文献类型：期刊文献

中文题名：土壤、光照和NAA对闽楠生长和植株构型的影响

英文题名：Effects of soil,light and NAA on the growth and configuration of Phoebe bournei

作者：王丽云[1] 喻龙华[1] 陈家堂[1] 厉月桥[1] 周幼成[1] 刘源博[1] 宋连生[1] 汪盛民[2]

第一作者：王丽云

机构：[1]中国林业科学研究院亚热带林业实验中心,江西分宜336600;[2]景德镇市枫树山林场,江西景德镇333000

年份：2025

卷号：45

期号：7

起止页码：23-31

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：;北大核心:【北大核心2023】；

基金：中央级公益性科研院所基本科研业务费专项(CAFYBB2020MB004);“十四五”国家重点研发计划专题(2022YFF1303003-02)。

语种：中文

中文关键词：闽楠;生长;构型;土壤类型;光照强度;萘乙酸

外文关键词：Phoebe bournei;growth;configuration;soil type;light intensity;NAA

分类号：S792.24

摘要：【目的】为促进闽楠幼苗个体生长和植株构型管理提供理论依据。【方法】以2年生闽楠为研究对象,采用3因素完全交互设计,分析土壤类型(S1和S2)、光照强度(25%、50%、75%和100%透光率)和萘乙酸NAA质量浓度(0、25、50和75 mg/L)及其交互作用对闽楠生长和构型的影响规律。【结果】1)土壤类型S2处理的闽楠苗高、地径增长速率、地上/地下、干、枝、叶的生物量、冠幅、分枝数、叶片数明显优于土壤类型S1处理。S1中光照强度和激素水平显著影响每一层干生物量、2/4枝生物量、2/4和3/4叶生物量、2/4和4/4分枝数、2/4叶片数。S2中光照强度和激素水平仅显著影响2/4、3/4叶生物量、4/4分枝数、3/4叶片数;2)在2种常见土壤类型中,闽楠幼苗均在适度光照强度50%或75%时表现最好,低光照或者高光照抑制了闽楠干、枝、叶生物量的积累和叶片数量。75%和100%光照强度处理的地上/地下生物量低于25%和50%光照强度处理;3)在同一土壤类型条件下,光照强度和NAA浓度对闽楠生长和构型的影响存在显著差异,但在同一光照强度下,仅NAA的影响差异不大;4)3种因素对闽楠生长和构型的影响中,最显著的是土壤类型,其次是光照及光照和土壤的交互效应,再次是激素、激素与土壤或光照的交互作用,最后是三者的交互作用。【结论】土壤类型S2处理的闽楠幼苗个体生长和植株构型明显优于土壤类型S1。S2中75%透光率+0 mg/L NAA处理的闽楠幼苗生长和构型整体优于其他处理,其中该处理在地径、3/4叶片数,2/4叶生物量表现最好。研究结果有助于筛选出闽楠幼苗适宜的关键栽培管理条件,为闽楠幼苗的经营管理提供科学依据。
【Objective】To provide theoretical basis for promoting individual growth and plant configuration of Phoebe bournei seedlings.【Method】Two-year-old P.bournei was selected as the research object,with the complete interaction design of three factors,to explore the effects of soil type(S1 and S2),light intensity(25%,50%,75%and 100%light transmittance),naphthylacetic acid concentration(0,25,50 and 75 mg/L)and their interactions on its growth and configuration.【Result】1)The height growth rate,ground diameter growth rate,the ratio of aboveground and underground biomass,stem biomass,branch biomass,leaf biomass,crown width,branch number,and leaf number of P.bournei seedlings treated with S2 were significantly better than those treated with S1.The light intensity and hormone levels in S1 significantly affected the biomass of each layer’s main stem,2/4 branch biomass,2/4 and 3/4 leaf biomass,2/4 and 4/4 branch number,and 2/4 leaf number.The light intensity and hormone levels in S2 only significantly affected 2/4 and 3/4 leaf biomass,4/4 branch number,and 3/4 leaf number;2)Among the two common soil types,P.bournei seedlings performed best under moderate light intensity of 50%or 75%.Low or high light intensity inhibited the accumulation of P.bournei stem biomass,branch biomass,leaf biomass,and leaf quantity.The ratio of aboveground and underground biomass under 75%and 100%light intensity treatments were lower than that under 25%and 50%light intensity treatments;3)Under the same soil type conditions,there were significant differences in the effects of light intensity and NAA concentration on the growth and configuration of P.bournei,but under the same light intensity,the effect of NAA alone was not significantly different;4)Among the three factors that had the most significant impact on the growth and configuration of P.bournei,soil type was the most significant,followed by light and its interaction with soil,hormones and their interaction with soil or light,and finally the interaction of the three factors.【Conclusion】The individual growth and plant configuration of P.bournei seedlings treated with soil S2 were significantly better than those treated with soil S1.The overall growth and configuration of P.bournei seedlings treated with 75%light transmittance and 0 mg/L NAA in S2 were superior to other treatments,with the best performance in ground diameter,3/4 leaf number,and 2/4 leaf biomass.The research results are helpful in screening the key and suitable cultivation conditions for P.bournei seedlings,thereby providing scientific basis for the management of P.bournei seedlings.