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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.

Lanin

Terminated

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Fides B.V.

1 record

Kiegabi

Terminated

Agastache Clayt. ex Gronov. · Giant hyssop

Kieft Bloemzaden B.V.

1 record

Jolavwhi

Withdrawn

Lavatera x clementii Cheek

Hyfryd Plants

2 records

INCLESRCAR

Active

Tarenaya houtteana (Schltdl.) Soares Neto & Roalson · pink-queen

Silvia Hofmann^^^Friedhelm Leuchtenbderger

1 record

Ilvoclou

Active

hybrids between Hydrangea macrophylla (Thunb.) Ser. and Hydrangea serrata (Thunb.) Ser.

Instituut voor Landbouw- en Visserijonderzoek (ILVO) Eenheid Plant

1 record

Karleys Rose

Active

Cenchrus orientalis (Rich.) Morrone · Oriental pennisetum

Sunny Border Nurseries

1 record

KLEKB20038

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Henk Dresselhuys

1 record

IRTAMB-A22-120

Active

Prunus dulcis (Mill.) D. A. Webb · Almond

IRTA (G. CATALUÑA)

1 record

KLEKB20027

Terminated

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Henk Dresselhuys

1 record

INHELSOGIA

Active

Heliopsis helianthoides (L.) Sweet · Oxeye sunflower

Silvia Hofmann

1 record

KLEAT12609

Terminated

Arctotis L. · African daisy

Nuflora International Pty Ltd

1 record

KIS Škrlatica

Application submitted

Solanum tuberosum L. · Potato

Kmetijski Inštitut Slovenije (Agricultural Institute of Slovenia)

1 record

Hachlila

Active

Dasiphora fruticosa (L.) Rydb. subsp. fruticosa · Shrubby cinquefoil

Holger Hachmann

1 record

H2f3

Active

Paulownia catalpifolia x Paulownia fortunei

WEGROW GERMANY GMBH

1 record

IB 005-6

Application submitted

Anisodontea capensis (L.) D. M. Bates

Plant Growers Australia Pty Ltd

1 record

Gerpelrouge

Withdrawn

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

GERAFLOR

1 record

JS Ivos Poem

Active

Echinacea purpurea (L.) Moench · Purple coneflower

Spruyt Select CommV

1 record

Gerdobfra

Terminated

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

GERAFLOR

1 record

Gendipdured

Terminated

Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine

Gerd Endisch

1 record

Jb

Active

x Tritordeum (Hordeum chilense x Triticum turgidum)

Agrasys S.L.

1 record

Hearts Desire

Terminated

Dianthus plumarius L. · Garden pink

PAMELA S.SCHWEIZER

1 record

INNEMLCO15

Withdrawn

Nemesia Vent. · Nemesia

Silvia Hofmann

1 record

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