毛红椿播种苗苗期生长规律研究  

Research on the Growth Rhythm of Toona ciliata var.pubescens at Seedlings Stage

作　　者：黄石德[1] 蔡世锋 苏孙卿 林捷[1] 范辉华[1] 李建民[1] Huang Shide;Cai Shifeng;Su Sunqing;Lin Jie;Fan Huihua;Li Jianmin(Fujian Academy of Forestry,Fuzhou 350012,China;Stated-owned Forest Farm of Youxi County,Sanming 365100,China)

机构地区：[1]福建省林业科学研究院,福建福州350012 [2]尤溪县国有林场,福建三明365100

出　　处：《防护林科技》2023年第4期17-20,共4页Protection Forest Science and Technology

基　　金：福建省林业科研项目(闽林科便函〔2019〕16号);福建省属公益类项目(2020R1009007)。

摘　　要：为了解毛红椿播种苗苗期生长规律,收集了福建省国有来舟林业试验场15株毛红椿优树种子,开展了苗期苗高和地径定期观测,采用不同数学模型拟合苗高和地径生长方程,并优选出苗期生长理想的优树。结果表明:(1)毛红椿苗木苗高和地径速生期均出现在8、9和10月。(2)毛红椿苗期苗高和地径在生长过程中均表现为“S”形,Logistic方程拟合苗高和地径效果最为理想,苗高生长方程为y=97.99/1+e 3.920-0.038 t,地径生长方程为y=12.833/1+e 1.296-0.015 t。(3)所选育的优良单株1号、8号和14号1年生苗木生长良好,可为今后毛红椿林业生产提供良好种源。In order to understand the growth rhythm of Toona ciliata var.pubescens at seedling stage,fifteen seeds of superior trees of Toona ciliata var.pubescens were collected from State-owned Laizhou Forestry Experimental Site in Fujian Province,regular observation of seedlings height and ground diameter of Toona ciliata var.pubescens at seedling stage was carried out,different math models were adopted to fit equation of seedling height and ground diameter to select the superior trees of ideal growth at seedling stage.The results showed as the following three aspects.(1)The fast season of seedling height and ground diameter of Toona ciliata var.pubescens was in August,September and October.(2)The seedling height and ground diameter of Toona ciliata var.pubescens presented“S”curve at the seedling growth stage.The effect of Logistic Equation fitted the seedling height and ground diameter was the most ideal.The equations of seedling height and ground diameter were y=97.99/1+e 3.920-0.038t and y=12.833/1+e 1.296-0.015t,respectively.(3)The one-year seedlings of individual plants 1,8 and 14 selected from the superior trees grew well,which can provide the excellent seed provenances for forestry production of Toona ciliata var.pubescens in the future.

关 键 词：毛红椿 苗高 地径 生长节律 

分 类 号：S723.1[农业科学—林木遗传育种]