Variety traits
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.
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.
Rubus L. subg. Rubus · Blackberry
THOMPSON ELLEN / CLARK JOHN REUBEN / AGUAS-ALVARADO MARIO
Triticum aestivum L. · Bread wheat
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
Tuson Jean-Mark
Helianthus annuus L. · Sunflower
Zhoel` Meun`er
Prunus persica (L.) Batsch · Peach
Zarger Genectics
Solanum tuberosum L. · Potato
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Helianthus annuus L. · Sunflower
Limagrain Verneuil Holding (FR)
Zea mays L. · Maize
Pioneer Overseas Corporation, USA
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
Sadik El Sayed
Cucurbita pepo L. · Field pumpkin
Mazeriev Iiap (Mazerreeuw Jaap)
Helianthus annuus L. · Sunflower
Revol Benoit
Helianthus annuus L. · Sunflower
Maisadour Semences, F
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLDING S.A.
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
Remy Rouane
Zea mays L. · Maize
Philippe Flammant
Zea mays L. · Maize
Susanne Groh
Zea mays L. · Maize
Steven King
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Prunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Poa pratensis L. · Kentucky bluegrass
JACKLIN SEED
Poa pratensis L. · Kentucky bluegrass
Rutgers, the State University of New Jersey and Mountain View Seeds, Ltd.