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.
Malus domestica (Suckow) Borkh. · Apple
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Rosa L. · Rose
Dickson Nurseries Ltd
Olea europaea L. · Olive
Professor Giuseppe Fontanazza, Instituto Di Richereche Sulla Olivicoltura, Consiglio Nazionale Delle Richerche
Fragaria L. · Strawberry
LEIS, Michelangelo, IT / MARTINELLI, Alessio, IT / CASTAGNOLI, Gianfranco, IT
Malus domestica (Suckow) Borkh. · Apple
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Lactuca sativa L. · Lettuce
Syngenta Crop Protection AG
Solanum lycopersicum L. var. lycopersicum · Tomato
HM CLAUSE, FR
Daucus carota L. · Carrot
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Trifolium repens L. · White clover
Cal/West Seeds (US)
Triticum durum Desf. · Durum wheat
PRO.SE.ME S.R.L.
Agrostis stolonifera L. · Creeping bentgrass
Texas Agricultural Experiment Station
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Trifolium pratense L. · Red clover
FAL Station de Recherche Agronomique Federale (CH)
Capsicum annuum L. · Bell pepper
Seminis Vegetable Seeds
Cucurbita maxima Duchesne · Giant pumpkin
TAKII & CO LTD
Lolium perenne L. · Perennial ryegrass
PICKSEED
Prunus persica (L.) Batsch · Peach
Maillard Arsene / Maillard Laurence
Malus domestica (Suckow) Borkh. · Apple
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Cucumis sativus L. · Cucumber
Enza Zaden Beheer B.V.
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Sakata Seed Corporation
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Lolium perenne L. · Perennial ryegrass
SAATZUCHT STEINACH GMBH and CO KG