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.
Helianthus annuus L. · Sunflower
Saaten Union Romania SRL
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
MAURIZIO BACCHI
Festuca arundinacea Schreb. · Tall fescue
PICKSEED WEST INC
Phleum pratense L. · Timothy grass
Oseva Uni a.s., CZ
Hordeum vulgare L. · Barley
Roothaan, M.E.
Triticum aestivum L. · Bread wheat
SAATZUCHT JOSEF BREUN GmbH&Co.KG
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH, Probstdorf AT
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV (NL)
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Rustica Prograin Genetique
Triticum aestivum L. · Bread wheat
Rozalia Kadar, Maria Moldovan, Vasile Moldovan,
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
New Fruits, I
Hordeum vulgare L. · Barley
SAATZUCHT JOSEF BREUN GmbH&Co.KG
Solanum tuberosum L. · Potato
BRETAGNE PLANTS INNOVATION S.A.S./Germicopa Breeding SAS
Vitis L. · Grapevine
Triticum aestivum L. · Bread wheat
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^László Szunics^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros^^^Szücs Péter^^^Szunics Lászlóné
Pisum sativum L. · Pea
Toft Plant Breeding APS
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK
Festuca arundinacea Schreb. · Tall fescue
Valley Seeds Pty Ltd
Triticum aestivum L. · Bread wheat
Poznanska Hodowla Roslin Sp. z o.o
Sorghum bicolor (L.) Moench · Sorghum
Franck CHAUVEAU
Festuca arundinacea Schreb. · Tall fescue
RAGT 2N S.A.S
Cucurbita maxima Duchesne x Cucurbita moschata Duchesne
Syngenta Seeds, NL