معرفي ژنوتيپ هاي بيدانه بدست آمده از تلاقي برخي ارقام بيدانه و دانه دار انگور

Introduction of Seedless Genotypes Obtained from Some Seedless and Seeded Grape Cultivars Crosses

For a breeding of grape to obtain new superior raisin and table cultivars, seedless cultivars of Askary, Yaghooti, Bidane Sefid and Bidane Ghermez were selected as male parents, while seeded cultivars of Muscat of Hamburg, Ghezcl Uzum, Dizmary, Rajabi Sefid, Ali Baba, Alhaghi Ghermez, and Tabarzeh choscn as female parents. Out of 1400 progeny obtained from 26 different crosses, 381 of them, which produced fruits, were evaluated during the growing seasons of 2006 & 2007. For an evaluation of progenies, three fruit clusters were randomly harvested from each progeny. Five berries were randomly selected from each cluster and their traits registered. For stenospermic trait evaluation, 10 big berries were selected from each cluster. Progenies were divided into four groups of completely seedless, semi-seedless, semi-seeded and completely seeded, as according to seed trace or seed weight. Some of the seedless progenies carried desirable traits such as large and fleshy berries, early ripening, proper attachment of berries to the cluster along with low density of berries, so that they were superior as compared to other Iranian seedless cultivars. Among all progenies, the 121, B98,173, K67, L125, L127, S52, S55, K93, R84, R80, A! 19 and B96 genotypes stood in the seedless class. Also some such semi- seedless and completely seeded genotypes as B95, S26, J38, N81, L131 and N84 are of so desirable and noticeable traits as semi-seedlessness and big berry that they have to be given due consideration too.