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Helianthus annuus L. Sunflower · Agricultural · bred by Vronskikh Mykhailo Dmytrovych, Lesnik Volodymyr Stepanovych, Rantsev Dmytro Vasyl`ovych, Odynets` Serhii Ivanovych, Schudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna, Lytovchenko Borys Kyrylovych,

also searched as: резон

Variety description

10 August 2026

The hybrid belongs to the early-maturing category and is suitable for various sowing dates, including stubble sowing. Plants are of medium height, possess good resistance to lodging and seed shattering, and show high tolerance to Phomopsis, white rot, and gray rot. Resistance to broomrape races A–E is stated.

Seed oil content reaches 50%. The position of the head contributes to protection against sunburn and disease development. The hybrid is suitable for use with No-till and minimum tillage technologies; moderate application of nitrogen fertilizers is recommended.

The recommended plant density at harvest depends on the moisture level of the zone: 45–47 thousand plants/ha for zones with insufficient moisture, 47–50 thousand plants/ha for moderate, and 50–55 thousand plants/ha for sufficient moisture levels.

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Countries of admission

2 jurisdictions

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

terminated no record

Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

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

Parties

Breeder: Vronskikh Mykhailo Dmytrovych, Lesnik Volodymyr Stepanovych, Rantsev Dmytro Vasyl`ovych, Odynets` Serhii Ivanovych, Schudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna, Lytovchenko Borys Kyrylovych, 2 Developed the variety
Applicant: NAUCHNO-PROIZVODSTVENNAYA SELEKCZIONNO-SEMENOVODCHESKAYA FIRMA «AGROS-SEM» 1 Submitted the application to the register
Rights holder: Moldo-rosiiska naukovo-vyrobnycha firma "AGROS-SEM",Instytut oliinykh kultur Natsionalnoi akademii ahrarnykh nauk Ukrainy, 3 Holds the rights to the variety
Maintainer: INSTITUT MASLIChNYH KUL'TUR UAAN (UKRAINA) / AGROS-SEM S.R.L. Responsible for variety maintenance

Admission to trade

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

UA Ukraine Terminated

№ 09017239

Application

11 November 2009

Registration

24 April 2013

Terminated

12 September 2025
MD Moldova Application submitted

№ 0282371

Application

25 November 2009
BY Belarus Active

№ 2010199

Application

10 February 2010

Registration

1 January 2013
RU Russian Federation Active

№ 55662

Application

30 November 2010

Registration

29 January 2013

Registry	Number	Application	Registration	Terminated	Status
UA Ukraine	09017239	11 November 2009	24 April 2013	12 September 2025	Terminated
MD Moldova	0282371	25 November 2009	—	—	Application submitted
BY Belarus	2010199	10 February 2010	1 January 2013	—	Active
RU Russian Federation	55662	30 November 2010	29 January 2013	—	Active

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

Ukraine № 09017239

Terminated

Application filed 11 November 2009
Registered 12 November 2013
Entry closed 12 September 2025

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

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