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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.

Amazing Fun

Active

Kniphofia Moench · Red hot poker

Bouwmeester Vaste Plantenkwekerij

2 records

Cante Oran

Terminated

Pelargonium zonale (L.) L'Her. ex Aiton x P. tongaense Vorster

Mitchell Eu. Hanes Goldsmith Seeds Inc.

2 records

Balsumlora

Active

Agastache Clayt. ex Gronov. · Giant hyssop

Kievit Christa

2 records

Balangbeke

Terminated

Angelonia Bonpl. · Angelonia

SCOTT C TREES

2 records

BONSCA7288

Terminated

Scaevola aemula R. Br. · Fairy fan-flower

Andrew Bernuetz

2 records

Backdraft

Active

Kniphofia Moench · Red hot poker

Hans A. Hansen

2 records

Adokeep

Active

Buddleja L. · Buddleia

ELIZABETH KEEP

2 records

Alcorlipa

Active

Cordyline australis (G. Forst.) Endl. · Cabbage tree

Neil Alcock

2 records

AINOOMOI

Active

Chaenomeles speciosa (Sweet) Nakai · Chinese-quince

Shigehisa Ishii

2 records

Benetti

Terminated

Chrysanthemum pacificum Nakai · Pacific chrysanthemum

Andreas Niederländer

2 records

Asteria

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

Topcolor Breeding V.O.F.

2 records

Belsemmag2

Active

Sempervivum marmoreum x Sempervivum tectorum

Gielis Jef

2 records

Bayou Belle

Active

Ipomoea batatas (L.) Lam. · Sweet potato

Christopher A. Clark^^^Tara Smith^^^Arthur Q. Villordon^^^Don R. LaBonte

2 records

BELSEMGRE1

Active

Sempervivum arachnoideum L. · Cobweb houseleek

BELGICACTUS B.V.B.A.

2 records

Balsomcor

Active

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

Jianping Ren

2 records

Balneplud

Active

Nepeta L. · Catnip

Christa Kievit

2 records

Balchryite

Active

Buddleja L. · Buddleia

Trees Scott C

2 records

Balucyell

Active

Lantana camara L. · Lantana

Trees Scott C.|Shell Beach, CA

2 records

Balsomenco

Active

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

Jianping Ren

2 records

AF18

Active

Populus x canadensis Moench · Carolina poplar

Franco Alasia^^^Ornella Peretti^^^Omar Alasia

2 records

Balscoberr

Active

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

Jianping Ren

2 records

ABRELA

Application submitted

Elaeagnus x ebbingei Boom

ALBERT BRENELIERE

2 records

Baby Pete

Active

Agapanthus praecox subsp orientalis (F.M. Leight) F.M. Leight. · Common agapanthus

Francis Rupert Benson

2 records

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