Orange (Mandarin)
Citrus reticulata
India’s mandarin — Nagpur and Coorg the famous names — worked on a bahar system that picks either the winter (ambia) or the monsoon (mrig) flowering, not both. Citrus decline from poor drainage and neglected root health is the slow killer that ends most orchards early.
- Crop type
- Perennial citrus (mandarin)
- Cropping
- Bahar (ambia or mrig)
- Suitable states
- 10+ major states
- First bearing
- 4–5 years
- Water requirement
- Moderate; well-drained
- Temperature
- 20–32°C; frost-sensitive
- Soil type
- Light, deep, well-drained loam
- Difficulty level
- Moderate
- Expected yield
- 100–150 q/ha
- Key practice
- Bahar + drainage/root health
Overview
The mandarin orange (Citrus reticulata) — Nagpur santra and Coorg mandarin above all — is India’s leading citrus fruit, grown mainly in Maharashtra, Madhya Pradesh, Rajasthan and Punjab, with a distinct hill mandarin belt in the north-east and Coorg. Its easy-peeling, loose-skinned fruit defines the fresh-orange market.
Mandarin is worked on the bahar system: the grower induces one concentrated flowering — either ambia bahar (winter flowering, monsoon-ripening fruit) or mrig bahar (monsoon flowering, winter-ripening fruit) — rather than letting the tree fruit twice and exhaust itself. Which bahar is taken depends on the region, market and water.
The quiet enemy of every mandarin orchard is citrus decline: a slow loss of vigour and early death caused by poor drainage, a buried graft union, gummosis, neglected root health, and the incurable virus and greening diseases. Managing drainage and root health, and the canker–leaf-miner and psylla–greening pairs, is what keeps an orchard bearing for its full life. This guide follows the crop with those levers.
Crop timeline, sowing to harvest
A quick visual map of the season — jump to any section below for the detail behind each stage.
- Year 0
Planting
A budded sapling on a hardy rootstock (rough lemon/Rangpur lime) set at 6 × 6 m in a monsoon-filled pit, staked.
- Year 1–4
Training & framing
The young tree is trained to a clean stem and open head; commercial cropping begins in year 4–5.
- Bahar treatment
Rest & bahar
For the chosen bahar (ambia or mrig), water is withheld to induce a concentrated flowering, then resumed with feeding.
- Month 0–1
Flowering
Fragrant flowers open on the flush; only one bahar is taken so the tree is not exhausted by two crops.
- Month 2–6
Fruit development
Fruit swells; drainage, root health, canker and psylla (greening vector) are watched relentlessly.
- Month 7–9
Maturity
The rind colours and the juice sugars up; mandarin is picked when eating-ripe as it does not improve off the tree.
- Harvest window
Harvest
Ambia fruit ripens roughly Nov–Jan and mrig fruit Feb–Apr, clipped ripe over a short window.
Suitable states
States where this crop is grown at scale, highlighted below. Your local Krishi Vigyan Kendra is still the final word for your specific block.
- Jammu and Kashmir
- Himachal Pradesh
- Punjab
- Uttarakhand
- Haryana
- Delhi
- Uttar Pradesh
- Rajasthan
- Bihar
- Jharkhand
- West Bengal
- Sikkim
- Assam
- Arunachal Pradesh
- Meghalaya
- Nagaland
- Manipur
- Mizoram
- Tripura
- Gujarat
- Madhya Pradesh
- Chhattisgarh
- Maharashtra
- Odisha
- Goa
- Telangana
- Andhra Pradesh
- Karnataka
- Kerala
- Tamil Nadu
- Puducherry
- Ladakh
- Chandigarh
Grown here
Climate requirements
Mandarin wants a warm growing season with a distinct cool, dry period to colour and sweeten the fruit and to allow the bahar rest. That is why the crop suits the central-Indian and hill belts, and why choosing the bahar that ripens fruit in dry, cool weather gives the best quality and least disease.
Ideal temperature
20–32°C suits mandarin; it needs a distinct cool, dry period for good fruit colour and sugar, and young trees are frost-sensitive
Rainfall
Grows from 600 to 1,200 mm; needs a dry spell for the bahar rest and dislikes prolonged humidity, which drives canker and fruit rots
Humidity
Moderate; high humidity favours citrus canker and fruit rots, so airflow and dry-season fruiting matter
Sunlight
Full sun for fruit colour, sugar and even ripening; a crowded canopy fruits poorly and holds disease inside
Soil requirements
Every citrus lives or dies by its drainage and root health, and mandarin is no exception — the “citrus decline” that ends so many orchards prematurely is at root a drainage and root-health problem. Plant on a light, deep, well-drained soil, keep the graft union high, and never let the basin waterlog.
Suitable soil
Light to medium, deep, well-drained loam; grafting on a hardy rootstock lets it crop on lighter and moderately problem soils
pH range
6.0–7.5
Drainage
Excellent drainage is critical — waterlogging causes root rot, gummosis and the citrus decline that kills orchards early
Organic matter
Moderate; responds to FYM, but the priority is a deep, freely-draining root zone rather than raw richness
Land preparation
Same four steps whichever region you are in — only the timing shifts with the sowing window.
- 1
Layout & pits
Mark a 6 × 6 m grid and dig pits before the monsoon, refilling with topsoil, FYM and phosphorus.
- 2
Drainage & mounding
Ensure the block drains freely; on heavier land plant on a mound to keep the roots and collar out of standing water.
- 3
Rootstock & clean buds
Plant budded trees on a hardy, tolerant rootstock (rough lemon/Rangpur lime) from a certified, disease-free nursery.
Seed information
How the main varieties compare, so you can pick by duration, yield, disease pressure or what you are growing for.
| Variety | Duration | Yield | Disease resistance | Best state | Suitable for |
|---|---|---|---|---|---|
Nagpur Mandarin (Santra) India’s premier mandarin — easy-peeling, juicy, well-coloured fruit; the mainstay of the central-Indian belt. | Bahar crop | High | Canker/decline-prone | Maharashtra | Fresh market, central India |
Coorg Mandarin The classic hill mandarin of Karnataka’s Kodagu, grown at elevation for the fresh market. | Bahar crop | High | Moderate | Karnataka | Hill fresh market |
Khasi Mandarin The north-east hill mandarin of Assam, Meghalaya and the region, grown on the hill slopes. | Bahar crop | Medium–high | Moderate | Assam/Meghalaya | North-east hills |
Kinnow (mandarin hybrid) A very high-yielding, juicy mandarin hybrid that dominates the north-west (Punjab, Rajasthan) fresh trade. | Winter harvest | Very high | Moderate | Punjab | Fresh & juice, north-west |
Darjeeling / hill selections Local hill mandarin selections grown at elevation for the specialty fresh market. | Bahar crop | Medium | Moderate | West Bengal hills | Specialty hill market |
- Seed rate
- About 275 budded trees/ha at 6 × 6 m (higher for Kinnow and high-density systems)
- Certified seed
- Plant certified, disease-free budded trees on a hardy rootstock — never seedlings. Citrus greening and viruses are seed- and bud-transmitted, so clean, certified nursery stock is the first defence, and the tolerant rootstock is the long-term insurance against root rot and salinity.
- Spacing
- 6 × 6 m for standard orchards (about 275 trees/ha); closer for Kinnow and high-density plantings
- Seed treatment
- Not a seed crop — select clean budded trees, keep the graft union high above the soil, and protect the collar from gummosis after planting.
Sowing guide
Plant at the monsoon onset with the bud union kept high and the collar clear of standing water — a buried union and a wet collar are the start of the gummosis and decline that end orchards early. Decide which bahar the region and your water suit, and build the orchard calendar around that single flowering.
- Best time
- Plant budded trees at the onset of the monsoon (July–August), or February–March under assured irrigation in milder areas
- Row spacing
- 6 m between rows
- Plant spacing
- 6 m within the row
- Sowing depth
- Keep the bud union well above the soil line; plant at nursery depth on a mound where drainage is a risk
- Method
- Plant budded trees into FYM-filled pits/mounds, stake, and give a basin irrigation immediately
Fertilizer schedule
A split dose beats one large dose applied at sowing — nitrogen especially is lost to the air and to leaching if it all goes in on day one.
- 1
With bahar treatment
Bahar start
Apply the main FYM and NPK dose when the bahar rest ends and irrigation resumes, to feed the flowering flush.
- 2
Fruit development
Mid-season
A supporting dose with potash during fruit growth for size, juice and colour; keep late nitrogen modest.
- 3
Micronutrients
As needed
Foliar zinc, manganese and iron correct the near-universal citrus micronutrient deficiencies that cripple mandarin on alkaline soils.
Irrigation schedule
1. Bahar rest
Before bahar
Withhold irrigation for a period to stress the tree and induce a concentrated flowering — the core of the bahar system.
2. Flowering & set
Month 0–2
Resume steady irrigation with the fertiliser dose; even moisture now sets and holds the crop.
3. Fruit development
Month 2–6
Regular, even irrigation through fruit growth; wide dry-wet swings cause fruit drop and skin problems.
Critical stages
- Flowering & set
- Fruit development
Water-saving tips
- The bahar rest is a deliberate dry period — it costs no water and forces the crop.
- Drip with basin mulch meets the moderate demand efficiently and keeps the rot-prone collar dry.
- Even watering through fruit growth prevents the fruit drop and rind problems erratic irrigation causes.
Weed management
Common weeds
Organic control
- Basin mulching conserves moisture and suppresses weeds around the shallow roots.
- A managed cover in the inter-row smothers weeds and builds the soil in bearing orchards.
Chemical control
- Keep tree basins clean with a spot herbicide in young orchards, kept off the trunk.
- Mow the alleyways rather than deep-cultivating near the shallow feeder roots.
Nutrient deficiency identification
What a shortage of each nutrient actually looks like on the plant, so you can tell a deficiency apart from a disease before you spray the wrong thing.
Zinc
Visible symptom
Small, narrow, mottled “little-leaf” new growth — the classic and near-universal citrus deficiency.
Manganese
Visible symptom
A fine network of interveinal yellowing on young leaves, on alkaline soils.
Iron
Visible symptom
Sharp interveinal yellowing of the youngest leaves with green veins (lime-induced chlorosis).
Nitrogen
Visible symptom
Uniform pale, small leaves and weak growth with light cropping.
Magnesium
Visible symptom
Yellowing from the older-leaf margins inward, leaving a green inverted-V at the base.
Diseases to watch for
Symptoms, likely cause and what actually treats it — not just a spray name.
Citrus greening (HLB / huanglongbing)
- Symptoms
- Blotchy-mottled leaves (asymmetric yellowing), twig dieback, lopsided, small, bitter, poorly-coloured fruit, and slow decline and death of the tree.
- Cause
- A bacterium spread by the citrus psylla and through infected budwood; systemic and incurable — a leading cause of citrus decline.
- Treatment
- No cure — rogue and destroy declining, greening-struck trees to protect the block.
- Prevention
- Plant certified disease-free budded trees, control the citrus psylla vector rigorously, and rogue infected trees early — greening avoidance is central to a mandarin orchard’s survival.
Gummosis / root rot (Phytophthora)
- Symptoms
- Gum oozing and bark death at the collar and trunk base, root rot, and a slowly yellowing, declining tree.
- Cause
- Phytophthora entering the collar, worst where the bud union is buried or the basin waterlogs.
- Treatment
- Expose and clean the affected bark, apply a recommended fungicide paste, and correct drainage; remove badly affected trees.
- Prevention
- Plant high on a tolerant rootstock with the union above soil, keep the collar dry, and never let water stand against the trunk — the heart of preventing citrus decline.
Citrus canker
- Symptoms
- Raised, corky, brown scabby lesions with yellow haloes on leaves, twigs and fruit; heavy attack blemishes the fruit and defoliates the tree.
- Cause
- The bacterium Xanthomonas, spread by wind-driven rain and entering through leaf-miner wounds; favoured by warm, wet weather.
- Treatment
- Prune out affected wood and spray copper bactericides preventively through the wet season.
- Prevention
- Clean planting material, leaf-miner control, copper sprays, windbreaks and sanitation.
Tristeza & fruit rots
- Symptoms
- Tristeza causes stem pitting and decline on susceptible rootstocks; fruit rots (Phytophthora brown rot, blue/green mould) rot the fruit in wet weather and storage.
- Cause
- Aphid-spread tristeza virus, and various fungi on wet, mature or injured fruit.
- Treatment
- Use tolerant rootstocks for tristeza; harvest clean, handle gently and cool fruit to limit rots.
- Prevention
- Tolerant rootstock, aphid control, orchard sanitation and keeping fruit off wet soil.
Pests to watch for
What to look for before the damage is visible, and organic options before you reach for a chemical.
Citrus psylla
- Identification
- Tiny sap-sucking psyllids on the new flush, tilted at an angle, with waxy honeydew and curled young leaves.
- Damage
- Beyond weakening the flush, it transmits citrus greening (HLB) — the incurable disease behind much citrus decline, so psylla control is greening control.
- Organic control
- Monitor and protect each new flush, conserve natural enemies, use neem, and rogue greening-struck trees to remove the source.
- Chemical control
- A recommended systemic insecticide on the flush as part of greening management wherever psylla is present.
Citrus leaf miner
- Identification
- Silvery serpentine mines curling and distorting the young flush leaves, made by tiny moth larvae.
- Damage
- It distorts the flush and, crucially, its wounds are the main entry point for citrus canker.
- Organic control
- Neem sprays timed to each new flush and conserving natural parasitoids.
- Chemical control
- A recommended insecticide on the tender flush when miner activity is high, especially in canker-prone blocks.
Citrus blackfly, aphids & whitefly
- Identification
- Colonies on the underside of the flush with sticky honeydew and black sooty mould on leaves and fruit.
- Damage
- Sap-sucking weakens growth; aphids spread tristeza; sooty mould blackens and downgrades the fruit.
- Organic control
- Conserve predators and parasitoids, neem sprays, and yellow sticky traps.
- Chemical control
- A recommended insecticide on hotspots, timed to spare pollinators and natural enemies.
Fruit-sucking moth & fruit fly
- Identification
- Night-feeding moths piercing ripening fruit, and fruit fly maggots infesting it, causing drop and rot.
- Damage
- Both cause pre-harvest fruit drop and rot, downgrading the crop.
- Organic control
- Bait traps, orchard sanitation, prompt collection of fallen fruit, and bagging premium fruit.
- Chemical control
- Bait sprays and a recommended cover spray near maturity where these pests are damaging.
Common mistakes to avoid
The mistakes that cost growers the most, ranked by how often they show up in the field — not in the order you might expect.
- 1
Letting the tree take two bahars a year.
Why it hurts
Cropping both the ambia and mrig flowering exhausts the tree, gives small poor fruit and shortens its life — take one concentrated bahar suited to your region and water.
- 2
Ignoring drainage and root health.
Why it hurts
Poor drainage, a buried union and neglected roots cause the slow citrus decline that kills mandarin orchards years early — drainage and root health are the real long-game of the crop.
- 3
Letting greening (HLB) trees stand and ignoring the psylla.
Why it hurts
A greening-struck tree is an incurable reservoir the psylla spreads to the whole block — rogue infected trees early and control the psylla, rather than nursing declining trees.
- 4
Planting seedlings or uncertified budwood.
Why it hurts
Seedlings are variable and slow, and uncertified budwood carries greening and viruses into the orchard — always plant certified, disease-free budded trees on a tolerant rootstock.
- 5
Burying the bud union or planting in a wet basin.
Why it hurts
A buried union and a waterlogged collar invite gummosis and decline — keep the union high, plant on a mound where needed, and never let water stand at the trunk.
- 6
Skipping micronutrients on alkaline soil.
Why it hurts
Zinc, manganese and iron deficiencies are near-universal in mandarin on alkaline soils and cripple growth and yield — a foliar programme corrects them cheaply.
- 7
Ignoring the canker–leaf-miner pair.
Why it hurts
Leaf-miner tunnels open the door for canker, so treating them separately fails — protect each new flush from the miner and spray copper to keep canker out.
- 8
Over-feeding late nitrogen.
Why it hurts
Heavy late nitrogen pushes soft, canker- and pest-prone flush and delays and greens the fruit — feed the main dose with the bahar and keep late feeding light.
- 9
Harvesting under-ripe fruit.
Why it hurts
Mandarin does not sweeten off the tree, so picking under-ripe gives sour, poorly-coloured, low-grade fruit — harvest only when the fruit is eating-ripe.
- 10
Rough clipping/pulling of loose-skinned fruit.
Why it hurts
Mandarin’s loose skin tears and “plugs” if pulled, letting in rot — clip the fruit flush with a short stalk and handle it gently.
Harvesting
Harvest eating-ripe: mandarin does not improve off the tree, so pick when the rind has coloured, the fruit has softened slightly and the juice has reached full sweetness (target TSS/acid ratio). Clip the fruit flush with a short stalk rather than pulling, which tears the loose skin and invites rot. Ambia fruit ripens roughly November–January and mrig fruit February–April, over a fairly short window per bahar.
Signs it is ready
- Rind fully coloured for the variety
- Fruit slightly soft, heavy with juice
- Juice at full sweetness (target sugar/acid ratio)
Tools
- Clippers for a flush short-stalk cut
- Padded crates to avoid rind injury
- Gentle handling — loose skin bruises and plugs easily
Expected yield
100–150 q/ha in a well-managed bearing orchard (a mature tree carries several hundred fruit), higher for Kinnow and high-density systems
Post-harvest & storage
Storage
Mandarin stores moderately — fruit keeps 1–4 weeks under cool storage (around 5–7°C with high humidity), with a light wax and fungicide treatment to reduce shrivel and rot.
Packaging
Grade by size and colour, and pack in ventilated cartons with cushioning; the loose skin needs gentle handling to avoid plugging and rot.
Transportation
Move promptly; cool-chain transport extends the reach for distant markets and holds fruit quality.
Shelf life
1–4 weeks under correct cool storage; a week or so at ambient.
Market prices
Today's mandi price near you, pulled live from the government's own Agmarknet data.
Live daily mandi prices from the government Agmarknet dataset.
Synced from data.gov.in (Agmarknet). Rates are ₹ per quintal.
Weather
Current conditions and a 5-day outlook for your selected location, with one line of stage-aware advice.
Pick your state for current conditions and a 5-day outlook.
Live data from Open-Meteo
Profit calculator
Your own cost sheet, expected yield and selling price — not ours.
Where the money goes
Share of the total cost per acre, using the calculator’s own default cost sheet below — adjust the numbers there to match your field and this picture will no longer apply to you exactly, but the ranking rarely changes.
- Labour24% (₹14,000)
- Land rent19% (₹11,000)
- Fertiliser16% (₹9,000)
- Pesticide & weedicide12% (₹7,000)
- Irrigation12% (₹7,000)
- Seed7% (₹4,000)
- Machinery5% (₹3,000)
- Interest4% (₹2,500)
Official downloads
Government and ICAR documents only — everything below is hosted on an official server.
Frequently asked questions
What is the bahar system and which bahar should I take for oranges?
The bahar system means inducing one concentrated flowering by giving the tree a dry rest and then resuming water and feeding, rather than letting it fruit twice and exhaust itself. Mandarin can be cropped in ambia bahar (winter flowering, fruit ripening around the monsoon) or mrig bahar (monsoon flowering, fruit ripening in winter). Which you take depends on your region, water availability and market — the guiding aim is to ripen the fruit in cool, dry weather for the best colour, sugar and least disease. You take one bahar, not both.
What is citrus decline and how do I prevent it?
Citrus decline is the slow loss of vigour and early death that ends so many mandarin orchards years before their time. It is not one disease but a combination: poor drainage and root rot, a buried graft union and gummosis, neglected root health, and the incurable greening (HLB) and virus diseases. Prevention is about the fundamentals — plant certified budded trees on a tolerant rootstock, keep the union high and the collar dry, ensure excellent drainage, feed and manage the roots, and rogue greening-struck trees while controlling the psylla that spreads them.
What is citrus greening and why is it so serious?
Citrus greening, or HLB (huanglongbing), is a bacterial disease spread by the citrus psylla and by infected budwood. It causes blotchy-mottled leaves, twig dieback, and small, lopsided, bitter, poorly-coloured fruit, and it slowly kills the tree — there is no cure. It is a leading driver of citrus decline. The only defence is prevention: plant certified disease-free trees, control the psylla vector rigorously, and rogue out infected trees early before they seed the rest of the block.
When should I pick mandarin oranges?
Pick eating-ripe, because mandarin does not sweeten after it leaves the tree. Harvest when the rind has fully coloured, the fruit has softened slightly and feels heavy with juice, and the juice has reached full sweetness. Clip the fruit flush with a short stalk rather than pulling it — the loose skin tears and “plugs” if pulled, which lets in rot. Ambia fruit ripens roughly November–January and mrig fruit February–April.
Why do citrus trees need micronutrient sprays?
Mandarin and other citrus are very prone to zinc, manganese and iron deficiencies, especially on the alkaline and calcareous soils common in the growing belts. These deficiencies show as mottled “little-leaf” growth and interveinal yellowing and badly cripple growth, fruit set and yield if left uncorrected. A foliar micronutrient programme, applied to the new flush, corrects them cheaply and is a routine, near-essential part of mandarin nutrition.
Does orange (mandarin) have an MSP?
No. Mandarin orange is a market fruit with no Minimum Support Price — the rate is set by grade, colour, size, season and demand, and well-coloured, sweet fruit fetches far more than sour or blemished fruit. Use the live mandi prices and the profit calculator on this page when planning; grading, the cold chain and juice/processing add much of the margin.
Still have questions?
The FAQs above cover the common ones. For anything specific to your field and soil, your nearest Krishi Vigyan Kendra is the authoritative answer.