用种子繁殖的千年桐大部分是雌雄异株的。一般常见的雌雄同株的大多数是雌性占优势,所以往往结果不多。过去改造千年桐的办法,都是从雌株上采集芽片来接雄株,这样还要保留一部分雄株做授粉树。1969年,我们在新兴县发现一株千年桐每个花序中都有雌雄两种花,雄花先开,雌花后开,雌花座果后,还有雄花继续开放,而且结果性状是纵生的,每 Most of the millet trees that are bred with seeds are dioecious. Most common hermaphrodites are predominantly female, so often have few results. In the past to transform the Millennium Tong approach, are collected from the female plant buds to pick male plants, so also keep part of the male plant to do pollination tree. In 1969, we found in Xinxing County, a Milian Tong each male and female flowers in each inflorescence, male flowers first open, female flowers open, female flower fruit, there are male flowers continue to open, and the resulting traits are longitudinal, each