两性花野生毛葡萄单株Y17的发现及选育初报

Finding and breeding of wild Vitis quinquangularis Rehd. Y17 with hermaphrodite flower

野生毛葡萄单株Y 17是项目组历经8年研究发现的世界上第1株原生种两性花株系,经从广西河池市引种到南宁试种,初步表明,Y 17植株长势中庸,扦插苗种后第3年开花株率达100%,结果枝率90.7%,结实系数2.47,二次花自花授粉坐果率17.8%,平均穗重182.9g,粒重1.48g,果穗大。在生产上可自花授粉结实,也可兼作授粉树,具有重要的科学研究和生产应用价值。

Through studying and observing for eight years, a single plant line of wild Vitis Quinquangularis Y17 is the first initial species strain with hermaphrodite flower found in the world. When Y17 was transplanted from Hechi to Nannig, it performed with common growth vigor, and the ratio of flowering plant was 100% for three years after planted with cutting seedlings. The fruiting branches ratio was 90.7 % with 2.47 fruiting index, the rate of fruiting of reflorescence self-pollination was 17.8o/00; the average weight of cluster was 182.9g with single fruit weight 1.48g and had large cluster. Y17 could be used for self-pollination and fruiting or pollination trees, and had an important value in scientific research and producing application.