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Variety traits

Herbicide tolerance

Herbicide tolerance is the genetically determined ability of a crop variety to withstand the phytotoxic effects of chemical agents, allowing for the application of herbicides to growing crops without suppressing the crop.

Mentioned in descriptions 5 668 varieties reference book.

The herbicide tolerance of a variety is the genetically determined ability of a cultivated plant to withstand the phytotoxic effects of a specific chemical agent. In practice, this allows for the application of broad-spectrum herbicides directly to the growing crop without the risk of damage or loss of the stand, which significantly simplifies weed control.

This trait is evaluated within the framework of state variety testing using field and laboratory test methods. In field conditions, plots subjected to chemical treatment are compared with control samples, where plant density preservation, the absence of phytotoxicity signs (chlorosis, necrosis), and growth rates are recorded. Laboratory methods include dose-response analysis to determine survival rates at various application rates of the chemical.

Tolerance indicators are expressed in visual damage scores, percentage of stand density preservation, or productivity levels relative to an untreated standard. High tolerance is characterized by the preservation of full productivity when the recommended full dose of herbicide is applied. With low tolerance, even reduced doses cause growth retardation and yield loss; therefore, an important parameter for variety selection is its compatibility with the specific mode of action of the applied chemical.

Sources10

Breakdown by crop

Found in these crops

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Reflex

Active

Pisum sativum L. · Pea

Lemaire Deffontaines (FR)

FR
4 records

Riposta

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

PL
5 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

Re CL

Active

Oryza sativa L. · Rice

SA.PI.SE SARDO PIEMONTESE SEMENTI

IT
4 records

Pvl01

Active

Oryza sativa L. · Rice

Louisiana State University Agricultural Center

IT
3 records

Festuca arundinacea Schreb. · Tall fescue

TURF-SEED INC

IT
4 records

Prelude

Active

Lolium perenne L. · Perennial ryegrass

PROSEEDS MARKETING

DE
3 records

Gossypium hirsutum L. · Upland cotton

PAYMASTER TECHNOLOGY CORP

ES
3 records

Zea mays L. · Maize

Caussade Semences, F

IT
4 records

Pickardi

Terminated

Pisum sativum L. · Pea

S. Angelova, Gerard Eteve, R. Koeva, Y. Guteva, M. Lovchinova

BG
4 records

Ph5002r

Active

Helianthus annuus L. · Sunflower

PIONEER HI-BRED INTERNATIONAL

UA
3 records

Pasat

Active

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
4 records

Paraíso

Active

Helianthus annuus L. · Sunflower

STRUBE ESPAÑA, S.A.

ES
4 records

Paradox

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Department

IE
6 records

Beta vulgaris Sugar Beet Group · Sugar beet

Sesvanderhave, B

SE
3 records

Nikos

Terminated

Brassica napus var. napus · Rapeseed

Lukas H. Wolters c/o Euro Grass BV

DE
4 records

Negus

Active

Triticum durum Desf. · Durum wheat

CGS SEMENTI S.P.A.

IT
4 records

MS Oliva CL

Terminated

Helianthus annuus L. · Sunflower

Steve Thompson - USA

BG
3 records

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
3 records

Nofy

Active

Solanum tuberosum L. · Potato

Andelskartoffelmelsfabrikken Vendsyssel A.m.b.A. (AKV Langholt A.m.b.A.)

NL
5 records

Oryza sativa L. · Rice

GENTINETTA EUGENIO

GR
3 records

Nevadina

Active

Solanum tuberosum L. · Potato

Europlant Pflanzenzucht GmbH

DE
5 records

N5le442

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT
5 records

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