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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.

LG 50689 SX

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG ES HU IT RO UA
11 records

Lg 33 50

Active

Zea mays L. · Maize

Limagrain Verneuil Holding, F

BG HU RO SK UA
14 records

P 63 LL 124

Active

Helianthus annuus L. · Sunflower

Pioneer Overseas Corporation US (USA)

AT FR HR UA
12 records

MAS 90 F

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

ES IT RO UA
10 records

MAS 96 P

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG ES IT UA
8 records

LG 5662

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

FR IT SK UA
10 records

LG 50514

Active

Helianthus annuus L. · Sunflower

Limagrain Europe S.A.S

ES FR IT UA
10 records

RW 666

Active

Helianthus annuus L. · Sunflower

NOVARTIS SEEDS

BG ES FR HU UA
9 records

PT 314

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

DE DK FR PL UA
11 records

PR 39 T 13

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

AT DE SI SK UA
10 records

P 7655

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DE DK IT UA
9 records

PT 271

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DE HR UA
12 records

MAS 34 B

Active

Zea mays L. · Maize

MAS SEEDS

HU IT SK UA
8 records

Franken neu

Active

Medicago sativa L. · Alfalfa

SCHMIDT-GAMBAZZA| Hedwig Schmidt-Gambazza

AT DE FR PL
11 records

M-7

Active

Malus Mill. · Apple

RUP «BRESTSKAYA OBLASTNAYA SELSKOXOZYAJSTVENNAYA OPYTNAYA STANCZIYA NAN BELARUSI»

ES PL SK
11 records

LG5671 CLP

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

IT SK UA
9 records

NK Brio

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

CZ HR HU
8 records

P 8025

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DE SI UA
9 records

P 7043

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DE SK UA
11 records

MAS 28 A

Active

Zea mays L. · Maize

MAS SEEDS

IT SK UA
10 records

Loch Ness

Active

Rubus L. · Blackberry

Scottish Crop Research Institute, GB

DE FR NL
9 records

SR 2100

Active

Poa pratensis L. · Kentucky bluegrass

SEED RESEARCH OF OREGON

DK HR IT
9 records

P 64 HH 106

Active

Helianthus annuus L. · Sunflower

Sadik El Sayed

ES PT UA
11 records

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