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.

Nevada

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

2 records

Red Pearl

Active

Vaccinium vitis-idaea L. · Lingonberry

5 records

Raadu

Active

Ribes aureum Pursh · Golden currant

3 records

Mulka

Active

Ribes rubrum L. · Redcurrant

4 records

P8888

Active

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

2 records

P7460

Active

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

2 records

Orthega KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

2 records

Pivdennyi

Application submitted

Hordeum vulgare L. · Barley

2 records

Mimi

Active

Prunus persica (L.) Batsch · Peach

3 records

Mihailis

Active

Prunus avium (L.) L. · Sweet cherry

3 records

Pinot Chardonnay

Active

Vitis vinifera L. · Common grape vine

2 records

Norma SC

Protection expired

Zea mays L. · Maize

2 records

PEREDOVIK

Active

Helianthus annuus L. · Sunflower

2 records

Marzuolo

Active

Triticum durum Desf. · Durum wheat

3 records

Nocellara del Belice

Active

Olea europaea L. · Olive

3 records

Mv 354

Active

Zea mays L. · Maize

2 records

Pallagi 7

Active

Nicotiana tabacum L. · Tobacco

2 records

Pallagi lapos

Protection expired

Brassica oleracea L. (White Cabbage Group) · White cabbage

2 records

Palmer

Terminated

Zea mays L. · Maize

2 records

Oscar

Terminated

Solanum melongena L. · Eggplant

2 records

P9300

Active

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

2 records

Olympic

Active

Pyrus pyrifolia (Burm. f.) Nakai · Japanese pear

3 records

Osenneje Polosatoje

Active

Malus domestica (Suckow) Borkh. · Apple

2 records

Louise Bonne d'Avranches

Active

Pyrus communis L. · European pear

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.