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Variety traits

Tolerance

Tolerance is the ability of a variety to maintain productivity and crop quality when exposed to pathogens or abiotic stresses. Unlike resistant varieties, tolerant plants are affected by infection but compensate for the damage without significant yield loss.

Mentioned in descriptions 20 866 varieties reference book.

Variety tolerance is the ability of a plant to withstand pathogen infection or the influence of abiotic factors, such as drought or salinity, without a significant decrease in productivity. In contrast to resistance, where the plant blocks the development of the pathogen, a tolerant variety becomes infected and bears signs of the disease, yet its physiological processes allow it to maintain a satisfactory yield level.

Tolerance assessment is conducted under disease pressure conditions by comparing the yield of varieties with the same degree of infection. When analyzing diseases, rating scales are used, where varieties with a high degree of infection but an insignificant drop in yield are classified as tolerant. Physiological indicators of resistance to abiotic stresses include data on germination, root system development, and the condition of the photosynthetic apparatus.

The complex trait of tolerance is expressed through the yield reduction coefficient: the lower the drop in productivity under strong factor impact, the higher the indicator. It is agronomically important that tolerant varieties act as latent carriers of pathogens, contributing to their accumulation in the field, which requires increased attention to phytosanitary monitoring even when plants appear healthy.

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.

Kisolin

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

Biotehniška fakulteta, Oddelek za agronomijo

SI
2 records

Kravitz

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
4 records

Kosma

Active

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

Bejo Zaden B.V.

NL
3 records

Krasotka

Active

Solanum lycopersicum L. · Tomato

OOO 'AGROFIRMA 'SEDEK'

UA
3 records

Katy

Active

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

CZ
4 records

KBN106

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

THE KIBAN

PL
2 records

Kasos

Active

Cucurbita pepo L. · Field pumpkin

Syngenta Seeds B.V.

NL
2 records

Karmian

Active

Lactuca sativa L. · Lettuce

Syngenta Seeds B.V.

NL
6 records

Karneval

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Sakata Seed Corporation, JP

FR
3 records

Karneol

Active

Malus domestica (Suckow) Borkh. · Apple

Magdolna Tóth^^^Szilvia Kovács^^^László Szalay^^^Gitta Ficzek

HU
3 records

Konzugo

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

NL
4 records

Kalamis

Active

Helianthus annuus L. · Sunflower

Ozen Ali

UA
4 records

Katja

Application submitted

Solanum lycopersicum L. · Tomato

Western Seed International B.V.

BG
2 records

Karpatis

Active

Zea mays L. subsp. mays (Maize Group) · Maize

KWS SAAT SE&CO.KGaA, DE

HR
2 records

Kom

Active

Solanum lycopersicum L. · Tomato

Hristo Georgiev

BG
3 records

Kalóz

Active

Capsicum annuum L. · Bell pepper

MÁRKUS FERENC^^^KAPITÁNY JÓZSEF^^^Gábor Csilléry^^^János Szarka^^^PÉK MIKLÓS

HU
4 records

Kairoh

Application submitted

Cucurbita pepo L. · Field pumpkin

Sakata Vegetables Europe SAS (FR)/Sakata Seed Sudamerica Ltd (BR)

FR
2 records

Karmavy

Active

Lupinus angustifolius L. · Narrow-leaf lupin

RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NAN BELARUSI PO ZEMLEDELIYU»

CZ
3 records

Kapdar 2

Active

Physocarpus opulifolius (L.) Maxim. · Ninebark

Dariusz Kapias

PL
2 records

Jouvence

Active

Avena sativa L. · Oat

LEMAIRE DEFFONTAINES S.A.S.

FR
3 records

Kanshin

Active

Solanum lycopersicum L. · Tomato

Ikasido Global Group B.V (NL)

BG
3 records

Julius

Active

Apium graveolens L. var. dulce (Mill.) Pers. · Celery

TOZER SEEDS LTD

NL
2 records

Jetty

Active

Spathiphyllum Schott · Spathiphyllum

Brouwer, Wim A. J.|Nootdorp, Netherlands

NL
2 records

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