皖北地区引种栎树的不同播种育苗技术比较

Comparison of Different Seedling Techniques of Introduced Oaks in Northern Anhui Province

以美国红栎、猩红栎、娜塔栎、沼生栎和柳叶栎为试材,在皖北地区进行播种育苗试验,探索适合栎树播种育苗的最佳方式,为栎树在该地区引种推广提供技术参考.结果表明,采用林木育苗穴盘播种再移栽至容器袋中,用泥炭河沙配制基质,出苗率最高,苗期生长量最大,根系侧根数较多;沙池育苗初期生长量次之;苗圃地播生长量小,侧根数少.不同引种栎树种子的出苗率、苗期生长量存在显著差异,其中娜塔栎生长量较大,美国红栎和柳叶栎次之,猩红栎和沼生栎苗生长量较小.

Taking Quercus borealis, Quercus coccinea, Quercus nuttallii, Quercus palustris and VQuercus phellos as test materials, sowing and seedling raising experiments were carried out in the north of Anhui to find out about the best sowing and seedling raising mode suitable for oaks, and to provide technical reference for introduction and spread of oaks in this region. It finds that, for all treatment, the seedling emergence rate and growth at the seedling stage are found to be highest and the number of the lateral roots was large when the seedlings were first sowed in the plug trays and then transplanted into the container bag filled with the peat river sand;The growth of seedlings in sand pond was second, and seedling growth in nursery field was lowest and the number of lateral roots was small. The emergence rate and seedling growth of different introduced oak seeds are significantly different, among which the growth of Quercus nuttallii is largest, followed by Quercus borealis and Quercus phellos, while the growth of Quercus coccinea and Quercus palustris seedlings is smallest.