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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

Sunflower herbicide resistance 726 Herbicide resistance — sugar beet 192 Maize herbicide resistance 148 Herbicide resistance in rapeseed 113 Herbicide Resistance in Rapeseed 97 Herbicide Resistance in Rice 93 Herbicide tolerance in potato 89 Herbicide resistance in soft wheat 88 Maize herbicide resistance 50 Herbicide resistance in soybean 50 Herbicide Tolerance — Sweet Corn 17 Herbicide tolerance in barley 15 Cotton Herbicide Resistance 15 Herbicide tolerance in pea 12 Herbicide Resistance in Perennial Ryegrass 12 Herbicide Tolerance in Common Bean 11 Herbicide resistance of chicory 9 Herbicide resistance — durum wheat 8 Herbicide resistance in red fescue 8 Herbicide resistance — Sheep's fescue 7 Herbicide Resistance in Sorghum 7 Herbicide resistance in tomato 5 Herbicide resistance in hard fescue 5 Chickpea herbicide tolerance 5

Found in these crops

Sunflower 725 Sugar beet 195 Maize 147 Rapeseed 111 Rapeseed 96 Rice 91 Potato 89 Bread wheat 89 Maize 49 Soybean 47 Sweet corn 17 Upland cotton 15

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.

RH102

Terminated

Helianthus annuus L. · Sunflower

HIBRISOL S.L.

ES
1 record

Rimi/Rimi

Terminated

Helianthus annuus L. · Sunflower

Goran Malidza, Sinisa Jocic, Dragan Skoric,

UA
2 records

RHA-SES

Terminated

Helianthus annuus L. · Sunflower

Skoric, Dragan / Mihajlcevic, Miroslav / Marinkovic, Radovan / Jocic, Sinisa

HU
1 record

RHA470

Active

Helianthus annuus L. · Sunflower

Maurizio Lottari

UA
2 records

RG 499/01

Withdrawn

Brassica napus L. · Rapeseed

Raps GbR Saatzucht Lundsgaard

IT
1 record

Remil

Protection expired

Helianthus annuus L. · Sunflower

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
2 records

Rembo

Terminated

Helianthus annuus L. · Sunflower

Nicolae Parvu

UA
2 records

PVL 080

Withdrawn

Oryza sativa L. · Rice

LOUISIANA STATE UNIVERSITY

IT
1 record

PVL013

Withdrawn

Oryza sativa L. · Rice

LOUISIANA STATE UNIVERSITY

IT
1 record

PVL057

Withdrawn

Oryza sativa L. · Rice

LOUISIANA STATE UNIVERSITY

IT
1 record

PST 4 SU

Active

Festuca rubra L. · Red fescue

PURE SEED TESTING

IT
1 record

PST4BU3

Active

Festuca ovina L. · Sheep's fescue

PURE SEED TESTING

IT
1 record

PRIMO SMART

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE, N.V./S.A.

ES
1 record

PRIME CL

Withdrawn

Oryza sativa L. · Rice

INST.RIO GRANDENSE DO ARROZ/M.I.L.B, LTDA.

ES
1 record

Pirgos

Terminated

Zea mays L. · Maize

INSTITUT ZA KUKURUZ ZEMUN POLJE

IT
1 record

PHA155

Terminated

Helianthus annuus L. · Sunflower

PIONEER HI-BRED INTERNATIONAL

ES
1 record

PALMAR

Terminated

Oryza sativa L. · Rice

Semillas Certificadas Castells S.L.

ES
1 record

PHA119

Terminated

Helianthus annuus L. · Sunflower

PIONEER HI-BRED INTERNATIONAL

ES
1 record

Paramount

Withdrawn

Medicago sativa L. · Alfalfa

W-L Research

PL
2 records

Petite Arvine

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Petila

Terminated

Pisum sativum L. · Pea

WAVEREN| van Waveren Saaten GmbH

DE
2 records

Pepeta KWS

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

HR
1 record

Pehas

Terminated

Helianthus annuus L. · Sunflower

Avramenko Oleksandr Oleksandrovych , Scherban` Nataliia Fedorivna, Scherban` Serhii Vasyl`ovych,

UA
1 record

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