观光木实生苗培育技术及苗木质量分级指标研究  

Study on cultivation techniques and quality grading indexes for seedlings of Tsoongiodendron odorum

作　　者：欧斌[1] 彭丽[1] 廖彩霞[1] 欧述荣 

机构地区：[1]江西环境工程职业学院,江西赣州341000 [2]赣州市森源科技种苗场,江西安远342100

出　　处：《南方林业科学》2017年第6期29-32,共4页South China Forestry Science

基　　金：江西省赣州市科技项目"赣南退耕还林树种苗木质量地方标准制定"(项目编号:200304)

摘　　要：适时采种,沙藏处理种子,选择土壤较肥、空气湿度相对较高的育苗地培育苗木,加强幼苗的水肥管理是提高观光木实生苗苗木质量的关键技术。依据苗高和地径,用逐步聚类分析法进行观光木1年生实生苗苗木质量分级研究,为3级,即:Ⅰ级苗:D≥0.85 cm,H≥43 cm;Ⅱ级苗:0.85 cm>D≥0.70 cm,43 cm>H≥37 cm;Ⅲ级苗:D<0.70 cm,H<37 cm。该分级标准可供种苗生产单位参考。In order to cultivate high quality seedlings of Tsoongiodendron odorum, the seeds were collected in time, stored by sand,Selected viability with relatively high soil and relatively high humidity and at the young seedlings growth stage, water and fertilizater management were paid great attention. The seedling of heightand the basal diameter of one year old seedlings of T. odorum were used to be level standard. We used the cluster analysis to study that level with criteria of 3 levels. levelⅠ：D≥0.85 cm, H≥43 cm;level Ⅱ： 0.85 cmD≥ 0.70 cm,43 cmH≥37 cm;level Ⅲ：D0.70 cm,H37 cm. The standars were recomanded in department of seedling production.

关 键 词：观光木 苗木分级 逐步聚类分析 

分 类 号：S792.99[农业科学—林木遗传育种]