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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

Drought tolerance of maize 133 Drought Tolerance of Grapevine 122 Drought tolerance of sunflower 75 Drought tolerance of potato 53 Drought resistance — common wheat 46 Drought Tolerance of Grapevine 43 Drought tolerance — tall fescue 43 Drought tolerance of maize 41 Drought tolerance of olive 33 Drought tolerance of roses 32 Drought tolerance — perennial ryegrass 27 Drought tolerance of barley 25 Drought resistance — durum wheat 21 Drought Tolerance — Red Fescue 21 Drought tolerance — Echinacea (hybrids) 21 Drought tolerance of alfalfa 20 Drought tolerance of common bean 16 Drought tolerance — Lavandula stoechas 16 Drought tolerance of Echinacea 16 Drought tolerance of Coreopsis 16 Drought tolerance — Echinacea purpurea 14 Drought tolerance of Sedum 13 Drought tolerance of pear 13 Drought Tolerance — Strawberry 13

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.

Big Red

Active

Syzygium australe (J. C. Wendl. ex Link) B. Hyland · Brush cherry

Peta Mclean, Scott Mclean

3 records

Beacon

Active

Festuca ovina L. · Sheep's fescue

Mountain View Seeds

4 records

Audelmag

Active

Aubrieta Adans. · Rock cress

Syngenta Seeds B.V.

3 records

Checkin

Active

Lamium maculatum L. · Spotted dead-nettle

Nobbmann Lu|D-35625 Huttenberg, DE

3 records

Canberra Bells

Active

Correa Andrews · Australian fuchsia

Peter James Ollerenshaw

3 records

Barnsley Baby

Active

Lavatera L. · Tree mallow

Wilko Karmelk^^^Helen Lewis

3 records

Balyriclu

Active

Salvia x sylvestris L. · Wood sage

PAN AMERICAN SEED CO

3 records

Amethyst Falls

Active

Wisteria frutescens (L.) Poir. · American wisteria

Robert H Head, William A Head and Lisa J Head

3 records

Balmircher

Active

Salvia greggii A. Grey · Autumn sage

Troy Thorup

3 records

Baluptgonz

Active

Coreopsis L. · Tickseed

Winner Blair

3 records

Balchryran

Active

Buddleja L. · Buddleia

Trees Scott C

3 records

Botex 012

Active

Buddleja davidii Franch. · Butterfly bush

Koot Johannes Adrianus Maria

3 records

Blue Marvel

Active

Salvia x sylvestris L. · Wood sage

Kievit Christa

4 records

Avalanche

Active

Echinacea purpurea (L.) Moench · Purple coneflower

Blom Arie|3452 AR Vleuten, NL

3 records

Baluptred

Active

Coreopsis L. · Tickseed

Winner Blair

3 records

Amazing jackpot

Active

Eryngium planum L. · Blue eryngo

HUIBERT ANNE DE BOER

3 records

Baltincite

Active

Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch · Lindheimer's beeblossom

PAN AMERICAN SEED CO

3 records

Balmirdepur

Active

Salvia greggii A. Grey · Autumn sage

Troy Thorup

3 records

AGA04051

Active

Agapanthus L'Hér. · Lily of the Nile

Vance James Hooper, Vance James Hooper

3 records

African Albino

Active

Haworthiopsis fasciata (Willd.) G. D. Rowley · Zebra haworthia

van der Hoorn Antonius C. J.

4 records

Autumn Gold

Active

Helianthus salicifolius A. Dietr. · Willow-leaf Sunflower

Trees Scott C

4 records

B12

Active

Stenotaphrum secundatum (Walter) Kuntze · St. Augustine grass

Todd Layt, Abulk

3 records

Abelops

Active

Abelia x grandiflora Rehder · Glossy abelia

van Opstal Ronnie A.|Zundert 4882 NM, NL

3 records

12ROSK1

Active

Delosperma cooperi (Hook. f.) L. Bolus · Trailing ice plant

Koichiro Nishikawa

3 records

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