As a rule, cultivated grapevines are one-house (male and female flowers on the same plant) that Wild vines however, dioecious (separated on different plants). The cultivated one-house vine possesses hermaphrodite (Hermaphrodites), that is, they are the male and female sexual organs in one blossom united. The purely female wild grapes have an important role in the development of the varieties played. You were on one pollination instructed and at best they were fertilized by another grape variety, which excluded inbreeding problems. When a grape harvest germinates into one seedling is then through this natural crossing a new variety was created. At a selfing (Self-fertilization) result mostly from negative offspring effects. Nature has protected itself from it, so to speak, through dwelling or self-sterility. Because fertilization with foreign genes leads to positive ones Heterosis effects (Changes towards the parents) in the offspring.
Female grape varieties are in the breeding new varieties are very popular as mother varieties, since they do not have to be neutered and an unwanted one due to the missing male organ selfing (Self-fertilization) is excluded. Because of the required pollination however, they are unstable to yield and often tend to Verrieseln, An advantage are larger berries, which is why female varieties are often called table grapes be used. The fertilization is mainly carried out by wind from nearby vines with the pollen from hermaphrodite flowers. If necessary, vigorous flowering varieties are planted in the vineyard as external pollinators, which are in or next to the row. Relatively few vines are sufficient as a pollen supplier. The flowering time of the donor and recipient plants has to be about right (pollen is usually a little earlier ripe than the flower stems). Lots rootstocks are also purely female or male, because with them a fruit yield doesn't matter.
In the representational wine Glossary described purely female grape varieties Alba Imputotato. Angur Kalan. Ardonnet. Arna-Grna. Bagrina. Barry. Bermestia Bianca. Bicane. Black Morocco. Blanc d'Ambre. Blatina. Blue Augster. Bratkovina Crna. Brighton. Camaralet de Lasseube. Cavus. Cetinka. Claverie Coulard. Coarnă Neagra. Coarnă Rosie. Dattier Noir. Dišeca Ranina. Doux d'Henry. Dr. Deckerrebe. Duchess of Buccleugh. François Noir. Fredonia. Fry. grk. Hart Blue. To lift. Higgins. Hunt. jumbo. Katta Kurgan. Kefessiya. Kéknyelü. Kharistvala Meskhuri. Kober 5 BB. Kontegalo. Kossuth Lajos. Krkošija. Krona. Lambrusco di Sorbara. Lindley. Madeleine Angevine. Madeleine x Angevine 7672. Maratheftiko. Marufo. Moscatel Rosado. Munson. Negru virtos. ohanes. Ouliven. Palestina. Paugayen. Picolit. Plechistik. Pukhliakovsky. Querol. Rosenmuskateller (1), Sarba. Sary pandas. Black hay. Scuppernong. Severny. Seyanets Malengra. Solonis. St. Pepin. Skylopnichtis. Sysak. Tavkveri. Taylor. Tigvoasa. Tintora. Torrontés Mendocino. White Augster. Zarya Severa and Zimmettraube,