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.
Brassica napus var. napus · Rapeseed
MAS Seeds,FR
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER OVERSEAS CORPORATION
Glycine max (L.) Merr. · Soybean
Sevita Genetics (CA)
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER OVERSEAS CORPORATION
Cucumis melo L. · Melon
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Trifolium subterraneum L. · Subterranean clover
NEW SOUTH WALES, DEP.AGR.
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac
Karel Zavadil
Brassica napus var. napus · Rapeseed
Lidea France SAS, FR
Beta vulgaris Fodder Beet Group · Mangelwurzel
Zwaan&De Wiljes' Zaadt en Zaadh B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
Marco De Biaggi
Brassica napus var. napus · Rapeseed
MAS Seeds,FR
Zea mays L. · Maize
Dr. Kovacs Karoly, Dr. Kizmus Lajos, Dr. Hadi Geza, Dr. Szundy Tamas, Dr. Pinter Janos, Dr. Marton L. Csaba,
Brassica napus var. napus · Rapeseed
KWS SAAT SE&CO.KGaA, DE
Brassica napus var. napus · Rapeseed
LIDEA FRANCE SAS
Hordeum vulgare L. · Barley
KWS UK LTD
Daucus carota L. · Carrot
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Lactuca sativa L. · Lettuce
Novartis Seeds B.V., NL-1600 AA Enkhuizen
Brassica napus var. napus · Rapeseed
Marie-Aude Vanhersecke
Triticum aestivum L. · Bread wheat
KWS MOMONT RECHERCHE SARL, FR
Triticum aestivum L. · Bread wheat
KWS MOMONT RECHERCHE SARL, FR
Rosa L. · Rose
W. Kordes Sohne Rosenschulen GmbH & Co KG| DE