Cultivation
Planting density is the number of plants per unit area, which determines the area of nutrition and the efficiency of resource utilization by the crop. This indicator directly influences yield formation and is an important tool for managing a variety's potential.
Mentioned in descriptions 5 959 varieties reference book.
Planting density is measured in thousands or millions of plants per hectare and determines the area of nutrition for each individual specimen. At an optimal value, plants utilize light, moisture, and nutrients most efficiently. In the case of high-density crops, intraspecific competition occurs, leading to stem elongation, weakening of the root system, and an increased risk of lodging, whereas in sparse crops, resources are not fully utilized and the area becomes overgrown with weeds.
The choice of density depends on the biological characteristics of the variety, including its developmental intensity and its ability to tiller or form side shoots. Different varieties respond differently to stress factors; therefore, recommendations for planting density should always comply with the characteristics of the specific hybrid or variety provided by the breeder.
The actual density in the field is determined not only by the seeding rate but also by field germination and the survival rate of plants at the time of harvest. The final indicator is adjusted depending on external conditions: with sufficient moisture and high soil fertility, higher rates are acceptable, whereas in arid conditions, density must be reduced to prevent moisture deficit in plants.
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.
Brassica oleracea L. (White Cabbage Group) · White cabbage
HM.CLAUSE
Helianthus annuus L. · Sunflower
Mr. Zhan-Liuk Madeuf
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Festuca rubra L. · Red fescue
Barenbrug Holland BV (NL)
Phleum pratense L. · Timothy grass
DLF, DK
Lolium perenne L. · Perennial ryegrass
Steve Reid
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds, NL
Cucumis melo L. · Melon
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Helianthus annuus L. · Sunflower
Ragt, F
Capsicum annuum L. · Bell pepper
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V, Rijk Zwaan Lettuce Breeding department
Solanum lycopersicum L. · Tomato
Paul Degreef
Helianthus annuus L. · Sunflower
MAY-AGRO SEED CORPORATION
Daucus carota L. · Carrot
HM.CLAUSE
Malus domestica (Suckow) Borkh. · Apple
Richard Callahan
Cucurbita moschata Duchesne · Butternut squash
Sakata Vegetables Europe S.A.S
Cynara cardunculus L. · Cardoon
NUNZA B.V.^^^Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Cannabis sativa L. · Hemp
FNPC, Federation Nationale des Producteurs de Chanvre
Brassica napus var. napus · Rapeseed
Patrice Jeanson
Zea mays L. · Maize
LEIPERT RAINER
Zea mays L. · Maize
LEIPERT RAINER
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
Hordeum vulgare L. · Barley
Rustica Prograin Genetique SA (FR)