Variety traits
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.
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.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International, Inc Pioneer Overseas Corporation
Daucus carota L. · Carrot
Vilmorin & Cie
Zea mays L. subsp. mays (Maize Group) · Maize
SYNGENTA SEEDS AG, CH
Allium cepa L. var. cepa · Onion
SAKATA VEGETABLES EUROPE SAS
Begonia L. · Begonia
Man, Jan|Lisse, Netherlands
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER OVERSEAS CORPORATION
Brassica oleracea L. (White Cabbage Group) · White cabbage
NONGWOO BIO CO.LTD
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER HI-BRED INT.INC/PIONEER OVERSEAS CORP.
Avena nuda L. · Naked oat
Danko Hodowla Roslin Sp.z.o.o.
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Overseas Corporation US (USA)
Triticum aestivum L. · Bread wheat
HUN-REN Agrártudományi Kutatóközpont
Phaseolus vulgaris L. · Common bean
GSN Semences SAS (FR)
Lactuca sativa L. · Lettuce
ROYAL SLUIS
Cucumis melo L. · Melon
Golden West Seed Co.
Beta vulgaris Fodder Beet Group · Mangelwurzel
KWS| KWS SAAT AG
Lactuca sativa L. · Lettuce
SOUTHERN SEED S.R.L.
Hordeum vulgare L. · Barley
SEMILLAS BATLLE, S.A.
Sorghum bicolor (L.) Moench · Sorghum
Pushkar Vaidya
Cucumis melo L. · Melon
Nunhems BV (NL)
Juglans regia L. · Persian walnut
Triticum aestivum L. · Bread wheat
PIONEER HI-BRED INTERNATIONAL
Zea mays L. subsp. mays (Maize Group) · Maize
Maisadour Semences, FR
Zea mays L. · Maize
Tothne.Zsubori Zsuzsanna, Spitko Tamas, Szoke Csaba, Berzy Tamas, Pinter Janos, Hadi Geza, Marton L.Csaba,