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.
Brassica napus var. napus · Rapeseed
Syngenta Crop Protection AG, CH
Daucus carota L. · Carrot
MORAVOSEED
Medicago sativa L. · Alfalfa
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Medicago sativa L. · Alfalfa
GIE GRASS (FR)
Beta vulgaris Garden Beet Group · Garden beet
Rijk Zwaan Budapest, H
Rubus L. subg. Rubus · Blackberry
Jennings, Derek L.|Dundee, Scotland
Zea mays L. · Maize
ROBERT TAUCHER
x Festulolium Aschers. et Graebn. · Festulolium
SLECHTITELSKA STANICE HLADKE' ZIVOTICE S.R.O.
Medicago sativa L. nothosubsp. varia (Martyn) Arcang. · Bastard Medic
G.I.E. GRASS
Helianthus annuus L. · Sunflower
Limagrain Europe, FR
Sorghum bicolor (L.) Moench · Sorghum
KWS, D
Sorghum bicolor (L.) Moench · Sorghum
KWS, D
Glycine max (L.) Merr. · Soybean
CEROM
Phleum pratense L. · Timothy grass
KASZUBA| Jan Wojciech Kaszuba / KASZUBA IRENA| Irena Kaszuba c/o IHAR / OSTROWSKA| Anna Ostrowska
Medicago sativa L. · Alfalfa
SAATBAU LINZ EGEN
Medicago sativa L. · Alfalfa
Carlo Invernizzi
Zea mays L. · Maize
Monsanto Technology, USA
Sorghum bicolor (L.) Moench · Sorghum
Fazekas Miklos
Glycine max (L.) Merr. · Soybean
University of Minnesota (US)
Hordeum vulgare L. · Barley
VASILESCU LILIANAMIHAILESCU ALEXANDRINABUDE ALEXANDRU
Festuca rubra L. · Red fescue
Top Green (FR)
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Cucurbita pepo L. · Field pumpkin
MORAVOSEED