Toscana CS
ActiveHelianthus annuus L. · Sunflower
Philippe Moreau
Variety traits
Vigor is the genetic ability of a variety for intensive vegetative biomass accumulation or an indicator of seed viability reflecting germination energy and the ability to overcome soil resistance.
Mentioned in descriptions 53 548 varieties reference book.
The vigor of a variety is manifested in the overall development power of aerial organs, including tillering intensity, shoot length, and the rate of leaf area formation. As a seed characteristic, this indicator reflects the ability of seedlings to develop successfully under actual field conditions by pushing through the soil layer, which distinguishes it from standard laboratory germination.
During variety testing, development intensity is assessed visually or through biometric indicators, such as plant height and crown diameter, in comparison with reference samples. Objectivity of the assessment is achieved only under identical agrotechnical conditions, as the manifestation of this trait depends directly on the availability of nutrients, moisture, temperature, and light to the plants.
Hereditary predisposition to vigor determines the suitability of a variety for specific technologies. Vigorous varieties have an advantage in competition with weeds, while less vigorous forms are preferable for intensive technologies that allow for the use of high-density planting schemes and facilitate mechanized harvesting. At the same time, the general state of the plants and the incidence of phytopathogens can significantly suppress the natural growth potential of any variety.
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
Philippe Moreau
Lupinus angustifolius L. · Narrow-leaf lupin
SAATZUCHT STEINACH GMBH and CO KG
Zea mays L. · Maize
Pioneer Overseas Corporation, USA
Glycine max (L.) Merr. · Soybean
Lidea France SAS, Lescar FR
Hordeum vulgare L. · Barley
W WEIBULL
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Glycine max (L.) Merr. · Soybean
RAGT 2N, France
Zea mays L. · Maize
TAUCHER ROBERT
Glycine max (L.) Merr. · Soybean
NAUKOWO BADAWCZE CENTRUM ROZWOJU SOI 'AGESOYA' SP. Z O.O
Brassica oleracea L. (White Cabbage Group) · White cabbage
TAKII EUROPE B V
Helianthus annuus L. · Sunflower
VANDERHAVE RESEARCH
Triticum aestivum L. · Bread wheat
CO.NA.SE soc Coop.Agr. (IT)/Apsov sementi S.p.A. (IT)
Cucurbita pepo L. · Field pumpkin
Rijk Zwaan, NL
Zea mays L. · Maize
MAS SEEDS
Helianthus annuus L. · Sunflower
Triticum aestivum L. · Bread wheat
Societa Produttori Sementi S.p.A
Daucus carota L. · Carrot
HM.CLAUSE
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Zea mays L. · Maize
Syngenta Crop Protection AG
Zea mays L. subsp. mays (Maize Group) · Maize
S.D.M.E. - SOCIETE DES MAIS EUROPEENS
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans Georg Lembke KG,DE
Allium cepa L. var. cepa · Onion
Bejo Zaden BV (NL)
Brassica napus L. · Rapeseed
NICKERSON INTERNATIONAL RESEARCH SNC
Zea mays L. · Maize
Roelf Suk