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

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.

Olivia

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

SEITZER| Dr. Josef Franz Seitzer in Fa. KWS SAAT AG / JANSEN| Dr. Rudolf Jansen in Fa. KWS SAAT AG / DIENER| Dr. Guenter Diener

BE DE DK FR NL PL

9 records

Clavier CL

Active

Brassica napus L. · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

BG EE HU LT RO SK +1

8 records

Rufilla

Active

Festuca rubra L. · Red fescue

Feldsaaten Freudenberger Gmbh & Co (DE)

CZ DE HR SK UA

8 records

Albatros

Active

Brassica napus L. · Rapeseed

Thierry Ronsin

AT BG HU RO SK UA

7 records

Sanbro

Active

Helianthus annuus L. · Sunflower

Syngenta Seeds S.A.

AT DE ES FR IT

13 records

Aurelia

Active

Brassica napus L. · Rapeseed

Reinhard Hemker

AT HU LT RO SK UA

9 records

PR39B76

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

AT IT RO SI UA

10 records

Ontario

Active

Brassica napus var. napus · Rapeseed

Nickerson Seeds Ltd (GB)

CZ DE FR HR PL

11 records

P9400

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

AT HU IT SK UA

11 records

Karat

Active

Brassica napus var. napus · Rapeseed

SVALOF AB

DE DK ES SE UA

10 records

Aranda

Protection expired

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

BG FR HU IT SK

10 records

Tiben

Active

Ribes nigrum L. · Blackcurrant

Research Institute of Pomology and Floriculture

CZ PL SK UA

15 records

SUMMER_RED

Active

Malus domestica (Suckow) Borkh. · Apple

HU NL PL SI

16 records

Tempo

Active

Brassica napus var. napus · Rapeseed

Serasem, FR

DE DK FR PL

11 records

SY Scorpius

Active

Zea mays L. · Maize

Syngenta Participations,CH

AT HU IT UA

10 records

SY Daxton

Active

Helianthus annuus L. · Sunflower

Syngenta Participations AG| CH

FR IT PT UA

10 records

RGT Sigma

Active

Glycine max (L.) Merr. · Soybean

RAGT 2N S.A.S

AT DE FR UA

11 records

Sureli

Active

Helianthus annuus L. · Sunflower

Syngenta Participations,CH

AT IT SK UA

10 records

P9415

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.

AT HU IT UA

12 records

NS 444 Ultra

Active

Zea mays L. · Maize

Purar Bozana, Jockovic Dorde, Bekavac Goran,

BG IT SI UA

13 records

NK Alego

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection AG, CH

BG HU SK UA

8 records

P9944

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

AT HU IT UA

11 records

Matthus

Active

Triticum aestivum L. · Bread wheat

STRUBE GMBH&CO.KG

HU LT UA

8 records

KWS Mondeo

Active

Helianthus annuus L. · Sunflower

SYNGENTA FRANCE S.A.S.

HR IT PT UA

9 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.