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. (Kohlrabi Group) · Kohlrabi
Rijk Zwaan Welver, D
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Higaki H.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
NUNHEMS BV, NL
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Nunhems, NL
Zea mays L. · Maize
LIMAGRAIN VERNEUIL HOLDING S.A.
Cichorium endivia L. · Endive
HM.Clause S.A.S.
Festuca arundinacea Schreb. · Tall fescue
RUTGERS UNIVERSITY OF NEW JERSEY
Lactuca sativa L. · Lettuce
Nunhems B.V.
Brassica oleracea L. (Broccoli Group) · Broccoli
Sakata Seed Corporation (SCC)
Capsicum annuum L. · Bell pepper
Sakata Seed Corporation, JP
Festuca arundinacea Schreb. · Tall fescue
COLUMBIA SEEDS LLC
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
SC HEKTAR SEEDS SRL, Romania
Poa pratensis L. · Kentucky bluegrass
The Scotts Company
Brassica oleracea L. (White Cabbage Group) · White cabbage
Hazera Seeds B.V.
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Bayer Holland B.V.
Phaseolus vulgaris L. · Common bean
Holland-Select Research B.V.
Medicago sativa L. · Alfalfa
AIMA
Hordeum vulgare L. · Barley
VASILESCU LILIANABUDE ALEXANDRU
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Cora Seeds SRL, I
Diospyros kaki L. f. · Persimmon
SOLAR ARMENGOL, Mercedes