Letosun

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Citrullus lanatus (Thunb.) Matsum. & Nakai Watermelon · Vegetables · bred by Known-You Seed Co., Ltd (TW)

also searched as: летосун

Variety description

10 August 2026

The plant is of a vining type, with trailing vines reaching 30–45 cm in height. The variety possesses high growth vigor and resistance to temperature fluctuations and stress conditions.

Fruits have a round shape and weigh from 2 to 7 kg depending on growing conditions. The flesh is yellow, firm, juicy, with high sugar content and tender texture. The variety contains seeds.

The hybrid is intended for professional and amateur cultivation. Due to its adaptability to climatic changes, it is suitable for regions with moderate summers and is used primarily in fresh form.

Sources3

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Countries of admission

1 jurisdiction

Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.

IS FI NO SE EE IE GB DK LV LT NL DE PL BY PT ES FR BE CZ SK UA RU LU CH AT HU MD IT SI HR RS RO MT GR BG CY

active no record

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder: Known-You Seed Co., Ltd (TW) 2 Developed the variety
Applicant: Prosem (FR) 23 Submitted the application to the register
Maintainer: Known-You Seed Co., Ltd (TW) 2 Responsible for variety maintenance

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

FR France Active

№ 4076565

Application

18 March 2023

Registration

1 January 2026

Registry	Number	Application	Registration	Terminated	Status
FR France	4076565	18 March 2023	1 January 2026	—	Active

Records are sourced from official registry publications. Data sources and legal status

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Breeder

Known-You Seed Co., Ltd (TW)

breeder code SF 101-5677

All 2 varieties of company

Registry records

Total records: 1
Jurisdictions shown: 1
First registration: 2026

Same species