欢迎访问林草资源研究

Forest and Grassland Resources Research >

2023 , Vol. 0 >Issue 4: 43 - 52

DOI: https://doi.org/10.13466/j.cnki.lyzygl.2023.04.006

Scientific Research

Effects of Different Light Intensity on Physiological Characteristics of One-Year-Old Bruguiera gymnorhiza Seedlings

  • Fazhi FANG ,
  • Zhaojia LI ,
  • Mengwen ZHANG ,
  • Zhongqin WU ,
  • Huiying GUI
Expand
  • Hainan Academy of Forestry(Hainan Academy of Mangrove),Haikou,571100,China

Received date: 2023-06-26

  Revised date: 2023-07-28

  Online published: 2023-10-16

Fold

Abstract

This study was conducted to investigate the light adaptability of 1-year-old Bruguiera gymnorhiza(L.)Lam.seedlings.The seedlings of Bruguiera gymnorrhiza were treated by light intensity simulation control experiment.The indices of plant height,basal diameter,Chl(a+b)content,Pn,MDA content,PRO content and SOD activity were measured after 20%,40%,60%,80% and 100% light intensity treatments.The effects of light on Bruguiera gymnorrhiza seedlings were analyzed by correlation and principal component analysis.The results showed,1)60% light intensity environment of Bruguiera gymnorrhiza seedling height growth fastest,100% light intensity environment of Bruguiera gymnorrhiza seedling base diameter growth fastest.2)The total chlorophyll content decreased with the increase of light intensity,but the net photosynthetic rate increased first and then decreased with the increase of light intensity.There was no significant difference in total chlorophyll content and net photosynthetic rate between 60% light intensity and 80% and 100% light intensity.3)Under 60% light intensity environment,the malondialdehyde content and proline content of Bruguiera gymnorrhiza were significantly lower than those under 20% light intensity environment,but the superoxide dismutase activity was significantly higher than that under 20% light intensity environment.4)There was no significant difference in net photosynthetic rate,malondialdehyde content and proline content between 60% light intensity and 100% light intensity,but the activity of superoxide dismutase was significantly higher than that of 100% light intensity.5)Through correlation and principal component analysis,it was found that 60% light intensity environment was the best for the growth of Bruguiera gymnorrhiza seedlings.Therefore,the adaptability of 1-year-old seedlings to 60% light intensity was stronger than that of other light environments.The results showed that 100% light intensity had a certain light inhibition effect on 1 a Bruguiera gymnorrhiza seedlings,while 20% and 40% light intensity could not meet the needs of 1 a Bruguiera gymnorrhiza seedlings for light.The results provide a numerical reference for the appropriate shading treatment of Bruguiera gymnorrhiza seedlings in the process of ecological restoration.

Key words： Bruguiera gymnorhiza; light intensity; morphological indicators; physiological indicators; principal component analysis

Cite this article

Fazhi FANG , Zhaojia LI , Mengwen ZHANG , Zhongqin WU , Huiying GUI . Effects of Different Light Intensity on Physiological Characteristics of One-Year-Old Bruguiera gymnorhiza Seedlings[J]. Forest and Grassland Resources Research, 2023 , 0(4) : 43 -52 . DOI: 10.13466/j.cnki.lyzygl.2023.04.006

References

[1] 胡柔璇, 唐洪辉, 赵庆. 不同光照强度对银叶金合欢幼苗阶段生长的影响[J]. 林业与环境科学, 2019, 35(6):56-60.
[2] 林晓宇, 朱强根, 刘慧, 等. 光照对植物枝叶生长和生物量的影响研究进展[J]. 现代园艺, 2022, 45(2):1-4.
[3] 韦中绵, 覃德文, 吴敏, 等. 不同光照强度对火力楠幼苗生长及生理特性的影响[J]. 西部林业科学, 2018, 47(2):48-53.
[4] 林凡, 马松亚, 潘锋, 等. 不同光照强度对格木苗木生长和生理生化特性的影响[J]. 安徽农业科学, 2016, 44(8):170-173.
[5] 谭淑娟, 李婷, 余素睿, 等. 光照强度对8种红树植物幼苗生长和生物量分配的影响[J]. 生态科学, 2020, 39(3):139-146.
[6] 姜仲茂, 管伟, 丁功桃, 等. 不同光照和淹浸程度对木榄幼苗生长的综合效应[J]. 生态环境学报, 2018, 27(10):1883-1889.
[7] 刘从, 田甜, 李珊, 等. 中国木本植物幼苗生长对光照强度的响应[J]. 生态学报, 2018, 38(2):518-527.
[8] 黄丽, 王德炉, 谭芳林, 等. 4种红树净光合速率对光和CO2浓度的响应特征[J]. 防护林科技, 2013, 120(9):1-3.
[9] 朱可峰, 廖宝文, 章家恩. 广州市南沙红树植物无瓣海桑、木榄人工林生物量的研究[J]. 林业科学研究, 2011, 24(4):531-536.
[10] 吴中华, 赵昊阳, 曾思洁, 等. 不同种源地木榄光合作用对低温寒害的响应[J]. 林业科学研究, 2023, 36(2):195-202.
[11] 刘睿, 孙伟, 巢牡香, 等. 盐胁迫下木榄幼苗叶片的解剖学变化[J]. 热带亚热带植物学报, 2009, 17(2):169-175.
[12] Gilman E, Ellison J, Duke N C, et al. Threats to mangroves from climate change and adaptation options:A review[J]. Aquatic Botany, 2008, 89(2):237-250.
[13] Parida A K, Jha B. Salt tolerance mechanisms in mangroves:A review[J]. Trees, 2010, 249(2):199-217.
[14] 陈鹭真, 王文卿, 林鹏. 潮汐淹水时间对秋茄幼苗生长的影响[J]. 海洋学报, 2005, 27(2):141-147.
[15] 赖廷和, 何斌源. 木榄幼苗对淹水胁迫的生长和生理反应[J]. 生态学杂志, 2007, 166(5):650-656.
[16] 王学奎. 植物生理生化实验原理和技术[M]. 2版, 北京: 高等教育出版社, 2006:278-279.
[17] Way D A, Pearcy R W. Sunflecks in trees and forests:From photosynthetic physiology to global change biology[J]. Tree Physiology, 2012, 32(9):1066-1081.
[18] Santiago L S, Lau T S, Melcher P J, et al. Morphological and physiological responses of Hawaiian Hibiscus tiliaceus populations to light and salinity[J]. International Journal of Plant Sciences, 2000, 161(1):99-106.
[19] 刁俊明, 彭逸生, 郑明轩, 等. 红树植物对低光照水平的生长及生理生态响应研究进展[J]. 嘉应学院学报, 2009, 27(3):69-74.
[20] 张宗芳, 徐将, 师小军. 不同光照强度对新疆野苹果种子萌发和幼苗生长的影响[J]. 新疆农业大学学报, 2021, 44(6):401-406.
[21] 张兰, 王静, 张金峰, 等. 辽东栎幼苗生长和生理特性对光照强度的响应[J]. 中南林业科技大学学报, 2021, 41(11):73-81.
[22] 唐相红. 红厚壳苗木对不同遮阴变化与施肥处理的生长及生理响应[D]. 南宁: 广西大学, 2018.
[23] 宋雪莲, 王志伟, 张文, 等. 冷杉叶片氮含量高光谱反演技术研究[J]. 草原与草坪, 2021, 41(6):139-147.
[24] 施守杰, 符云鹏, 杨双剑, 等. 遮阴对烤烟上部叶光合特性及品质的影响[J]. 山东农业科学, 2016, 48(2):24-28.
[25] 毛世忠, 赵博, 蒋小华, 等. 林下不同光照条件对走马胎苗木生长及光合特性的影响[J]. 西北林学院学报, 2016, 31(1):21-24.
[26] 姜瑞芳, 刘艳红. 光照对珙桐幼苗光合与生长特性的影响[J]. 生态科学, 2017, 36(5):114-120.
[27] 李端, 司建华, 李继彦, 等. 胡杨(Populus euphratica)对盐胁迫和干旱胁迫的生理响应特征[J]. 中国沙漠, 2023, 43(2):205-215.
[28] 陈卫东, 张玉霞, 丛百明, 等. 钾肥对紫花苜蓿根颈丙二醛、可溶性蛋白含量与抗氧化系统的影响[J]. 草地学报, 2021, 29(4):717-723.
[29] 李浩铭, 李青丰, 曲艳, 等. 不同植物生长调剂对八宝景天株型和生理特性的影响[J]. 草地学报, 2022, 30(12):3294-3301.
[30] 许中旗, 黄选瑞, 徐成立, 等. 光照条件对蒙古栎幼苗生长及形态特征的影响[J]. 生态学报, 2009, 29(3):1121-1128.
Options
Outlines

/

〈 〉