香椿叶用蔬菜种子育苗及苗期生长规律研究  

Study on seed breeding and seed growth law of leaf vegetable of Toona sinensis

作　　者：李月凤 张宏伟 董卉卉 张英姿 LI Yue-feng;ZHANG Hong-wei;DONG Hui-hui;ZHANG Ying-zi(Forest Science Research Institute of Xinyang,Xinyang 464031,Henan,China)

机构地区：[1]信阳市林业科学研究所,河南信阳464031

出　　处：《湖北农业科学》2020年第14期121-124,共4页Hubei Agricultural Sciences

基　　金：国家林业局林业公益性行业科研专项(200904024);河南省科技攻关项目(162102110154)。

摘　　要：经香椿(Toona sinensis)叶用林一年生实生苗苗期生长试验分析,选用Logistic生长曲线方程拟合研究其苗期生长规律。按苗高和地径生长速率将其生长划分为出苗期、生长初期、生长盛期和生长后期4个阶段,香椿叶用林苗期生长呈“慢-快-慢”的生长规律。生长量集中在盛期阶段,苗高生长量占总生长量的70.48%,地径占78.05%。Based on analysis of annual seedling growth experiment of Toona sinensis leaf forest,the Logistic growth curve equation was used to analyze growth law at seedling stage.According to the growth rate of seedling height and ground diameter,the growth of Toona sinensis was divided into four different growth stages,emergence stage,early growth stage,peak growth stage and late growth stage.The results showed that the growth pattern of Toona sinensis leaf at seedling stage was“slow-fast-slow”.The growth was centered on the peak stage.The growth of seedling height accounted for 70.48% of the total growth and the ground diameter accounted for 78.05%.

关 键 词：香椿(Toona sinensis)叶用蔬菜 种子育苗 苗高 地径 

分 类 号：S644.4[农业科学—蔬菜学]