Grand Slam
ActiveBrassica oleracea L. (White Cabbage Group) · White cabbage
Yusuke KATO, JP
Brassica oleracea L. (White Cabbage Group) White cabbage · Vegetables · bred by RIJK ZWAAN ZAADTEELT EN ZAADHANDEL BV, NL
also searched as: йетма
10 August 2026
The hybrid belongs to extra-early crops; the period from seedling transplanting to technical maturity is 45–50 days. The heads have a rounded or round-oval shape, a dense structure, and a light green color. The weight of the head is from 0.7 to 2 kg.
The plant possesses high resistance to Fusarium wilt (Foc:1) and exhibits resistance to bolting. The hybrid is intended for fresh market sale. The recommended planting density is 50–60 thousand plants per hectare.
7 jurisdictions
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 255123
№ KOW 00100
№ D-037
№ 4418
№ 4403
№ 31555
№ R W2312
№ 152037
№ 9931252
№ 0911497
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Brassica oleracea L. (White Cabbage Group) · White cabbage
Yusuke KATO, JP
Brassica oleracea L. (White Cabbage Group) · White cabbage
SYNGENTA SEEDS B.V , NL
Brassica oleracea L. (White Cabbage Group) · White cabbage
Bejo Zaden B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Brassica oleracea L. (White Cabbage Group) · White cabbage
Brassica oleracea L. (White Cabbage Group) · White cabbage
Nearby in the species list Izalco, Izidor, Jadwiga, Jaguar, Jason, Jasper, Jåtunsalgets sommerkål, JERSEY WAKEFIELD, Jersey Wakefield del, JERSEY WAKEFIELD 'PEWA', Jetma F1, Jetodor, Jetodor F1, Joanna, Jõgeva, Jolanta, Joplin, Joudi, Jove, Jowita