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.
Vicia villosa Roth · Hairy vetch
SOUTH AUSTRALIAN SEED GROWERS CO-OPERATIVE LTD
Festuca rubra L. · Red fescue
SEMENCES DE FRANCE
Hedysarum coronarium L. · Sulla
Mediterranea Sementi S.R.L
Helianthus annuus L. · Sunflower
BORODIN SERGEJ GEORGIEVICh / ILATOVSKIJ VLADIMIR PLATONOVICh / DETSYNA ALEKSANDR ALEKSANDROVICh / PIGROVA SVETLANA KUZ'MINIChNA / POLTORAKA ALEKSANDR ALEKSEEVICh / BYaTETS VIKTOR IVANOVICh
Solanum tuberosum L. · Potato
Station de Recherche du ComitÚ Nord
Festuca arundinacea Schreb. · Tall fescue
KWS
Lolium perenne L. · Perennial ryegrass
DLF Seeds A-S, DK
Solanum tuberosum L. · Potato
Karsten Ellenberg
Festuca arundinacea Schreb. · Tall fescue
RAGT 2N S.A.S
Festuca arundinacea Schreb. · Tall fescue
Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey
Poa pratensis L. · Kentucky bluegrass
Rutgers, The State University of New Jersey - Cook College
Poa pratensis L. · Kentucky bluegrass
BARENBRUG HOLLAND
Triticum durum Desf. · Durum wheat
Societa Produttori Sementi S.p.A
Raphanus sativus L. var. oleiformis Pers. · Oil radish
PHP PETERSEN
Sinapis alba L. · White mustard
P.H. Petersen Saatzucht Lundsgaard GmbH Herrn Asmus Sören Petersen / Michaela Schlathölter
Festuca rubra L. · Red fescue
Deutsche Saatveredelung AG - DSV (DE)
Festuca arundinacea Schreb. · Tall fescue
Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey
Festuca rubra L. · Red fescue
DLF Seeds A/S
Vitis vinifera L. · Common grape vine
Walker Michael Andrew / Tenscher Alan C. / Riaz Summaira / Romero Ninfa
Hordeum vulgare L. · Barley
Claus Einfeldt
Festuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
Lolium perenne L. · Perennial ryegrass
DLF Pickseed
Poa pratensis L. · Kentucky bluegrass
Cascade International Seed Company
Lolium perenne L. · Perennial ryegrass
ABERYSTWYTH UNIVERSITY