Variety traits

Drought tolerance

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.

Sources10

Breakdown by crop

Found in these crops

Maize 642 Sunflower 393 Bread wheat 302 Maize 227 Grapevine 212 Potato 148 Tall fescue 144 Barley 113 Rose 89 Common grape vine 87 Red fescue 82 Rapeseed 77

Varieties that feature this in their description

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.

Veluwe

Active

Calluna vulgaris (L.) Hull · Common heather

H. C. Hoekert

3 records

Tuscany

Protection expired

Festuca arundinacea Schreb. · Tall fescue

FRR Cooperative (US)

3 records

Vercors

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Cal/West Seeds (US)

3 records

Trinaseed

Active

Cynara cardunculus L. · Cardoon

Salvatore Antonio Raccuia

4 records

Trudan headless

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Sud Cereales SCA

3 records

TURUNChUK

Active

Triticum aestivum L. · Bread wheat

LYFENKO SAVELIJ FILIPPOVICh / ERINYaK NIKOLAJ IVANOVICh / FEDChENKO VLADIMIR PAVLOVICh / NARGAN TAT'YaNA PAVLOVNA / DOROFEEVA ZINAIDA DMITRIEVNA / RODENKO GALINA ANATOL'EVNA / BREDINSKAYa NADEZhDA STEPANOVNA / D'YaChENKO NADEZhDA EGOROVNA

5 records

Tilmor

Active

Hordeum vulgare L. · Barley

Danko Hodowla Roslin Sp.z.o.o.

5 records

Tiber

Terminated

Oryza sativa L. · Rice

CIRAD-BIOS (FR)/Centre Francais du Riz (FR)

4 records

Tetim

Terminated

Onobrychis viciifolia Scop. · Common sainfoin

CREA - CENTRO DI RICERCA PER LA ZOOTECNIA ED ACQUACOLTURA (CREA-ZA)

3 records

Terka

Active

Festuca rubra L. · Red fescue

Oseva Uni a.s., CZ

4 records

Titanium LS

Active

Festuca arundinacea Schreb. · Tall fescue

Rutgers University

3 records

Temptation

Active

Festuca arundinacea Schreb. · Tall fescue

Valley Seeds Pty Ltd

3 records

Sword

Active

Festuca trachyphylla (Hack.) Hack. · Hard fescue

Rutgers, the State University of New Jersey and Novel AG, Inc.

3 records

SW Columba

Protection expired

Festuca rubra L. · Red fescue

Dr. Peder Weibull c/o Lantmännen SW Seed AB

4 records

Supporter

Active

Solanum tuberosum L. · Potato

Sloots Aardappelkweekbedrijf B.V.

5 records

Sumo

Terminated

Triticum aestivum L. · Bread wheat

Saaten Union Recherche (FR)

4 records

Strymonas

Protection expired

Triticum aestivum L. · Bread wheat

HAO-DEMETER - Cereal Institute

4 records

Sucrosorgo 405

Active

Sorghum bicolor (L.) Moench · Sorghum

Sud Cereales SCA

4 records

Stonewall

Active

Festuca arundinacea Schreb. · Tall fescue

JACKLIN SEED

3 records

SUCRINE

Active

Lactuca sativa L. · Lettuce

Domaine Public (FR)

3 records

Struna

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

5 records

Sun Devil

Active

Festuca arundinacea Schreb. · Tall fescue

Barenbrug USA

3 records

Spyglass

Active

Lolium perenne L. · Perennial ryegrass

Barenbrug USA

3 records

Sugar Graze II

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

COFFEY FORAGE SEEDS INC.

3 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.