我场自1992年引入荷兰鲁森红乔纳金无病毒苹果苗1000株,1993年已零星结果,1994年株株见果,株产达2.5kg。据荷兰专家鲁森先生介绍,红乔纳金苹果自花座果率较高,在荷兰从不进行人工授粉或蜂授粉,也不用配置授粉品种。1995年我们进行了红乔纳金自花授粉试验。 1.试验方法 在蓬莱市园艺场果树研究所 My field since 1992 the introduction of the Netherlands Luosen red Jonathan virus-free apple seedlings 1000, 1993 has been sporadic, in 1994 strains of plants see, strains up to 2.5kg. According to the Dutch expert Mr. Rosen introduced, red Jonathan gold apple self-inflorescence fruit rate is higher, in the Netherlands has never been artificial pollination or bee pollination, do not configure the pollination varieties. In 1995 we conducted the red Jonathan self-pollination test. 1 test method in Penglai City Garden Institute of fruit trees