Tutti
ActiveHelianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
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.
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Festuca rubra L. · Red fescue
MOMMERSTEEG INTERNATIONAL
Helianthus annuus L. · Sunflower
Shatsman Dmytro Oleksandrovych
Triticum aestivum L. · Bread wheat
Limagrain Europe, FR
Brassica napus var. napus · Rapeseed
Limagrain Europe, F
Trifolium pratense L. · Red clover
Rijksstation Voor Plantenveredeling (BE)/Barenbrug MAES (BE)
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH & Co.KG
Ribes nigrum L. · Blackcurrant
Research Institute of Pomology and Floriculture
Helianthus annuus L. · Sunflower
Syngenta Crop Protection,CH
x Festulolium Aschers. et Graebn. · Festulolium
Klaus K. Nielsen
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Lolium perenne L. · Perennial ryegrass
FEUERSTEIN ULF / STELLING DIETER
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Festuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
Poa pratensis L. · Kentucky bluegrass
WILLIAM MEYER
Festuca arundinacea Schreb. · Tall fescue
Barenbrug Tourmeur France
Poa pratensis L. · Kentucky bluegrass
Barenbrug Holland BV (NL)
Solanum tuberosum L. · Potato
Ytzen Pieter van der Werff
Festuca rubra L. · Red fescue
KWS SAAT SE & CO.KGAA
Solanum tuberosum L. · Potato
Maurice Schehr c/o HZPC Holland B.V.
Fragaria L. · Strawberry
VOTH, VICTOR - BRINGHURST, R.
Zamioculcas zamiifolia (Lodd.) Engl. · ZZ plant
Lee Hyuk Jin