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刺楸是五加科刺楸属落叶乔木,其适应性很强,在我省分布较广。刺楸生长迅速,干形通直;木材硬度适中,质地细腻,花纹美观;材性收缩率小,不翘不裂易加工,是受人喜爱的家具用材。种子含油脂,可用制肥皂。叶及树皮含鞣质,可提取烤胶。树皮是中药材。 刺楸根插法育苗,具有变异性小、生长发育快、育苗成本低和操作技术简便的优点。 1.插穗的采集:早春,选择优良的幼龄树,在根周围挖取穗材,直径以0.5～1.5厘米为宜。穗材剪成5厘米长的根插穗,剪口要光滑,忌劈裂。插穗随采随插,如不能立即扦插时,可暂时贮藏起来。子一代的繁殖,可利用苗木出圃时修剪下来或起苗时断留在土壤中的根做插穗。
Catalpa bungei is five plus Prunella deciduous tree, its adaptability, widely distributed in our province. Katsura rapid growth, stem straight; wood moderate hardness, fine texture, beautiful patterns; material shrinkage rate is not Alice not cracking easy processing, is a favorite furniture timber. Seeds containing fat, available system soap. Leaf and bark containing tannin, can be extracted baking gum. Bark is a Chinese herbal medicine. Catalpa bungei plug seedling, with a small variation, rapid growth and development, breeding low cost and the advantages of simple operation techniques. 1. Cuttings collection: early spring, choose the best young trees, scoops harvested around the roots, the diameter of 0.5 to 1.5 cm is appropriate. Spike cut into 5 cm long cuttings, cut to be smooth, avoid splitting. Cuttings plucked with mining, if not immediately cuttings, can be temporarily stored up. Progeny breeding, seedlings can be used when nursery stock pruning down or cut off in the soil when the roots do cuttings.