盐分对黄河三角洲乡土植物种子及幼苗生长的影响OA
Effects of Salinity on Seed and Seedling Growth of Native Plants in the Yellow River Delta
为探讨盐分对黄河三角洲乡土植物种子萌发和原土植被恢复的影响,选取盐地碱蓬、田菁、中亚滨藜和地肤等4种乡土植物,设置0(ck)、0.1%、0.3%、0.5%、0.7%、0.9%共6个盐分浓度处理,测定种子发芽率、发芽指数、胚轴长度、恢复发芽率等指标,探究盐分对黄河三角洲乡土植物种子萌发的影响.结果表明,随着盐分浓度的升高,盐地碱蓬、田菁、中亚滨藜和地肤的发芽率、胚轴长度和发芽指数均呈先增加后降低的趋势.盐浓度为0.3%时,盐地碱蓬、田菁和地肤的发芽率和发芽指数最大.当盐浓度大于0.5%,田菁、中亚滨藜和地肤的发芽率显著降低,显著抑制发芽.对高于0.5%盐分处理的田菁和中亚滨藜种子进行恢复发芽试验,随原始盐浓度的增加,其恢复发芽率和胚轴长度均降低.
To investigate the effects of salinity on seed germination and in situ vegetation restoration of native plants in the Yellow River Delta,four native plant species(Suaeda salsa,Sesbania cannabina,Atriplex centralasiatica,and Kochia sco-paria)were selected.Six salinity concentrations(0(ck),0.1%,0.3%,0.5%,0.7%,and 0.9%)were set to determine seed germination percentage,germination index,hypocotyl length,and recovery germination percentage,aiming to explore the effects of salinity on seed germination of native plants in the Yellow River Delta.The results showed that with increasing salinity concentration,the germination percentage,hypocotyl length,and germination index of S.salsa,S.cannabina,A.centralasiatica,and K.scoparia first increased and then decreased.At a salinity concentration of 0.3%,the germination percentage and germination index of S.salsa,S.cannabina,and K.scoparia reached their maximum.When the salinity concentration exceeded 0.5%,the germination percentage of S.cannabina,A.centralasiatica,and K.scoparia decreased significantly,indicating marked inhibition of germination.Recovery germination tests were conducted on seeds of S.can-nabina and A.centralasiatica treated with salinity above 0.5%,and the results showed that both the recovery germination percentage and hypocotyl length decreased with increasing original salinity concentration.
熊颖;伍进;程仁涛;李仕辉;单永体;赵西梅;李雪婷;尹静
越秀交通基建有限公司,广州 510320||山东秦滨高速公路建设有限公司,山东 滨州 226600山东秦滨高速公路建设有限公司,山东 滨州 226600山东秦滨高速公路建设有限公司,山东 滨州 226600山东航空学院山东省黄河三角洲生态环境重点实验室,山东 滨州 256603中交第一公路勘察设计研究院有限公司,西安 710065||西安中交环境工程有限公司,西安 710065山东航空学院山东省黄河三角洲生态环境重点实验室,山东 滨州 256603山东航空学院山东省黄河三角洲生态环境重点实验室,山东 滨州 256603中交第一公路勘察设计研究院有限公司,西安 710065||西安中交环境工程有限公司,西安 710065
农业科技
黄河三角洲盐分胁迫乡土植物种子幼苗生长
Yellow River Deltasalinity stressnative plantsseedseeding growth
《耕作与栽培》 2026 (3)
31-36,6
山东秦滨高速公路建设有限公司科技研发项目(QB-2023-SG-03)黄河三角洲土地利用安全野外科学观测研究站开放基金资助项目(YWZ202205)山东省林草种质资源中心草本植物种质资源普查与收集项目(SDGP3700000000202302002674B-001)山东航空学院研究生创新基金项目(SHSYCX05)山东省大学生创新创业训练计划项目(S202510449032)
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