Is Catalpa bungeana valuable tree?

Catalpa bungeana is a rare tree species, and it is a poisonous plant included in China Botanical Atlas Database. Its toxicity is that mice are injected with chloroform and methanol extract from their skin, 1000mg/kg, which leads to decreased activity, drooping eyelids, weakness of limbs, disappearance of righting reflex, respiratory depression and death. A saponin isolated from heartwood has a strong termite killing effect. The trunk of Sorbus mandshurica is gray, long and vertical, with thick thorns. Jacaranda wood is hard and straight, and is used in building materials, furniture and railway sleepers.

cultivation techniques

The main propagation mode of Kalopanax septemlobus is sowing, picking after the fruit matures in autumn, taking out the seeds for sand storage, and outdoor border sowing in the following spring. In addition, root cutting can also be used for breeding.

In addition to seed reproduction, wild Kalopanax septemlobus mainly relies on underground transverse stems for reproduction. Artificial cultivation mostly adopts the methods of cutting, layering and seed propagation, but it is difficult to take root and master the required conditions, so seed propagation is not as good as it. The seed propagation method is simple and easy, and a large number of seedlings can be obtained in a short time.

Refer to the above content: Baidu Encyclopedia-Acacia