不同基质对红海榄幼苗生长生理特性的影响  

Effects of Different Substrates on Growth and Physiological Characteristics of Rhizophora stylosa Seedlings

作　　者：贾湘璐 欧阳子龙 刘佳哲 樊东函 滕维超[2] 石景忠 刘秀[1] JIA Xianglu;OUYANG Zilong;LIU Jiazhe;FAN Donghan;TENG Weichao;SHI Jingzhong;LIU Xiu(Guangxi Forestry Research Institute,Nanning 530000;College of Forestry,Guangxi University,Nanning 530004;Forestry Institute of Qinzhou,Qinzhou,Guangxi 535000;Nanning Botanical Garden,Nanning 530004;Nanning Qingxiu Mountain Scenic Spots Tourism Development Co.,Ltd.,Nanning 530004)

机构地区：[1]广西壮族自治区林业科学研究院,南宁530000 [2]广西大学林学院,南宁530004 [3]钦州市林业科学研究所,广西钦州535000 [4]南宁植物园,南宁530004 [5]南宁青秀山风景名胜旅游开发有限责任公司,南宁530004

出　　处：《中国农学通报》2024年第8期21-29,共9页Chinese Agricultural Science Bulletin

基　　金：广西林业科技推广示范项目“北部湾主要红树林造林树种抗逆性选育研究”(桂科[2021]1号)。

摘　　要：本研究目的为筛选出适宜红海榄幼苗生长的基质,提高栽培效率和幼苗的环境适应能力。本研究设置沙、沙:泥(7:3)、沙:泥(3:7)、泥4种不同基质配比,测定红海榄幼苗在不同基质配比条件下的生长指标、生物量、根系形态指标及生理指标。结果表明,沙:泥(7:3)处理的红海榄幼苗具有较高的生长指标、根系指标、生物量、光合色素含量和活性氧清除能力,有利于生长发育。随着泥比例增加,红海榄幼苗各项生长生理指标均下降。沙的养分含量较泥低,生长后期应密切注重养分的需求程度,及时补充养分输入。主成分综合得分排序显示,沙:泥(7:3)基质处理是红海榄的最佳育苗基质。This study aims to select the suitable substrate for the growth of Rhizophora stylosa seedlings,improve the cultivation efficiency and environmental adaptability.In this study,four different substrate ratios of sand,sand:mud(7:3),sand:mud(3:7),and mud were set up to determine the growth indexes,biomass,root morphological indexes and physiological indexes of Rhizophora stylosa seedlings under different substrate ratios.The results showed that the seedlings treated with sand:mud(7:3)had higher growth indexes,root indexes,biomass,photosynthetic pigment content and active oxygen scavenging ability,which was conducive to growth and development.With the increase of mud proportion,all the growth physiological indexes of the Rhizophora stylosa seedlings decreased.The nutrient content of sand is lower than that of mud,so it is necessary to pay close attention to the nutrient requirement and supplement nutrient input in time.The composite scores of principal components showed that sand:mud(7:3)was the best seedling medium for Rhizophora stylosa.

关 键 词：红海榄 基质 生长 根系形态 生理指标 

分 类 号：S753.53[农业科学—森林经理学]