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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.

Iliturgitana

Active

Olea europaea L. · Olive

Lorenzo León Moreno^^^Raúl de la Rosa Navarro

1 record

IBSZ0007

Active

Iberis sempervirens x Iberis umbellata

Syngenta Crop Protection AG

1 record

Innemnewpa

Withdrawn

Nemesia Vent. · Nemesia

Silvia Hofmann

1 record

EURCA1712

Withdrawn

Echeveria agavoides Lem. · Molded wax agave

Euro Cactus Holland B.V.

1 record

Frans Hals

Terminated

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

1 record

Helen Froehlich

Active

Vitex pseudonegundo (Hausskn.) Hand.-Mazz.

Kris Jarantoski

1 record

Electric Red

Withdrawn

Dianthus caryophyllus L. · Carnation

Hans A. Hansen

1 record

Heavenly Dream

Terminated

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

HARINI KORLIPARA

1 record

Double Fashion

Terminated

Helleborus niger L. · Christmas rose

Thierry Van Paemel

1 record

Dopenpribl

Active

Penstemon barbatus (Cav.) Roth · Beardlip penstemon

Dümmen Group B.V.

1 record

Goldstern

Withdrawn

Bidens ferulifolia (Jacq.) DC. · Apache beggartick

Hubert Brandkamp

1 record

Golden Orb

Terminated

Calochortus Pursh. · Globe Tulip

DE GOEDE WILHELMUS H

1 record

Gerrouge

Withdrawn

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

GERAFLOR

1 record

ET RDB 621

Active

Hybrids between Echinacea purpurea and Rudbeckia hirta

Eternal Plant Boijl B.V.

1 record

Gold Prize

Terminated

Cistus x hybridus Pourr.

WYEVALE CONTAINER PLANTS

1 record

Elsie

Withdrawn

Hylotelephium spectabile (Boreau) H. Ohba · Ice plant

Robert Bett

1 record

DBIDWHTDEL

Terminated

Bidens ferulifolia (Jacq.) DC. · Apache beggartick

Gavriel Danziger

1 record

Ebony

Withdrawn

Leucadendron laureolum (Lam.) Fourc.

King Flora Nurseries

1 record

Delice Hesperides

Application submitted

Salvia microphylla Kunth · Baby sage

Jan De Busschere

1 record

Duebiimyel

Terminated

Bidens ferulifolia (Jacq.) DC. · Apache beggartick

Tobias Dümmen

1 record

Fairy Hair

Active

Hybrids between Aruncus dioicus (Walter) Fernald and Aruncus aethusifolius (H. Lév.) Nakai

Hans A. Hansen

1 record

Eye Candy

Withdrawn

Phlox subulata L. · Creeping phlox

Hans A. Hansen

1 record

Express

Active

Salix alba L. · White willow

Jeno János Németh

1 record

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