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.

Lybid

Active

Solanum tuberosum L. · Potato

Haistruk, Hennadii Shkurko, Ihor

2 records

Maja

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

2 records

Libero

Active

Vitis L. · Grapevine

Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Ernst Rühl / Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Joachim Schmid

2 records

LHA452/66

Terminated

Helianthus annuus L. · Sunflower

LIMAGRAIN GENETICS S.A.

1 record

Lotero Natural

Withdrawn

Lotus corniculatus L. · Bird's-foot trefoil

Estero S.A.

1 record

M 9 EMLA ISK

Active

Malus Mill. · Apple

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

1 record

M95K11

Terminated

Helianthus annuus L. · Sunflower

Geoffrey Lloyd Tomas

2 records

Lawina

Withdrawn

Lonicera caerulea L. · Blue-berried honeysuckle

OGUP „Bakczarskoje”

1 record

LEJ44

Terminated

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

Maisadour Societe Cooperative Agricole (FR)

1 record

LMF47

Terminated

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

Maisadour Societe Cooperative Agricole (FR)

1 record

Lemon Ball

Withdrawn

Sedum L. · Ice Plant

ENGELS| Peter Engels

1 record

LC1093B

Terminated

Helianthus annuus L. · Sunflower

Research Institute for Cereals and Industrial Crops-Fundulea (RO)

1 record

Lassa

Active

Helianthus annuus L. · Sunflower

Kapustian Maryna Viktorivna, Kapustian Volodymyr Vasylovych,

2 records

Latte BMR

Withdrawn

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

DESERT SUN MARKETING COMPANY INC

1 record

Lasunia

Terminated

Ribes rubrum L. · Redcurrant

Kopan Volodymyr Pavlovych, Kopan` Kira Mykolaivna,

2 records

L332

Terminated

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

Limagrain Genetics Grandes Cultures SA (FR)

1 record

L305

Terminated

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

Limagrain Genetics Grandes Cultures SA (FR)

1 record

KXC1370

Active

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

1 record

KX0551

Terminated

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

1 record

Lana

Protection expired

Panicum miliaceum L. · Proso millet

Moshenko Mykola Mykolaiovych, Herasymenko Oleksandr Vasyl`ovych, Petrychenko Serhii Mykolaiovych, Shudria Petro Petrovych,

2 records

Ladyzhynka

Terminated

Triticum aestivum L. · Bread wheat

Artemchuk Iryna Petrivna, Oks`om Volodymyr Polikarpovych, Morhun Volodymyr Vasyl`ovych,

2 records

Kyivska zhovtohibrydna

Active

Medicago sativa L. nothosubsp. varia (Martyn) Arcang. · Bastard Medic

Sliusar Serhii Mykolaiovych, Ostapets Tamara Anatoliivna, Povydalo Mariia Vasylivna, Koriahin Oleksii Mykhailovych,

2 records

KX 6381

Withdrawn

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

KWS SAAT SE & CO.KGAA

1 record

LGR 34

Terminated

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

Maisadour Societe Cooperative Agricole (FR)

1 record

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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.