JRF Horticulture: Important Questions
JRF Horticulture Questions
- NRC in floriculture: Pune
- ISI new name: Bureao of Indian standards
- Rastrapati garden designer: Sir Edward Glutis
- SO2 toxicity indicater plant: Epiphytic lichens
Also read: Horticulture Multiple Choice Questions (MCQ)
JRF Floriculture
- CMS observed in ageratum
- Heliconia family: Musaceae
- Glandiforum rose: hybrid tea × floribunda
- International flowe market: Aalsmeer Netherland
- Non endospermic seeds: Orchid
- International bougenville registration authority: IARI New delhi
- Chilling injury sp.: Catalleya sp.(orchid)
- Sita ashok: Saraca indica
- Sand garden: Royanji
- Presevative in cut flower: Foriscent 5000
- Modern method of oil extraction: Micro incapsulation
- Non tunicate bulb: Lilly
- Ethylene injury resistant: Gerbera
- Limp neck is disorder: Rose
- Fluoride toxicity: Gladiolous
- Major problem in gladiolous: Fusarium wilt
- Genetic male sterility in marigold is govern by single recessive gene
- Largest area under flowers in India: Jasmine
Landscape gardening
Also read: Landscape Gardening Multiple Choice Questions (MCQ)
- Lawn weed: Cyprus rotundus
- Lawn seed rate: 2.5g/m2
- Lawn disease fairy ring is due to fungi
- Cultural operation promotes production of big size flower: Disbudding
JRF Pomology
Also read: MCQ On Fruit Science
- Cross of Pusa Lalima: Dashehari x Sensation
- Pusa apple root stok: M.baccata var. shillong
- Vapour heat treatment in mango: 47.5% (inner core)
- Anthracnose resistant mango: M. lavrina
- most recent classification of mango-Kosterman and Bompard (1993) 63 sp.
- Cause of irregular bearing in mango – all of these
- Fluctuation in temperature during flowering in North india causes:
- Pre selection criteria in mango: dwarfness
- 1st Synthetic seed production in banana: BARC Mumbai
- Highely polyembryonic Citrus sp.: Citrus unsui (Satsuma mandrin)
- Grape tenturier variety: Pusa Navrang
- Papaya transgenic cultivar: Rainbow
- Pectin is measured by jelmeter
- Tomato ketchep is preserved by sodium benzoate
- Pineappale is a CAM plant
- Pomegranate variety daru is resistant to Bacterial blight
- Non climatric fruit is Carambola
Fruit science
- Dichotomous branching habit: Karonda
- Phyllanthoid branching habit: Aonla
- Apple progenator: Malus sieversii
- Apple apomictic resistant seed
- oxy flavour of grape is due to methyl anthranilate
- Z. numularia is vulnerable to bottle neck dissorder
- Annnona muricata is protandry
- Type of pollination in custard apple is artificial
- Size of apple (cm) pitto is < 55 mm
- Kidds and West coined the term climacteric
Black heart physiological disorder is seen in pineapple.
Co-dominant molecular marker: SSR
Clonal characterization: ISSR and SSR
Breeding of horticultural crops
- Auxin is the cause of apical dominance
- Distant cytoplasm combination: anthur culture
- Forest area reserve: Insitu conservation
- Meristem culture is related to the production of virus free plant
- Node having roots: sucker/runner/creeper/rambler
- Sexual dimorphism is present in beetlevine
- Pungency in black pepper is due to piperine
- Diploid apogamy: Onion
Other
- Vaccum cooling is done for leafy vegetables
- Problem in vaccum transportation of flower
- Coconut leaf decomposer worm spp.: Endrillus
- Cause of raw manures is aerobic decomposition in high temp.
- Apple starch index for maturity is 4
- Dwarf banana ready to harvest in 11-12 months
- Grape variety suitable for champaign is raselling
- Chilling treatment of subtropical peach is 150 hours
- Number of bee hives per hactare in apple orchard should be 3-4
- Element involved in translocation of sugar is K
- Spacing for meadow orchading of guava 1 × 2 m
- Palam hriday is variety of radish
- okra is used as a trap crop
Vegetable crops
Also read: Olericulture (Vegetable Science) MCQ (Multiple Choice Questions)
- Solidity is maturity indices of leafy vegetable
- Origin of rhubarb is Siberia
- S.I. in cabbage is sporophytic
- Heat unit maturity indices is adopted for Garden pea
- Amaranthus is a C-4 plant
- Beet root colour is due to Betalin
- Hypocotyle cracking /necrosis is a disorder of french bean
- Mutation breeding of French bean: Pusa parvati
- Summer squash is a Non tendril cucurbit
- Musk melon harvested for distant market – at half slip stage
Olericulture
- Non lobed type genetic marker: Watermelon
- Lima bean is butter bean
- Kufri jyoti is registant to late blight
- Cauliflower cultivar resistant to black rot: Pusa shubhra
- Root Knot Nematode governing gene in tomato is mi gene
- Potato Root knot nematode resistant spp. is S. magila
- Onion is a low respiration vegetable
- 3 ppm boron is used for induction of male flower in carrot
Breeding
- Vivipary is the germination of seed in mother plant
- Greater lake is a crisp head lettuce variety
- Carrot foundation seed isolation distance is 1000 m
- Largest producer of organic spice is Srilanka
- Biological control in black pepper: Tricoderma/Pseudomonas
- India is the largest producer of turmeric
- India is the largest exporter of black pepper
- Ginger seed rate is 1500-1800 kg/ha
Horticulture important topics
- Rio de jenerio is a variety of Ginger
- Rubber plant population is 245-450 plant/ha
- Hisar sonali is dual purpose variety of fenugreek
- Closd flower buds are the economic part of clove economic part-
- Konkan sughandi is the variety of Nutmeg
- VTCH-1 is beetlevine dwarf rootstok
- Baroja is the trailing system in beetlevine
- Karnataka is the highest producer of coffe
Plantation crops
- High yield variety of tea: UPASI-10 (drought and wind resistant)
- Thyme major problem
- Indonesia is the oil-palm’s largest producer
- Oil palm acid: Palmetic acid
- Criollo is the finest quality cocoa
- Areca triandra is an species of arecanut
- Commercial method of propagation in cashew nut is soft wood grafting.
Also read: Plantation Crops MCQ