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.

Principal II

Withdrawn

Lolium perenne L. · Perennial ryegrass

1 record

Quickstep

Protection expired

Mahonia Nutt.

1 record

Praga

Terminated

Triticum aestivum L. · Bread wheat

1 record

Pozsony

Active

Rosa L. · Rose

1 record

Posol myru

Terminated

Prunus persica (L.) Batsch · Peach

1 record

Polius

Application submitted

Solanum lycopersicum L. · Tomato

1 record

Primina

Protection expired

Rumex patientia L. · Patience dock

1 record

Pamid

Active

Vitis vinifera L. · Common grape vine

1 record

Poliska 96

Application submitted

Solanum tuberosum L. · Potato

1 record

Ołomuńcka LEG

Application submitted

Petroselinum crispum (Mill.) Nym. ex A.W. Hill var. tuberosum (Bernh.) Mart Crov. · Hamburg parsley

1 record

Prame

Active

Trifolium pratense x Trifolium medium

2 records

P9718Е

Active

Zea mays L. · Maize

1 record

Október 23 emléke

Active

Rosa L. · Rose

1 record

Piros chasselas Kt.15

Active

Vitis L. · Grapevine

1 record

OSTSSAT-DR BAUMANS

Withdrawn

Vicia villosa Roth · Hairy vetch

DSV DEUTSCHE SAATVEREDELUNG

1 record

Odessa

Protection expired

Dianthus caryophyllus L. · Carnation

1 record

PIL01

Withdrawn

Robinia pseudoacacia L. · Black locust

1 record

PERRUNO

Application submitted

Vitis vinifera L. · Common grape vine

1 record

Nizhyns`kyi mistsevyi

Active

Cucumis sativus L. · Cucumber

1 record

NS-H-27-RM

Terminated

Helianthus annuus L. · Sunflower

1 record

PALOMINO FINO

Active

Vitis vinifera L. · Common grape vine

1 record

P6

Active

Oryza sativa L. · Rice

1 record

MANDON

Terminated

Vitis vinifera L. · Common grape vine

1 record

Mamuntanas

Terminated

Medicago sativa L. subsp. sativa · Alfalfa

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.