Variety traits
Drought tolerance of a variety is the ability of a plant to maintain productivity and crop quality under conditions of moisture deficit and dry air. This property is based on mechanisms of drought escape, water conservation, and physiological tissue endurance.
Mentioned in descriptions 12 470 varieties reference book.
Drought tolerance is expressed as the ability of a variety to maintain stable productivity during soil moisture shortages. The trait is manifested through biological drought escape in early-maturing forms, anatomical and morphological adaptations such as waxy bloom and leaf pubescence, as well as the physiological resistance of cellular systems to dehydration and high temperatures.
Tolerance assessment in the variety testing system is conducted by field comparison with a standard during adverse years, where the variety is rated in scores based on yield levels. Additionally, visual symptoms are taken into account, including leaf rolling, plant height, and the retention of green color (stay-green), as well as laboratory indicators of tissue water-holding capacity and proline accumulation.
The effectiveness of a variety depends on its plasticity and ability to pass through critical development phases, such as jointing or heading, without critical loss of productivity. Drought tolerance often correlates with overall adaptability to other stress factors; therefore, when selecting, it is important to consider the homeostatic nature of the variety and the results of trials in specific agro-climatic zones.
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.
Secale cereale L. · Rye
Schmiedchen Brigitta, Menzel Jutta, Wilde Peer,
Solanum tuberosum L. · Potato
R.P.GRAVELAND
Lolium perenne L. · Perennial ryegrass
DLF Trifolium A-S, DK
Festuca ovina L. · Sheep's fescue
SAATZUCHT STEINACH GMBH and CO KG
Solanum tuberosum L. · Potato
Wolfgang Walter
Lolium perenne L. · Perennial ryegrass
Institute of Grasslands & Environmental Research
Festuca arundinacea Schreb. · Tall fescue
WRIGHTSON PAS S.A.
Rosa L. · Rose
Reinhard Noack, Reinhard Noack
Solanum tuberosum L. · Potato
TPC Research BV
Hordeum vulgare L. · Barley
Claus Einfeldt
Triticum aestivum L. · Bread wheat
Rainer Bouze
Glycine max (L.) Merr. · Soybean
ZELENTSOV SERGEJ VIKTOROVICh / MOShNENKO ELENA VALENTINOVNA / TRUNOVA MARINA VALERIEVNA / TKAChEVA ANTONINA ALEKSANDROVNA / BUDNIKOV EVGENIJ NIKOLAEVICh / BUBNOVA LYuBOV' ALEKSANDROVNA / VALIEV FANIS FAATOVICh
Helianthus annuus L. · Sunflower
Syngenta Crop Protection,CH
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Triticum aestivum L. · Bread wheat
Ragt, F
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Dactylis glomerata L. · Cocksfoot
Oseva Uni a.s.
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
TOMAS NOVACEK
Helianthus annuus L. · Sunflower
Euralis Semences
Zea mays L. · Maize
Syngenta France SAS
Zea mays L. · Maize
Syngenta Crop Protection AG Seeds Divison
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus var. napus · Rapeseed
Norddeutsche, D