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.
Glycine max (L.) Merr. · Soybean
University of Guelph Department of Plant Agriculture
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Glycine max (L.) Merr. · Soybean
Institut za ratarstvo i povrtarstvo, Novi Sad
Zea mays L. · Maize
Pioneer Overseas Corporation, USA
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Linum usitatissimum L. · Common flax
Terre de Lin Sca (FR)
Festuca arundinacea Schreb. · Tall fescue
Barenbrug USA
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Zea mays L. · Maize
Rashko Popov, Lazar IAkovlevich, Drahitsa Simich,
Cucumis sativus L. · Cucumber
SEMILLAS FITO, S.A.
Festuca arundinacea Schreb. · Tall fescue
DLF SEEDS A/S
Daucus carota L. · Carrot
BEJO ZADEN
Lactuca sativa L. · Lettuce
NUNHEMS
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Siboni Adriana, Raggi Giordano, Marchetti Enrico, Bernardini Danilo,
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Cucumis melo L. · Melon
ASGROW SEED COMPANY
Brassica oleracea L. (Broccoli Group) · Broccoli
MORAVOSEED
Helianthus annuus L. · Sunflower
May Agro Seed Industry and Trade Corporation
Festuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
Poa pratensis L. · Kentucky bluegrass
Mayer, Eugene W.|Marysville, OH / Fuchigami, Torao T.|Long Beach, CA