四倍体泡桐引种试验研究

Experimental Study on the Introduction of Tetraploid Paulownia

通过引进3个四倍体泡桐新品种无性系,采用随机区组的方法,营造比较试验示范林,确定四倍体泡桐品种在本地区的适生状况和开发利用价值。结果表明,杂四泡桐在生长方面不具备明显优势,兰四泡桐和白四泡桐在生长、接干率及丛枝病抗性方面比本地二倍体品种具有较大优势,引种开发利用价值高。

3 new clone varieties of Tetraploid Paulownia were introduced in Fuyang City and comparative experiment demonstration plantations were established with randomized block design in order to study their adaptability and development and utilization value in the area. The results showed that the tetraploid hybrid of P. tomentosa × P. fortunei had no significant advantages in growth compared with local diploid varieties, while Tetraploid P. elongata and Tetraploid P. fortunei had great advantages in growth,regrowth-stem rate and resistance against witches-broom compared with local varieties and had high value for introduction and development and utilization.