西南林业大学学报2024，Vol.44Issue(11)：37-46,10.DOI:10.11929/j.swfu.202401010
遮荫与氮添加对青冈栎幼苗生长与生理特性的影响
Effects of Shading and Nitrogen Addition on Growth and Physiological Characteristics of Cyclobalanopsis glauca Seedlings
摘要
Abstract
In order to explore the suitable light and nitrogen levels and their interaction effects for the growth of Cyclobalanopsis glauca seedlings,improve the utilization rate of nitrogen fertilizer,one-year-old C.glauca seedlings were taken as the research object and a two-factor pot experiment was set up with 4 light levels and 4 ni-trogen levels.The results showed that under the same light intensity,the seedling height,ground diameter,leaf area,activity of SOD,NR and GS of C.glauca seedlings increased first and then decreased with the increase of nitrogen.MDA content decreased first and then increased.Under the same nitrogen level,the seedling height,ground diameter,leaf area,activity of SOD,NR and GS of C.glauca seedlings increased first and then decreased with the decrease of light intensity.MDA content decreased first and then increased.There was a significant inter-action between different light and nitrogen levels.The maximum principal component comprehensive value of C.glauca seedlings is the treatment of 50％light intensity,1.2 g/plant of nitrogen.Under the condition,the growth of C.glauca seedlings was the best,and the growth in seedling height and ground diameter are 31.1 cm and 1.78 mm respectively.关键词
青冈栎/幼苗/光照/氮素/生长/生理特性Key words
Cyclobalanopsis glauca/seedling/light/nitrogen/growth/physiological characteristics分类
农业科技引用本文复制引用
郭淑芸,朱亚祥,李铁华..遮荫与氮添加对青冈栎幼苗生长与生理特性的影响[J].西南林业大学学报,2024,44(11):37-46,10.基金项目
国家重点研发计划项目(2021YFD2201304)资助. （2021YFD2201304）
