裂叶榆属落叶乔木,是我省优良的用材树种之一,木材用途广,经济价值高,扩大造林,十分必要。 1.种子催芽 裂叶榆种子5月末成熟,翅果为黄白色,要在成熟时采集,并搞好种子催芽。把采集来的新种子,用40℃温水浸种12小时,捞出后用0.5％高锰酸钾进行种子消毒,再混2—3倍的湿河沙,在室内通风处平摊在地上,每天翻动数次,催芽4—6天,有5—10％的种子微露白芽即可播种。 Split leaf Ulmus deciduous trees, is our province one of the excellent timber species, timber wide use, high economic value, expand afforestation, it is necessary. 1. Seed germination Cracking elm seeds mature at the end of 5, the yellow-green fruit, to be collected at maturity, and do a good job of seed germination. The collected new seeds, soaked with warm water at 40 ℃ for 12 hours, remove and 0.5% potassium permanganate seed disinfection, and then mixed 2-3 times the wet sand, in the indoor ventilation flat on the ground, every day Flipping several times, sprouting 4-6 days, 5-10% of the seed micro-white buds can be planted.