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
SYNGENTA SEEDS A.G.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Ger Beemsterboer
Festuca rubra L. · Red fescue
Jönsson Hans Arne
Phaseolus vulgaris L. · Common bean
KRAFFT A.
Chrysanthemum L. · Chrysanthemum
VAN DER JAGT MARTINUS
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Raphanus sativus L. var. sativus · Radish
SAATZUCHT QUEDLINBURG GMBH
Triticum aestivum L. · Bread wheat
S.I.S. SOCIETA' ITALIANA SEMENTI
Zea mays L. · Maize
Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.
Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass
Wisconsin Agr. Exp. Stat. (US)
Agrostis gigantea Roth · Black bent
Wojciech Joks c/o Hodowla Roslin Szelejewo
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V. (NL)
Brassica napus var. napus · Rapeseed
Phalaris arundinacea L. · Reed canary grass
Research Seeds Inc.
Zea mays L. · Maize
JOTSKOVICh BORHE
Lupinus albus L. · White lupin
BORBELY| Ferenc Borbely Forschungsinstitut des Unternehmens Vetoemag / BORBELY FERENCNE| Ferencne Borbely c/o Forschungsinstitut des Unternehmens Vetoemag
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Trifolium alexandrinum L. · Egyptian clover
Miatello Sementi s.n.c.
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Helianthus annuus L. · Sunflower
Trifolium repens L. · White clover
ILVO-PLANT 39