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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.

Piilag B2

Active

Lagerstroemia L. · Crape Myrtle

Kardos Joshua H.

2 records

P1570y

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

2 records

POST301

Active

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

Henricus Maria Joseph Holtmaat

2 records

PEWZ0001

Terminated

Penstemon Schmidel. · Beard Tongue

Syngenta Crop Protection AG

2 records

Novcorcar

Active

Coreopsis verticillata L. · Whorled tickseed

MICHAEL S DOBRES

3 records

Pink Friesland

Active

Salvia x sylvestris L. · Wood sage

Kwekerij Kabbes V.O.F.

2 records

Plum Smokey

Application submitted

Verbascum L. · Mullein

Korlipara Harini|Canby, OR, US

2 records

Pink Cascade

Active

Buddleja davidii Franch. · Butterfly bush

Hansen Hans A

2 records

P2105y

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

Performer

Active

Gladiolus L. · Gladiolus

Coöperatieve Kwekersvereniging "For Ever" U.A.

2 records

Novanepjun

Active

Nepeta x faassenii Bergmans ex Stearn · Faassen's catnip

MICHAEL S DOBRES

2 records

Moerday

Active

Chrysanthemum pacificum Nakai · Pacific chrysanthemum

Moerselect B.V.

2 records

NOORTJJRAB

Active

Geranium cinereum Cav. · Grey cranesbill

Marco van Noort Breeding B.V.

2 records

New Blood

Active

Grevillea juniperina x Grevillea rhyolitica

Peter James Ollerenshaw

2 records

Minspot

Active

Hibiscus syriacus L. · Rose of Sharon

Hortival Diffusion S.A.S.

3 records

My Angel

Active

Clematis L. · Clematis

Wim Snoeijer

2 records

MVNG1811

Active

Geranium sanguineum L.

van Noort Marco

2 records

Mulberry Ruffles

Active

Lavandula stoechas L. · French lavender

Plant Growers Australia Pty Ltd

2 records

Paso Doble

Active

Cordyline Comm. ex Juss. · Palm lily

Peter John Fraser

2 records

Penny Lane

Active

Geranium L. · Crane's Bill

Carl Marius Lowe

2 records

MVNG1901

Active

Geranium sanguineum L.

van Noort Marco

2 records

Midnight Model

Application submitted

Salvia L. · Sage

Hans A. Hansen

2 records

MIYOROSCO

Active

Rhodanthemum hosmariense (Ball) B. H. Wilcox et al.

Miyoshi & Co.

2 records

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