Grafted seedlings with grafting clips in a nursery tray

Grafted vegetable seedlings · Karaj, Iran

Where plant science meets propagation.

We grow grafted vegetable seedlings on nearly three decades of grafting research — and engineer the facilities that produce them.

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FPA Venlo glasshouse35.8° N · Karaj

FPA in numbers

Measured,
not claimed.

Every figure here points to a source: a facility you can visit, or research you can read.

  • Research 30years of research, teaching and extension in vegetable grafting
  • Research ≈100 scientific publications
  • Research ≈100 graduate researchers supervised
  • Facility 10tiers per LED-lit healing chamber
  • Facility 50people grafting hall capacity
  • Experience 10countries of international training, symposia and technical visits

Research: scientific leadership of Dr. Reza Salehi, University of Tehran. Facility: installed infrastructure, FPA production complex, Karaj — output depends on crop and schedule. Experience: including the Netherlands, South Korea, China, Greece and Türkiye.

01 What we do

One platform,
from seed to facility.

FPA combines plant material, production facilities and technical knowledge. Seedling production is our current operational priority.

Cucumber scion and squash rootstock seedlings in plugs
01

Grafted Seedlings

Quality-controlled production, built around the crop, the rootstock and your production objective.

Exterior of FPA's Venlo glasshouse in Karaj
02

Nursery and Graft Factory

Engineering for propagation, healing and acclimation facilities — from a focused pilot to a complete plant.

Commercial cucumber greenhouse under advisory support
03

Data-Based Consulting

Climate, irrigation, root-zone and plant measurements, turned into crop-specific decisions.

Students in a practical grafting session
04

FPA Academy

Practical training for managers, technical teams and growers — inside a working plant factory.

02 Field evidence

We don’t trust
theories alone.

Grafting starts with a defined constraint and a rootstock chosen for it. These are side-by-side observations from real soil and real greenhouses.

Aerial view: grafted watermelon rows on the left are full; non-grafted rows on the right are sparse GraftedNon-grafted

The same field, the same season: grafted rows hold a full stand while non-grafted rows thin out.Field comparison in Fusarium-affected soil · Iran

Expected benefits depend on the rootstock, pathogen pressure, environment and crop management. Each result is specific to the tested rootstock–scion combination.

A grower holding two large watermelons in a grafted field

Proof is in the harvest.

Grafted watermelon harvest · Fusarium-affected field

03 From seed to dispatch

A connected pathway,
under one roof.

  1. Automated seed-sowing line
    01 / 06

    Sow

    Automated seed placement into production trays.

  2. A seedling emerging from the substrate in a plug tray
    02 / 06

    Germinate

    Humidity, air movement and temperature managed in a dedicated germination room.

  3. Seedling trays on benches in the Venlo glasshouse, with a climate sensor
    03 / 06

    Grow

    Venlo glasshouse with movable benches and ebb-and-flow fertigation with nutrient recirculation.

  4. Grafting technicians at work
    04 / 06

    Graft

    Rootstock and scion matched by stem diameter, in a grafting hall for up to 50 people.

  5. Multi-tier healing chamber with LED lighting
    05 / 06

    Heal

    10-tier chambers with tailored LED light, cooling, humidification and airflow between tiers.

  6. FPA seedling boxes stacked for delivery
    06 / 06

    Dispatch

    Protective packaging, transplanting guidance and technical follow-up in the field.

04 Grafted seedlings

Specified to
the centimetre.

Every batch is checked against a technical specification before it leaves the nursery: plant height, graft position, leaf count and root ball.

Grafted watermelon seedling with grafting clip

WatermelonGrafted · open field

  • Height12–15 cm
  • Graft height3–4.5 cm
  • Leaves3.5–4.5
A tray of grafted tomato seedlings held in the nursery

TomatoGrafted, two stems · greenhouse

  • Height11–15 cm
  • Graft height3–3.5 cm
  • Leaves / stem2–2.5
Grafted cucumber seedling with clip and full root ball

CucumberGrafted · greenhouse

  • Height12–14 cm
  • Graft height3–4.5 cm
  • Leaves3.5–4.5
Uniform grafted pepper seedlings with clips

PepperGrafted · field & greenhouse

  • Height13–15 cm
  • Graft height3–3.5 cm
  • Leaves6
Also on request:MelonEggplant

Roots: a full, white root ball growing downward, without circling. Availability and rootstock combinations are confirmed per project after technical evaluation.

All seedling specifications

05 Collaborate

Open to international collaboration.

We work with seed and nursery companies, greenhouse developers, technology providers, research organisations and investors.

  • 01
    Grafted seedling programsRootstock–scion selection and crop-specific nursery production.
  • 02
    Turnkey greenhouse & graft-factory projectsConcept, engineering, sourcing, construction, commissioning, team training.
  • 03
    Applied research & technologyJoint trials, technical validation, controlled-environment protocols.
  • 04
    Greenhouse consultingData-informed climate, irrigation, root-zone and crop decisions.
  • 05
    FPA AcademyPractical training and knowledge transfer for growers and technical teams.

Start a conversation

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Catalogue

Take the full story with you.

Facilities, research, field evidence and partnership models — in one document.

  • International Corporate Catalogue37 pages · PDF · 5.5 MB
  • Plant Factory for Grafted Seedlings5 pages · PDF · 1.8 MB

Visit us

Head office & nursery.

Fakour Peyvand Aria (FPA)
Karaj City, Alborz Province, Iran
Open in Google Maps info@fpa-co.com
Catalogue Contact us