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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.

Green Envy

Active

Echinacea purpurea (L.) Moench · Purple coneflower

Mark Veeder

2 records

Fancy Frills

Active

Echinacea purpurea (L.) Moench · Purple coneflower

Korlipara Harini|Canby, OR, US

2 records

FAIR 16

Active

Lavandula angustifolia Mill. · English lavender

David Christie

2 records

Dogailspinman

Active

Gaillardia aristata Pursh · Blanketflower

van Sambeek Ellen

2 records

DOW4

Active

Lavandula angustifolia Mill. · English lavender

Downderry Nursery Ltd.

2 records

Grusalvul

Active

Salvia x sylvestris L. · Wood sage

André de Gruyter B.V.

3 records

Georgie Yellow

Active

Diplacus aurantiacus (Curtis) Jeps. · Bush monkeyflower

Trees Scott C

2 records

Gold Nugget

Application submitted

Coreopsis L. · Tickseed

Korlipara Harini|Canby, OR, US

2 records

EMPMIS03

Active

Miscanthus sinensis Andersson · Chinese silver grass

Piro Newplants B.V.

2 records

Elsie's Gold

Active

Hylotelephium spectabile (Boreau) H. Ohba · Ice plant

Robert Bett

2 records

ECH391

Active

Echinacea purpurea (L.) Moench · Purple coneflower

Holtmaat Henricus Maria Joseph

3 records

FLORACHYE1

Active

Achillea millefolium L. · Yarrow

Florensis B.V.

2 records

G2X88544VAR

Active

Diervilla x splendens (Carrière) G. Kirchn.

Richard A. Grazzini

2 records

Fire Dragon

Active

Miscanthus sinensis Andersson · Chinese silver grass

Menzel Klaus

2 records

Fire Glow

Active

Kniphofia Moench · Red hot poker

Janet N. Egger

2 records

EVF712

Active

Ricinus communis L. · Castor bean

Shai Leviatov

3 records

Evelyne

Active

Vinca minor L. · Lesser periwinkle

Hans Müller

2 records

Cleopatra

Active

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

ARIE BLOM

2 records

Creamsicle

Active

Kniphofia Moench · Red hot poker

Janet N. Egger

2 records

Elvira

Terminated

Kniphofia Moench · Red hot poker

PAUL STRINGER

2 records

ET RDB 02

Active

Rudbeckia L. · Coneflower

Eternal Plant Boijl B.V.

2 records

DWAgHyb21

Application submitted

Agapanthus L'Hér. · Lily of the Nile

DE WET PLANT BREEDERS (PTY) LTD

2 records

Duftkissen

Active

Thymus L. · Thyme

STINGLHAMMER JOSEF

2 records

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