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
PIONEER OVERSEAS CORPORATION
Glycine max (L.) Merr. · Soybean
VLADAN PLASINICH, SRDJAN ANDJELOVICH
Helianthus annuus L. · Sunflower
Pioneer Overseas Cor, USA
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Festuca trachyphylla (Hack.) Hack. · Hard fescue
Zajac Performance Seeds (US)
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Festuca arundinacea Schreb. · Tall fescue
SIMPLOT TURF AND HORTICULTURE
Zea mays L. · Maize
Pioneer Overseas Corporation/ Pioneer Hi-Bred International Inc., USA
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Petr Klapste
Chrysanthemum L. · Chrysanthemum
VAN DER KNAAP IR. J.
Solanum tuberosum L. · Potato
J.M. Kannegieter, H.Kannegieter,
Daucus carota L. · Carrot
Semenarna Ljubljana, SI
Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass
Los Prados S.A., Firmat AR
Phaseolus vulgaris L. · Common bean
Medicago sativa L. · Alfalfa
Lietuvos agrarinių ir miškų mokslų centras
Zea mays L. · Maize
ZEAINVENT TRNAVA
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Prunus L. · Plum
Pisum sativum L. · Pea
Syngenta Crop Protection AG
Pisum sativum L. · Pea
Paul Degreef
Festuca arundinacea Schreb. · Tall fescue
Mountain View Seeds
Helianthus annuus L. · Sunflower
PANAM FRANCE SARL, FR
x Festulolium Aschers. et Graebn. · Festulolium
DLF Seeds A/S
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK