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.
Helianthus annuus L. · Sunflower
Lidea France SAS, F
Zea mays L. · Maize
WOODSTOCK KFT
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds B.V.
Festuca arundinacea Schreb. · Tall fescue
Mountain View Seeds
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
P.DEGREEF
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Seminis Vegetable Seeds
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
NUNHEMS
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Hazera Seeds, NL
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Helianthus annuus L. · Sunflower
Yves BIOULAC
Brassica oleracea L. (White Cabbage Group) · White cabbage
Yusuke Kato
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds B.V.
Lolium perenne L. · Perennial ryegrass
SEMENCES DE FRANCE
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds, NL
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Remi Leviel
Beta vulgaris Garden Beet Group · Garden beet
Sakata Vegetables Europe, F
Brassica oleracea L. (White Cabbage Group) · White cabbage
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
VAN DER PLOEG SJAAK
Cucumis sativus L. · Cucumber
Paul Degreef
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Brassica oleracea L. (Broccoli Group) · Broccoli
Rijk Zwaan B.V. (NL)