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.
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Dactylis glomerata L. · Cocksfoot
GIE GRASS (FR)
Solanum tuberosum L. · Potato
Selectiebedrijf Kooi B.V./Fobek B.V./P.K. Rispens
Festuca arundinacea Schreb. · Tall fescue
DLF Seeds A-S, DK
Berberis thunbergii DC. · Japanese barberry
Dariusz Kapias
Delosperma nubigenum (Schltr.) L. Bolus · Hardy yellow ice plant
Koichiro Nishikawa
Festuca rubra L. · Red fescue
Poznanska Hodowla Roslin Sp. z o.o
Festuca arundinacea Schreb. · Tall fescue
RUTGERS UNIVERSITY OF NEW JERSEY
Helianthus annuus L. · Sunflower
Monsanto Technology LLC, US
Delosperma nubigenum (Schltr.) L. Bolus · Hardy yellow ice plant
Koichiro Nishikawa
Berberis L. · Barberry
Michal Andrusiv
Dianella prunina R. J. F. Hend.
Todd Layt
Malus domestica (Suckow) Borkh. · Apple
RESPUBLIKANSKOE NAUCHNO-PROIZVODSTVENNOE DOCHERNEE UNITARNOE PREDPRITIE «INSTITUT PLODOVODSTVA»
Dactylis glomerata L. · Cocksfoot
LOS PRADOS S.A.
Medicago sativa L. · Alfalfa
HAO-DEMETER-Fodder Crops and Pastures Institute
Triticum aestivum L. · Bread wheat
N. Tsenov, I. Stoeva, I. Panayotov, I. Todorov, K. Kostov, T. Petrova, I. Iliev, V. Kiryakova
Lupinus luteus L. · Yellow lupin
RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NAN BELARUSI PO ZEMLEDELIYU»
Glycine max (L.) Merr. · Soybean
AGENZIA REGIONALE PER LO SVILUPPO RURALE (ERSA)
Zea mays L. · Maize
Tereschuk Serhii Mykolaiovych, Kalynchuk Oleh Ivanovych, Chernobai Larysa Mykolaivna, Ivlieva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonid Vasyl`ovych,
Phaseolus coccineus L. · Runner bean
A L TOZER LTD
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht DE
x Triticosecale Wittm. ex A. Camus · Triticale
S. Tsvetkov, Tsv. Rachinska, A. Tsenov, V. Gotsova, I. Stoyanov, I. Iliev, R. Nadalenko
Agrostis canina L. · Velvet bent
Pickseed USA
Festuca pratensis Huds. · Meadow fescue
Poznanska Hodowla Roslin Sp. z o.o