罗平县银杏人工授粉试验初报

以罗平县境内已栽培上百年的古银杏雄树和1999年引种的银杏品种大梅核雌树为试验对象,开展银杏雌雄树花成熟期观察和人工授粉试验。通过2004～2007年连续4年的观察,罗平县银杏雄花成熟时间为3月25日至4月1日,各年略有不同,可将雄花序成熟与雌花成熟视为同步。2007年配制含0.2%花粉和3.3%白糖的花粉液,采用混水喷雾法开展银杏人工授粉试验。试验结果,罗平县银杏人工授粉平均坐果率达94.5%,表明在罗平县开展银杏人工授粉的初步试验是成功的。

Preliminary Report on Experiment of Artificial Pollination of Ginkgo

Using the hundred years old male ginkgo biloba planted in 1999 as experimental objects, this trees planted in Luoping County and female Ginkgo article plans to conduct Ginkgo biloba mature flower observations and artificial pollination tests. Through a 4 year observation from 2004 to 2007, the Luoping County ginkgo male matures between March 25th and April 1st each year with slight differences. The male and female flowers matures around the same time. In 2007. A pollen liquid containing 0. 2% pol- len and 3 % sugar was prepared and mix sprayed to carry out artifiicial pollination of the Ginkgo Biloba. The test results showed that the artificial pollination of Ginkgo fruit had a fruit setting rate of 94. 5% on average, which showed that the artificial pollination carried out in Luoping County was a success.