传粉滴,是裸子植物传粉授精时,雌球花珠心顶部细胞分泌出来的,它在雄球花开放散粉时期出现,有捕捉花粉的功能。裸露在胚珠顶端的小水滴通常夜间吐出,白天收回,如此反复约经历一周的时间。据对麻黄传粉滴的分析,它含氨基酸肽、苹果酸、柠檬酸、无机盐和糖等营养物质,其中蔗糖含量可高达25％。在自然状况下,传粉滴很难观察到。为了便于观察,我们在4月上旬,把具有雌球花而雄球花即将散粉的枝条采回室内,在室温10—18℃的条件下进行水培,每两天换一次水,换水时用利刀或修枝剪把枝条去掉约1厘米,以利于吸水。约经7—10天,可看到胚珠珠孔中分泌出的传粉滴。近几年,我们观察了杜松、侧 Pollinating drops, the gymnosperms pollination insemination, the top of the ball of pearl flower ball secreted by the cells, it appears in the male ball open loose powder period, the function of capturing pollen. Droplets exposed at the top of the ovule usually spit out during the night and are recovered during the day, so that the cycle of about one week is repeated. According to the analysis of ephedra pollination droplet, it contains amino acid peptide, malic acid, citric acid, inorganic salts and sugars and other nutrients, of which sucrose content can be as high as 25%. In natural conditions, pollination is difficult to observe. In order to facilitate the observation, we in early April, with the female flowers and male flowers is about loose powder branches back to the room, at room temperature 10-18 ℃ under the conditions of hydroponics, change the water every two days, changing the water Use a knife or pruning shears to remove about 1 cm of branches in order to facilitate water absorption. After about 7-10 days, you can see the pollen droplets secreted in the ovule beads. In recent years, we have observed juniper, side