宜兴市引乐属种源和杂交松试验初报

A preliminary study on the introduction of American Oaks and hybrid Pinus taeda×P.rigida in Yixing Jiangsu China

于１９９９年３月在宜兴市林场建立美国栎属（包括柳叶栎５个种源、红栎２个种源），杂交松（杂种Ｆ１代，父本、母本）以及对对种青冈、麻栎、小叶栎和马尾松等共１４个处理的引种试验林。通过１ａ观测，其生长和保存率存在显著变异。（１）美国栎属生长变异极显著，树种间比较是柳叶栎〉红栎〉青冈。在柳叶栎中以９８１８号最大，９８２２号最小。红栎种源间无差异。造林成活率由于是采用容器苗造林，达９５．００％～１０．００％

A plantation of American Oaks and hybrid Pinus teada×P.rigida for species and provenance trial was established in March 1999 in Yixing Forest Farm(at 31°10′N,119°43′E.)Southern Jiangsu China.The study was conducted on the comparative performance of 7 provenances of American Oak species [5 Provenances of wellow Oak ( Quercus phellos )]and 2 provenances of Scarlet Oak( Q.coccinea )]and hybrid F 1( Pinus teada ×P.rigida) and male ( P.teada) ,female (P.rigida) .Trees were panted as 1 year old container seedlings in pits 30 cm in deep and 30 cm in diameter at spacing of 3 m between rows and 2 m between trees in a randomized complete block design with 4 replications.There were 14 plots in a replication and 24 trees per plot.The results of observation indicated that there were significant variations in performance of growth and survial among different species and provenances of American Oaks.The most fast growing provenance was Willow Oak No.9818 and the slow growing provenances were Scarlet Oak No.9820,No.9821 and Blue Japanese Oak( Cyclibaianosis giauca). The most adaptable was Wellow Oak No.9816 and Blue Japanese Oak.The performance of hybrid F 1 P.taeda×P.rigida was better than male( P.taeda) and female( P.rigida) .