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树木种实采回后,种子被包在果鳞、荚皮之中,含水量较高,不适宜贮藏。经调制后,才能获得纯净、干爽的种子。柞树的种实橡子含水量较高,在阳光下曝晒容易失去生活力。采种后要立刻进行水选,除去蛀粒,然后摊于阴凉通风处阴干,厚度不超过20～25厘米。阴干时要经常翻动,阴干后即可贮藏。刺槐的荚果含水量较低,采收后可在场院曝晒,每天翻动2～3次,待荚果开裂后用木棒敲打,种子即可脱出。然后再经风选或水选,得到纯净种子。
After the tree species are recovered, the seeds are wrapped in the fruit scales and the pod skin, which have high water content and are not suitable for storage. After modulation, to get pure, dry seeds. Oak species of high acacia moisture content, exposure to sunlight in the easy to lose vitality. Seeding immediately after the water election, remove borers, and then stand in a cool and ventilated place dry, the thickness of not more than 20 to 25 cm. When dry to flip often, after drying can be stored. Robinia pseudoacacia pod lower water content, after harvest can be exposed in the yard, turn 2 or 3 times a day, until the pod cracked with a wooden stick beat, the seed can be prolapsed. Then by the wind or water election, get pure seeds.