The results show that: C. ovata is difficult to be dried, its main drying defects are the honeycomb and the cross section deformation.
结果表明：梓木为难干树种，其主要干燥缺陷为内裂和截面变形；
2
To obtain chemical constituents from the fruit of Catalpa ovata G. Don, the methods of water extraction, ethanol extraction and petroleum ether extraction were used.