对银杏进行人工辅助授粉,是获得银杏产量的重要手段之一。在实际生产中,如何把握银杏雄花的采集时间和雌花的成熟期,是能否取得最佳授粉效果的关键。 1.采集雄花的最佳时期 雄花的成熟期一般比雌花提前1～2天,花序呈青黄色为最佳采集期,此时花粉成熟,生命力最强。若花序为青绿色,花粉粒幼嫩,不具备生命力。若花序为黄色,花粉易自行脱落,不易采集且生命力下降。采集后的雄花放在阴晾干燥处,待花粉于 Ginkgo artificial assisted pollination, ginkgo yield is one of the important means. In actual production, how to grasp the ginkgo male flower collection time and female flower maturity, is the key to obtain the best pollination effect. 1. The best time to collect male flowers The male flower maturity is generally 1 to 2 days earlier than the female flowers, the inflorescence is the best yellow-green collection period, when the pollen is mature, the strongest vitality. If the inflorescence is turquoise, young pollen grains, do not have vitality. If the inflorescence is yellow, pollen easily fall off, not easy to collect and vitality decreased. Male flowers collected on the Yin dry air to be pollen