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.
Zea mays L. · Maize
MONSANTO TECHNOLOGY
Helianthus annuus L. · Sunflower
SEMILLAS BATLLE S.A.
Zea mays L. · Maize
ROBERT TAUCHER
Zea mays L. · Maize
Ludwig Feldmeier
Zea mays L. · Maize
Marcelo Queijo
Zea mays L. · Maize
MAS SEEDS
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Zea mays L. · Maize
SAATZUCHT GLEISDORF GESMBH
Zea mays L. subsp. mays (Maize Group) · Maize
GIE Sockalb (FR)
Zea mays L. · Maize
Syngenta Crop Protection AG
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Crop Protection AG, CH
Zea mays L. · Maize
Syngenta Crop Protection AG
Zea mays L. · Maize
MOMMERSTEEG INTERNATIONAL
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Malus Mill. · Apple
Murawski en Fischer
Triticum aestivum L. subsp. aestivum · Bread wheat
W. von Borries-Eckendorf GmbH & Co.KG
Festuca rubra L. · Red fescue
L. DÆHNFELDT A/S
Zea mays L. subsp. mays (Maize Group) · Maize
Maisadour Semences, FR
Brassica napus L. · Rapeseed
PIONEER OVERSEAS CORPORATION
Festuca trachyphylla (Hack.) Hack. · Hard fescue
RITZEMA| Dineke Ritzema c/o Dansk Planteforaedling A/S (DLF-Trifolium A/S)
Zea mays L. · Maize
Euralis Semences
Lactuca sativa L. · Lettuce
Sativa coop (IT)
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. subsp. mays (Maize Group) · Maize
LIMAGRAIN EUROPE