The traditional varieties have been replaced by modern varieties and hybrids that are better adapted to greenhouse culture and give a greater production.
According to Turchi the chief courgette varieties are the following:
"Negro Belleza’: Compact, open and dense habit. Capacity to produce up to 30 courgettes of a dark green colour.
"Verde Mata Compact’: Compact plant with scarce foliage. Green fruit with greyish tones.
"Blanquete F1 ": Compact plant of average habit. Pale green, almost white fruit.
"Diamant F1 ": Compact, erect and opened plant. Green fruit with pale green mottles.
"Prolific F1 ": Vigorous, compact and opened plant. Bright dark green fruit.
Another author, Maroto, classifies courgettes cultivars of a more or less cylindrical shape according to the colour of the rind:
Fruit of green rind: "Largo Verde de mata compacta, "Tarmino’ *, "Diamante’ *, "Princesa Negra’ *, "Black Beauty", "Black Jack" *, "Vert des Zenattas", "Zucchini Aristocratas" *, "Hyzni’, "Cheffini’ *, "Senator" *, "Elite’ *, "Tala’ *, "Majestic", "Servane’ *, "Maya’ *, "Algina’ *, "Calista’ *, "Dusk" *, "Pueblo’ *, "Presidente’ *, "Surco’ *, "Napolini’, "Belor" *, "Giada’ *, "Elira’ * "Samara’ *, "Tamino’ *, "Corsair" *, "Consul", ‘Prolific’ *, ‘Dinamic’*.
White fruit: "Blanco Precoz Medular", "Medio Largo Blanco aristado’, "Neu’, "Jedida’ *, "Opal" *.
Yellow fruit: "Dixie’ (somewhat twisted), "Seneca’, "Lemondrop", "Sudance’ * (somewhat twisted), "Goldbar" *, "Gold Slice’ *.
Among the squashed or "patisson" courgettes stand out:
"Scalopini’ *, "Benning"s Green Tint Scallop" (of yellowish colour when ripe), " White bush scallop" (of a whitish colour when ripe), " Hybrid Patty Green Tint" * (of a whitish colour when ripe).
(*) A great number of modern cultivars have been obtained by hybridisation.