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.
Solanum tuberosum L. · Potato
Johannes Petrus Maria Muijsers
Solanum tuberosum L. · Potato
KWEEK-EN RESEARCHBEDRIJF AGRICO B.V., NL
Plantago lanceolata L. · Ribwort plantain
Reddie Grose LLP
Zea mays L. · Maize
Rustica Prograin Genetique (FR)
Hordeum vulgare L. · Barley
Nickerson International Research S.N.C.
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp z.o.o. (PL)
Brassica napus var. napus · Rapeseed
Syngenta Crop Protection AG, CH
Zea mays L. · Maize
Tom Kevern
Festuca rubra L. · Red fescue
DLF Trifolium A/S
Festuca rubra L. · Red fescue
Have B.V.
Lolium perenne L. · Perennial ryegrass
Zwaan&De Wiljes' Zaadt en Zaadh B.V.
Hordeum vulgare L. · Barley
Nordsaat Saatzuchtgesellschaft mbH
Solanum tuberosum L. · Potato
Kartoffelzucht Böhm GmbH & Co. KG
Solanum tuberosum L. · Potato
ZIMMERMANN WILLI
Solanum tuberosum L. · Potato
JANSEN A.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Bejo Zaden B.V.
Phacelia tanacetifolia Benth. · Lacy phacelia
PETERSEN| Asmus Soeren Petersen in Fa. P.H. Petersen Saatzucht Lundsgaard GmbH & Co KG
Beta vulgaris Fodder Beet Group · Mangelwurzel
Joordens Zaadhandel (NL)
x Festulolium Aschers. et Graebn. · Festulolium
DLF Seeds A/S, 4000 Roskilde
Helianthus annuus L. · Sunflower
Syngenta Crop Protection,CH
Triticum aestivum L. · Bread wheat
Volker Lein
Glycine max (L.) Merr. · Soybean
Saatzucht Donau, A
Solanum tuberosum L. · Potato
VEREDELINGSBEDRIJF D.B
Festuca ovina L. · Sheep's fescue
DLF-Trifolium (DK)