Growth difference of four Distylium buxifolium clone seedlings in different soil types

Abstract

Distylium buxifolium is an important native ornamental tree species used extensively in gardens. To choose the right D. buxifolium clones suitable for different soil conditions and to provide references for early promotion and application, this study used potted plants in a greenhouse with red soil, yellow soil, calcareous (lime) soil, and coastal solonchak soil. Four clones D1, D7, D13, D19 of annual nursery stock were used to determine seedling height, ground diameter, crown width, and new tips, and then the influence of different soils on seedling growth was studied. Results showed that seedling height, ground diameter, and crown breadth in red soil were significantly greater(P yellow soil > calcareous soil > coastal solonchak soil. Also, favorable growth of clones was in the order D7 > D13 > D1 > D19. Clone choices of D. buxifolium for soil types could be D1 or D19 for yellow soil, D7 or D13 or D19 for red soil, D7 or D13 for lime soil, and D1 or D7 for coastal solonchak soil.