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.

KPCARN

Active

Anigozanthos Labill. · Kangaroo Paw

Growns Digby

5 records

Jewel of Desert Ruby

Active

Delosperma cooperi (Hook. f.) L. Bolus · Trailing ice plant

NISHIKAWA KOICHIRO

5 records

Jewel of Desert Moon Stone

Active

Delosperma cooperi (Hook. f.) L. Bolus · Trailing ice plant

NISHIKAWA KOICHIRO

5 records

GI 31817

Active

Prunus x schmittii Rehder

Sabine Franken-Bembenek

6 records

Fanfare

Active

Gaillardia x grandiflora hort. ex Van Houtte · Blanket flower

Richard Read

5 records

Dazzleberry

Active

Sedum L. · Ice Plant

Hansen Christopher M.

5 records

Bonscawi

Active

Scaevola aemula R. Br. · Fairy fan-flower

Bernuetz Andrew|Silverdale, AU

5 records

Angel of Desire

Active

Dianthus plumarius L. · Garden pink

Keith R.W. Hammett

5 records

DKC4238

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

AT IT SK UA

6 records

ES Tryo

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Euralis Semences

BE FR NL PL

5 records

Norico

Active

Zea mays L. · Maize

ROBERT TAUCHER

DE SK UA

7 records

Winx

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

FI LT

9 records

Fidoxxi

Active

Zea mays L. · Maize

RAGT 2n

PT RO UA

6 records

KWS Haldor

Withdrawn

Secale cereale L. · Rye

KWS Lochow

AT DE DK EE PL

5 records