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.
Helianthus annuus L. · Sunflower
Nicolae Boaghe, Elena Andreea Teodorescu
Medicago sativa L. · Alfalfa
Jiri Babinec, Oldrich Chloupek,
Helianthus annuus L. · Sunflower
UPL FRANCE
Helianthus annuus L. · Sunflower
UPL FRANCE
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Triticum aestivum L. · Bread wheat
Malopolska Hodowla Roslin Spolka z o.o.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE&CO.KGaA, DE
Beta vulgaris Sugar Beet Group · Sugar beet
KWS, D
Cucumis sativus L. · Cucumber
Zoldesegtermesztesi Kutato Intezet RT (HU)
Brassica napus var. napus · Rapeseed
Monsanto International Sarl (CH)/Deutsche Saatveredelung AG - DSV (DE)
Helianthus annuus L. · Sunflower
Euralis Semences FR
Trifolium pratense L. · Red clover
GOLEBIOWSKI| Andrzej Golebiowski c/o Przedsiebiorstwo Hodowlano-Nasienne
Helianthus annuus L. · Sunflower
Euralis Semences FR
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
NS ratarstvo (YU)
Avena sativa L. · Oat
Saatzucht Edelhof
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Remi Leviel
Chrysanthemum L. · Chrysanthemum
Meek, Jack M.|Salinas, CA / Duffett, William E.|Salinas, CA
Cucumis sativus L. · Cucumber
MORAVOSEED
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Pisum sativum L. · Pea
Poznanska Hodowla Roslin Sp. z o.o
Cucumis sativus L. · Cucumber
MORAVOSEED
Brassica napus var. napus · Rapeseed
MORTEN HELT POULSEN