领春木1年生播种苗木生长规律的研究  

Study on Annual Growth Dynamics of One-year-old Seedings of Euptelea pleiosperma

作　　者：闫倩倩 郭星 侯亚莉 谢飞 杨帆 魏海龙 赵栋 YAN Qian-qian;GUO Xing;HOU Ya-li;XIE Fei;YANG Fan;WEI Hai-long;ZHAO Dong(Institute of forestry Sciences,Bailongjiang Forestry Management Bureau of Gansu Province,Lanzhou 730070;Gansu Bailongjiang Forest Ecological Station,Zhouqu 746300)

机构地区：[1]甘肃省白龙江林业管理局林业科学研究所,兰州730070 [2]甘肃白龙江森林生态系统国家定位观测研究站,舟曲746300

出　　处：《温带林业研究》2020年第3期50-54,共5页Journal of Temperate Forestry Research

基　　金：中央财政林业科技推广示范资金项目([2018]ZYTG11);甘肃省省级林业科技计划项目(2016kj059)。

摘　　要：【目的】探究领春木1年生播种苗的生长规律,为培育高质量的苗木提供依据。【方法】以领春木1年生播种苗为材料,通过调查领春木1年生苗高、地径和苗高、地径的生长量,采用Logistic曲线拟合生长过程,划分苗木苗高、地径的生长阶段。【结果】用Logistic方程拟合生长过程其回归性达到极显著水平,领春木1年生播种苗生长期可划分为出苗期、生长初期、生长盛期、生长后期4个时期,苗高生长盛期为6月25日至10月5日,占全年生长期的47.7%,完成了总生长量的65.37%;地径生长盛期为6月24日至10月12日,占全年生长期的51.4%,完成了地径总生长量的61.3%,苗高生长盛期比地径生长盛期提前一周结束。【结论】领春木1年生播种苗的生长过程遵循Logistic曲线规律,可在苗高、地径速生长期加强水、肥管理,以提高苗木质量。【Objective】The study investigated the growth of one-year-old seeding of Euptelea pleiosperma,to provide basis for cultivating high quality seedlings.【Method】Using one-year-old seedings of Euptelea pleiosperma as the material,the growth height and ground diameter of one-year-old seedings of Euptelea pleiosperma were investigated to analyze the growth rhythm,and the growth process was simulated by Logistic curve.The growth stages of seedling height and ground diameter were divided.【Result】the regression of simulating growth process by Logistic curve were very signifi cant.Combining the fi tted value and observing value,the whole growth period of Euptelea pleiosperma seedings could be divided into four stages:of the emergence stage,the young seeding stage,the fast-growing stage and the later-growth stage.The fast-growing stage of height is from June 25 to October 5,accounting for 47.7% of the the annual growth period,the whole growth is 65.37%;The fast-growing stage of ground diameter is from June 24 to October 12,accounting for 51.4% of the whole growth period,the whole growth is 61.3%.And the ending of the height fast-growing stage was about a week earlier than the ground diameter fastgrowing stage.【Conclusion】Annual growth of Euptelea pleiosperma seedlings follwed the Logistic curve.Water and fertilizer management can be strengthened in seedling height and ground diamete to improve seedling quality.

关 键 词：领春木 苗高 地径 年生长规律 LOGISTIC方程 

分 类 号：S792[农业科学—林木遗传育种]