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.
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Medicago sativa L. · Alfalfa
SCHITEA MARIAMARTURA TEODORVARGA PAUL MIHAIL
Juniperus semiglobosa Regel · Himalayan pencil juniper
Elemér Barabits
Trifolium pratense L. · Red clover
Malopolska Hodowla Roslin Spolka z o.o.
Festuca ovina L. · Sheep's fescue
Advanta Seeds B.V. (NL)
Helianthus annuus L. · Sunflower
PETRAN ALEXANDRU VIORELDRAGHIA VIOLETA CONSTANTAOPROI ADRIANA CRISTINA
Triticum aestivum L. · Bread wheat
Marinina Liubov Ivanivna, Lytvynenko Raisa Ivanivna, Maksymov Mykola Havrylovych, Babaiants Lazar Tihranovych, Parfentiev Mykhailo Hryhorovych, Reshetnykova Valentyna Semenivna, Ptashenchuk Oleksandr Mykytovych, Honcharuk Nina Oleksandrivna, Lytvynenko My
Lolium perenne L. · Perennial ryegrass
Jonathan Green & Sons, Inc., Cascade International Seed Company
Rubus L. subg. Rubus · Blackberry
SCOTTISH CROP RESEARCH INSTITUTE
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG
Festuca arundinacea Schreb. · Tall fescue
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Solanum tuberosum L. · Potato
Bretagne-Plants S.C.I.C.A.
Festuca arundinacea Schreb. · Tall fescue
Rutgers, the State University of New Jersey and Novel AG, Inc.
Dactylis glomerata L. · Cocksfoot
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
x Festulolium Aschers. et Graebn. · Festulolium
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Oryza sativa L. · Rice
S.I.S. SOCIETA' ITALIANA SEMENTI
Raphanus sativus L. var. oleiformis Pers. · Oil radish
BARENBRUG BELGIUM
Triticum aestivum L. · Bread wheat
Limagrain Europe S.A.S
Zea mays L. · Maize
KWS, D
Agrostis canina L. · Velvet bent
Lebanon Seaboard Corporation
Zea mays L. · Maize
Rainer Laipert
Solanum tuberosum L. · Potato
Kmetijski Inštitut Slovenije (Agricultural Institute of Slovenia)
Hordeum vulgare L. · Barley
Muranyi Istvan / Pap Miklos