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.
Sanvitalia Lam. · Creeping Zinnia
Hugo Dittmar Samen und Pflanzen
Euphorbia hypericifolia L. · Graceful sandmat
UWE LEINERT
Festuca arundinacea Schreb. · Tall fescue
BLUE MOON FARMS
Spinacia oleracea L. · Spinach
Syngenta Seeds B.V.
Festuca arundinacea Schreb. · Tall fescue
Lebanon Seaboard Corporation and Rutgers, The State University of New Jersey
Festuca arundinacea Schreb. · Tall fescue
SEED RESEARCH OF OREGON
Lolium perenne L. · Perennial ryegrass
Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey
Corylus avellana L. · Common hazel
Shawn A. Mehlenbacher, David C. Smith, Rebecca L. McCluskey
Onobrychis viciifolia Scop. · Common sainfoin
STATION FEDERALE DE CHANGINS (RAC)
Zea mays L. · Maize
Pioneer Overseas Corporation/ Pioneer Hi-Bred International Inc., USA
Rubus L. subg. Rubus · Blackberry
University of Arkansas, USA
Prunus dulcis (Mill.) D. A. Webb · Almond
Triticum aestivum L. · Bread wheat
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum tuberosum L. · Potato
Stephan Berger
Malus domestica (Suckow) Borkh. · Apple
Helianthus annuus L. · Sunflower
MAY AGRO SEED COPR.
Festuca arundinacea Schreb. · Tall fescue
CEBECO INTERNATIONAL SEEDS
Brassica napus var. napus · Rapeseed
Dirk Decherf
Festuca arundinacea Schreb. · Tall fescue
Grasslands Innovation Ltd
Triticum durum Desf. · Durum wheat
Uri Kushnir^^^Nashef Kamal^^^Avdat Nahum
Solanum tuberosum L. · Potato
Higgins Agriculture Ltd
Olea europaea L. · Olive
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING