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female grape varieties

In general, cultivated vines are homozygous (male and female flowers on the same plant), the Wild vines dioecious (separated on different plants). The cultured monoecious vine possesses hermaphrodite (Hermaphrodites), that is, it is the male and female sexual organs in one blossom united. The purely female wild vines have an important role in the development of varieties played. They were on one pollination and at best they were fertilized by another grape variety, which precluded inbreeding problems. When germinating a grape to a seedling is then through this natural crossing a new grape variety emerged. At a selfing (Self-fertilization) result from negative inbreeding effects mostly rather inferior offspring. Nature has been protected from bisexuality or self-sterility, as it were. For a fertilization with foreign genes leads to positive Heterosis effects (Changes to the parents) in the offspring.

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