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.

SU Stindard

Active

Triticum aestivum L. · Bread wheat

3 records

Santana CL

Protection expired

Helianthus annuus L. · Sunflower

3 records

PRO144SU

Active

Helianthus annuus L. · Sunflower

3 records

Sigoise

Active

Olea europaea L. · Olive

3 records

Savant

Active

Lolium perenne L. · Perennial ryegrass

3 records

Perciasacchi

Active

Triticum durum Desf. · Durum wheat

4 records

Protenza

Terminated

Festuca rubra L. · Red fescue

4 records

Pomposa

Active

Medicago sativa L. · Alfalfa

3 records

Rhino

Active

Festuca trachyphylla (Hack.) Hack. · Hard fescue

3 records

Namoi

Active

Vicia villosa Roth · Hairy vetch

4 records

Penna

Active

Festuca arundinacea Schreb. · Tall fescue

3 records

Măgurele 8

Active

Lotus corniculatus L. · Bird's-foot trefoil

3 records

Ollesia

Protection expired

Glycine max (L.) Merr. · Soybean

3 records

NS Sumo 2017

Active

Helianthus annuus L. · Sunflower

8 records

Lesan

Active

Secale cereale L. · Rye

3 records

KH Andrea

Protection expired

Hordeum vulgare L. · Barley

3 records

Livada 10

Active

Trifolium pratense L. · Red clover

3 records

Josef

Active

Poa pratensis L. · Kentucky bluegrass

3 records

Mandolina

Active

Hordeum vulgare L. · Barley

3 records

Marauder

Active

Poa pratensis L. · Kentucky bluegrass

3 records

Kaštánka

Active

Prunus avium (L.) L. · Sweet cherry

7 records

Joppa

Active

Festuca rubra L. · Red fescue

3 records

L. 107/66 Espanso

Active

Trifolium repens L. · White clover

3 records

Irisz

Active

Medicago sativa L. · Alfalfa

3 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.