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
RAGT 2N S.A.S
Festuca arundinacea Schreb. · Tall fescue
DLF Trifolium A-S, DK
Helianthus annuus L. · Sunflower
Remy ROUANET
Avena strigosa Schreb. · Black oat
Jouffray-Drillaud SA (FR)
Zea mays L. · Maize
Pierre CAROLO
Triticum aestivum L. · Bread wheat
Verneuil Recherche SA (FR)
Helianthus annuus L. · Sunflower
PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA
Festuca rubra L. · Red fescue
Zelder BV (NL)
Salix alba L. · White willow
Jeno Neneth
Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum
LIDEA FRANCE SAS
Phleum pratense L. · Timothy grass
ILVO Plant
Gossypium hirsutum L. · Upland cotton
DELTA&PINE LAND HOLDING
Helianthus annuus L. · Sunflower
SEMILLAS BATLLE
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Zea mays L. · Maize
May Agro Seed Corp.(TR)
Triticum aestivum L. · Bread wheat
RAGT CZECH S.R.O.
Lolium multiflorum Lam. · Italian ryegrass
VICSEEDS
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Sakata Vegetables Europe S.A.S
Helianthus annuus L. · Sunflower
Jose Carlos Ramos Aguilar
x Festulolium Aschers. et Graebn. · Festulolium
DLF Seeds A/S
Helianthus annuus L. · Sunflower
Patrick Duhigg
Solanum tuberosum L. · Potato
AGR.INST.OAKPARK
Festuca arundinacea Schreb. · Tall fescue
DLF Trifolium A-S, DK
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK