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

Maize tolerance 721 Sunflower tolerance 633 Maize tolerance 361 Tolerance — Sugar Beet 354 Tolerance — soft wheat 336 Tolerance in Lettuce 236 Tomato Tolerance 234 Cucumber tolerance 204 Rapeseed tolerance 168 Tolerance in White Cabbage 140 Pepper Tolerance 122 Barley tolerance 119 Tolerance — Soybean 117 Bean tolerance 81 Rapeseed tolerance 74 Potato tolerance 71 Rose tolerance 64 Zucchini Tolerance 61 Melon tolerance 61 Plum tolerance 58 Grapevine Tolerance 56 Peach tolerance 55 Pea tolerance 55 Triticale Tolerance 54

Found in these crops

Maize 718 Sunflower 670 Sugar beet 368 Bread wheat 342 Tomato 336 Maize 322 Cucumber 309 Lettuce 301 Rapeseed 190 Bell pepper 189 White cabbage 180 Perennial ryegrass 139

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.

RH08025

Withdrawn

Zea mays L. · Maize

RAGT 2N S.A.S

1 record

Ranoki F1

Terminated

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

Robert Prieur

1 record

Ramires

Active

Helianthus annuus L. · Sunflower

Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»

2 records

Red Bull F1

Active

Allium cepa L. · Onion

Ger Bimsdeboer

1 record

Puławska Pastwiskowa

Terminated

Poa pratensis L. · Kentucky bluegrass

Malopolska Hodowla Roslin Spolka z o.o.

1 record

Raymond F1

Active

Cucumis melo L. · Melon

Moshe Zalsman

2 records

Regenta

Active

Dactylis glomerata L. · Cocksfoot

Lietuvos agrarinių ir miškų mokslų centras

1 record

Regalfin

Terminated

Phaseolus vulgaris L. · Common bean

Vilmorin SA (FR)

2 records

Refren ISK

Withdrawn

Vitis L. · Grapevine

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Prospera Active Lihi

Application submitted

Ocimum basilicum L. · Basil

GENESIS SEED LTD

1 record

PSTR6LA

Withdrawn

Cynodon dactylon (L.) Pers. · Bermuda grass

PURE SEED TESTING

1 record

PST5WMB

Terminated

Festuca arundinacea Schreb. · Tall fescue

PURE SEED TESTING

1 record

Rais F1

Active

Cucumis sativus L. · Cucumber

Shevkunov Valerii Mykolaiovych, Shamshyna Hanna Viacheslavivna, Portiankin Oleksii IEvhenovych, Havrysh Serhii Fedorovych,

2 records

Rafaela F1

Terminated

Capsicum annuum L. · Bell pepper

Jan Prasil

1 record

PSG366

Active

Poa pratensis L. · Kentucky bluegrass

PICKSEED

1 record

Pryma liuks F1

Terminated

Solanum lycopersicum L. · Tomato

Panchev IUrii Ivanovych

2 records

Promin`

Terminated

Solanum tuberosum L. · Potato

Romaniuk Ol`ha Petrivna, Kostiuk Ivan Ivanovych, Vermenko IUrii IAkovych, Kononuchenko Alla Oleksiivna, Razkevych Mykola Pylypovych, Ostrenko Mykhailo Volodymyrovych, Tarasenko Oleh Oleksandrovych, Osypchuk Alla Andriivna, Taktaiev Borys Anatoliiovych, Na

2 records

Prosna

Withdrawn

Zea mays L. · Maize

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

1 record

Reaction

Terminated

Brassica oleracea L. (Cabbage Group) · Cabbage

Bejo Zaden BV (NL)

1 record

Prismatica F1

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Dr. Mario Martinelli

2 records

RARES

Active

Prunus armeniaca L. · Apricot

BALAN VIORICA

1 record

Princessa

Terminated

Solanum lycopersicum L. · Tomato

Dutch American Plantbreeders Corp.

1 record

Presto F1

Application submitted

Cucumis sativus L. · Cucumber

Yan Kulstra

2 records

Prospera Active Gali

Application submitted

Ocimum basilicum L. · Basil

GENESIS SEED LTD

1 record

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.