NAA
• B) 60 ppm GA
• C) 20 ppm NAA
• D) 40 ppm GA

Q33. Auxin precursor:

• A) Tryptophan
• B) Terpenoids
• C) Isopentenyl
• D) None

Q34. Surface pigment in mature oranges:

• A) Carotene
• B) Chlorophyll
• C) Naringin
• D) Anthocyanins

Q35. Pixy dwarf rootstock of:

• A) Peach
• B) Walnut
• C) Pear
• D) Plum

Q36. Spring fig crop:

• A) Breba
• B) Ambe bahar
• C) Mrig bahar
• D) Haste bahar

Q37. Kinetin induces:

• A) Enlargement
• B) Division
• C) Internode elongation
• D) None

Q38. Vase-shaped training system:

• A) Open center
• B) Modified leader
• C) Center leader
• D) Bower

Q39. Triple response caused by:

• A) ABA
• B) IAA
• C) Ethylene
• D) None

Q40. Auxin synthesis site:

• A) Roots
• B) Meristematic region
• C) Shoots
• D) None

Q41. Ex-situ:

• A) Sacred groves
• B) Wildlife sanctuary
• C) Seed bank
• D) National park

Q42. Canopy management optimises:

• A) Leaves
• B) Fruits
• C) Flowers
• D) Roots

Q43. Natural hormone modifiers:

• A) Fertilizers
• B) Plant growth regulators
• C) Pollen
• D) Nutrients

Q44. Kinnow is:

• A) King × Willow leaf
• B) Lime × Lemon
• C) Lemon × Lime
• D) Sweet orange × Sour orange

Q45. Male:female ratio in kiwi:

• A) :9
• B) :11
• C) :20
• D) :5

Q46. Solidifying agent:

• A) Agar
• B) EDTA
• C) Cobalt chloride
• D) Nicotinic acid

Q47. Reduces soil fertility:

• A) Intensive cropping
• B) Intercropping
• C) Rotation
• D) Cover crops

Q48. Jam RH:

• A) 80%
• B) 70%
• C) 60%
• D) 50%

Q49. Organic soil health best:

• A) Crop rotation
• B) Synthetic fertilizers
• C) Black soil
• D) Monoculture

Q50. Skiffing in:

• A) Cocoa
• B) Tea
• C) Cashew
• D) Coconut

Q51. Protected structure protects from:

• A) Biotic stress
• B) Abiotic stress
• C) Both
• D) Water stress

Q52. Modifying environment for growth:

• A) Protected cultivation
• B) Sustainable agri
• C) Hydroponics
• D) Greenhouse cultivation

Q53. Storage issue in cashew:

• A) Graining
• B) Staling
• C) Rancidity
• D) All

Q54. Largest protected cultivation area:

• A) India
• B) Spain
• C) China
• D) Italy

Q55. Acid in cocoa pulp:

• A) Citric
• B) Tartaric
• C) Malic
• D) Acetic

Q56. Cellular totipotency technique:

• A) Grafting
• B) Tissue culture
• C) Layering
• D) Hybridization

Q57. Gene affecting multiple traits:

• A) Multiple gene
• B) Initial gene
• C) Pleiotropy
• D) Modifier gene

Q58. Heterostyly increases:

• A) Cross pollination
• B) Self
• C) Often cross
• D) None

Q59. Monohybrid ratio:

• A) :9
• B) ::
• C) 1:2:1
• D) :9:7

Q60. Vincristine source:

• A) Datura
• B) Periwinkle
• C) Cinchona
• D) Bursera

Q61. Pollination in unopened flower:

• A) Homogamy
• B) Apogamy
• C) Polygamy
• D) Cleistogamy

Q62. Alternative gene form:

• A) Mutation
• B) Gamete
• C) Allele
• D) Genotype

Q63. Fruit without fertilization:

• A) Apomixis
• B) Parthenocarpy
• C) Parthenogenesis
• D) Self-pollination

Q64. Genetic contaminants:

• A) Volunteer plants
• B) Other crops
• C) Weeds
• D) All

Q65. Opium poppy alkaloid:

• A) Morphine
• B) Codeine
• C) Thebaine
• D) All

Q66. PPV&FR protection period:

• A) 18 yrs
• B) 15 yrs
• C) 9 yrs
• D) 12 yrs

Q67. Public-domain variety:

• A) Derived
• B) Registered
• C) Protected
• D) Extant

Q68. GMS male sterile line maintained by:

• A) Homozygous fertile
• B) Homozygous sterile
• C) Heterozygous fertile
• D) Heterozygous sterile

Q69. Laxative plant:

• A) Ashwagandha
• B) Periwinkle
• C) Kalmegh
• D) Isabgol

Q70. Light-requiring seed:

• A) Skotoblastic
• B) Mesobiotic
• C) Macrobiotic
• D) Photoblastic

Q71. Ogura CMS transfer via:

• A) Protoplast fusion
• B) Somatic embryogenesis
• C) Embryo culture
• D) Genetic engineering

Q72. Tomato seed extraction:

• A) Fermentation
• B) Alkali
• C) Acid
• D) All

Q73. Forcing of rhubarb:

• A) Summer
• B) Rainy
• C) Winter
• D) All

Q74. TPS technology by:

• A) S. Ramanujam
• B) Pushkarnath
• C) S.K. Roy
• D) None

Q75. Tendrometer used for:

• A) Beans
• B) Potato
• C) Peas
• D) Tomato

Q76. Dredging controls:

• A) Parasitic weeds
• B) Lantana
• C) Agrestals
• D) Aquatic weeds

Q77. Trap crop:

• A) Marigold
• B) Sunflower
• C) Maize
• D) Sunn hemp

Q78. Okra remunerative in:

• A) Summer
• B) Rainy
• C) Both
• D) None

Q79. No colour tag seed:

• A) Foundation
• B) Nucleus
• C) Breeder
• D) Registered

Q80. Land-use planning:

• A) Weed eradication
• B) Weed control
• C) Weed prevention
• D) None

Q81. Pollination mechanism in chekkurmanis:

• A) Protoandry
• B) Protogyny
• C) Dichogamy
• D) Self-incompatibility

Q82. NIL developed through:

• A) Backcross
• B) Double haploid
• C) NIL
• D) RIL

Q83. Enhances nodulation in French bean:

• A) N
• B) P
• C) K
• D) Mn

Q84. Pre-cooling aim:

• A) Reduce microbes
• B) Improve quality
• C) Remove field heat
• D) None

Q85. Ethylene sensitive:

• A) Tomato
• B) Muskmelon
• C) Both
• D) Potato

Q86. Virus eradication:

• A) Meristem culture
• B) Pollen culture
• C) Embryo culture
• D) Protoplast fusion

Q87. Edible garden pea pod due to:

• A) No parchment
• B) No bitterness
• C) Low protein
• D) All

Q88. Accumulating genes from parents:

• A) Introgression
• B) Pyramiding
• C) MAS
• D) Tilling

Q89. FSSAI year:

• A) 2010
• B) 2011
• C) 2013
• D) 2014

Q90. Garden pea germination:

• A) IAA
• B) NAA
• C) GA
• D) MH

Q91. Pusa Hybrid 81:

• A) Cauliflower
• B) Broccoli
• C) Knol-khol
• D) Cabbage

Q92. High RH blocks:

• A) Fe
• B) Zn
• C) Ca
• D) Mg

Q93. Brassica botrytis (cauliflower):

• A) Pusa Himani & Chetaki
• B) Pusa Katki & Maghi
• C) PTWG & RRWT
• D) Golden Acre & Pride of India

Q94. Sugar in cantaloupe increases during:

• A) Warm days, cool nights
• B) Warm days, warm nights
• C) Cool days, cool nights
• D) All

Q95. Lycopene stops above:

• A) 10°C
• B) 30°C
• C) 25°C
• D) 20°C

Q96. Overcome self-incompatibility:

• A) NaCl
• B) K₂SO₄
• C) H₂S
• D) MgSO₄

Q97. Greenhouse weight:

• A) Live load
• B) Dead load
• C) Roof load
• D) Cladding load

Q98. Biofertilizer inoculation:

• A) Seed treatment
• B) Root dip
• C) Soil treatment
• D) All

Q99. Onion dehydration TSS:

• A) 10°B
• B) 20°B
• C) <10°B
• D) >20°B

Q100. Poor man’s crop:

• A) Broccoli
• B) Tomato
• C) Garden pea
• D) Brinjal