| Staphylea bumalda DC, belonging to Staphyleaceae, Staphylea L., is a rare woody oil tree species, which was also used as an edible and landscape tree in China. In order to develop new forest resources and provide the technological basis for effective cultivation and utilization of Staphylea bumalda DC, the studies on biological characteristics, fast propagation and utilization techniques were carried out for the three provenances of Anhui Shitai, Hubei Dawu and Henan Tongbai. The following results were documented:1) The mean height and ground diameter of trees at the age of 5 years old were 162.5cm and 1.9cm in Henan Tongbai, respectively. Every cluster formed 47 main branches with 5—10 fruit branches every main branch. There were 468.6 inflorescences with a fruit percentage of 17.2%, and 0.4kg of air-dried seeds were harvested from each tree. As a result, the seed production per hectare was expected to be 1700kg at a spacing of 1.5m× 1.5m, approximately.2) The phenological periods for the three different provenances ranged from early March to late March for sprouting, from late March to early April for budding, from late March or early April to early May for blooming, from early May to mid May for fruiting, from early or mid August to late September for fructescence, from mid or late August to late September or early October for abscission, and from mid November to next March for dormancy. Regarding phenological periods of different provenances, they were 25 days earlier in Anhui Shitai than those in Hubei Dawu, and 15 days later than those in Henan Tongbai.3 ) The effects of different treatments on rooting were studied by orthogonal experiments taking hard-wood cuttings and green-wood cuttings as materials. The results showed: the combination of A4B1C2D3E4 or A4B4C2D3E4 were optimized for hard-wood cuttings. In a word, the cuttings were optimal in lower crown with two pairs of buds, treated by ABT1 or NAA in concentration of 100 ppm for 30 minutes and then cutted into compound... |
