半枫荷1年生实生苗苗高生长规律研究  

Study on the height growth law of 1-year-old seedlings of Semiliquidambar cathayensis

作　　者：李远章 欧斌[2] 崔子佳 韩璐 欧述荣 Li Yuanzhang;Ou Bin;Cui Zijia;Han Lu;Ou Shurong(Niuquanshan Forest Farm,Anyuan Jiangxi 342100,China;Jiangxi Vocational College of Environmental Engineering,Ganzhou Jiangxi 341000,China;Ganzhou Senyuan Science and Technology Seed Farm,Anyuan Jiangxi 342100,China)

机构地区：[1]安远县牛犬山林场,江西安远342100 [2]江西环境工程职业学院,江西赣州341000 [3]赣州市森源科技种苗场,江西安远342100

出　　处：《南方林业科学》2021年第6期28-31,共4页South China Forestry Science

基　　金：赣州市森源科技种苗场“省级杉木圆齿野鸦椿种质资源库项目”(项目编号:JXZYK〔2021〕011)。

摘　　要：本研究对12个不同优树家系半枫荷1年生实生苗苗高年生长规律进行比较分析,并采用Logistic方程拟合苗高生长过程及划分生长阶段。结果表明:12个不同家系半枫荷苗木苗高生长趋势基本保持一致,均在6-9月期间增长迅速,在这之后增长逐渐减缓甚至停止;半枫荷苗木苗高生长呈现出“慢-快-慢”的生长规律;Logistic方程拟合效果显著,拟合曲线与实测曲线吻合度高,可进行苗高生长量的预测;同时可把半枫荷苗木生长期划分为4个阶段,分别为:出苗期(3月13日-4月10日)、生长初期(4月11日-6月19日)、生长盛期(6月20日-8月23日)、生长后期(8月24日-12月18日);1年生半枫荷苗木苗高平均61.0 cm,当年苗即可出圃造林。This study analyzed and compared the growth patterns of 1-year-old seedlings and seedlings of 12 different excellent tree families of Semiliquidambar cathayensis,and used the Logistic equation to fit the growth process of seedling height and divide the growth stages.The results showed that the growth trend of the seedling height of S.cathayensis seedlings in 12 different families remained basically the same.They all grew rapidly during the period from June to September,after which the growth gradually slowed down or even stopped.The height growth of S.cathayensis seedlings showed a"slow-fast-slow"growth law.Logistic equation fitting effect is significant,the fitted curve is in good agreement with the measured curve,and the growth of seedling height can be predicted.At the same time,the growth period of the S.cathayensis seedling can be divided into 4 stages,and they were emergence period(March 13 to April 10),early growth period(April 11 to June 19),peak growth period(June 20 to August 23),late growth period(August 24 to December 18).The average height of 1-year-old S.cathayensis seedlings is 61.0 cm,and the seedlings can be planted out of the nursery that year.

关 键 词：半枫荷 家系 苗高生长 年生长规律 LOGISTIC方程 

分 类 号：S792.99[农业科学—林木遗传育种]