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
PIONEER OVERSEAS CORPORATION
Hordeum vulgare L. · Barley
W WEIBULL
Triticum aestivum L. · Bread wheat
Reiner, Bothe Erhard, Ebmeyer
Triticum aestivum L. · Bread wheat
Nickerson International Research SNC (FR)
Zea mays L. · Maize
NS ratarstvo (YU)
Helianthus annuus L. · Sunflower
VANDERHAVE RESEARCH
Helianthus annuus L. · Sunflower
Pisum sativum L. · Pea
Saatzucht Aschersleben Herrn Dr. Peter Römer
Helianthus annuus L. · Sunflower
Euralis Semences FR
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Hordeum vulgare L. · Barley
Saatzucht Donau GmbH & Co.KG
Triticum aestivum L. · Bread wheat
PRO.SE.ME S.R.L.
Pisum sativum L. · Pea
KWS LOCHOW GMBH, Germany
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Pisum sativum L. · Pea
SAS FLORIMOND-DESPREZ Veuve et Fils
Glycine max (L.) Merr. · Soybean
Gerardo Luis Bartolome
Zea mays L. · Maize
Dekalb Genetics Corporation
Zea mays L. · Maize
Syngenta participation AG
Zea mays L. · Maize
SYNGENTA SEEDS AG, CH
Brassica napus var. napus · Rapeseed
RAPS Gbr Saatzucht Lundsgaard (DE)
Zea mays L. subsp. mays (Maize Group) · Maize
SYNGENTA SEEDS AG, CH
Zea mays L. subsp. mays (Maize Group) · Maize
KWS SAAT SE & CO.KGAA
Brassica napus L. · Rapeseed
Deutsche Saatveredelung AG,DE
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG