| 盐碱胁迫和干旱胁迫对紫苏种子萌发及幼苗生长的影响 |
| |
| 引用本文： | 苏银玲,李易蓉,木万福,吕维梧,杨子祥.盐碱胁迫和干旱胁迫对紫苏种子萌发及幼苗生长的影响[J].蔬菜,2022(3):21-27. |
| |
| 作者姓名： | 苏银玲 李易蓉 木万福 吕维梧 杨子祥 |
| |
| 作者单位： | 云南省农业科学院热区生态农业研究所/元谋干热河谷植物园，云南 元谋 651300 |
| |
| 基金项目： | 国家特色油料产业技术体系（CARS-14-20190421）；乡村振兴科技专项（202004BK091535） |
| |
| 摘 要： | 通过研究盐碱胁迫和干旱胁迫对紫苏种子萌发及幼苗生长的影响,以期为抗性品种选育提供理论依据.采用培养皿滤纸培养法通过不同配比的NaCl、Na2SO4、NaHCO3和Na2CO3对紫苏种子进行盐碱胁迫模拟,不同浓度聚乙二醇和甘露醇进行干旱胁迫模拟,结果表明:紫苏种子的发芽率和发芽势均随盐胁迫和干旱胁迫程度增加而降低;3种盐...
|
| 关 键 词： | 盐碱胁迫 干旱胁迫 紫苏 种子 萌发 幼苗 |
Effects of Saline-alkali Stress and Drought Stress on Seed
Germination and Seedling Growth of Perilla frutescens (L.) Britt. |
| |
| SU Yinling,LI Yirong,MU Wanfu,Lü Weiwu,YANG Zixiang.Effects of Saline-alkali Stress and Drought Stress on Seed
Germination and Seedling Growth of Perilla frutescens (L.) Britt.[J].Vegetables,2022(3):21-27. |
| |
| Authors: | SU Yinling LI Yirong MU Wanfu Lü Weiwu YANG Zixiang |
| |
| Institution: | Institute of Tropical Eco-agriculture Sciences, Yunnan Academy of Agricultural Sciences / Yuanmou Dry-hot Valley
Botanical Garden, Yuanmou 651300, China) |
| |
| Abstract: | In order to provide a theoretical basis for the breeding of resistant cultivars,the effects of saline-alkali stress and drought stress on seed germination and seedlings growth of P.frutescens (L.) britt.were studied.The seeds of P.frutescens (L.) britt.were cultured by petri dish filter paper method and simulated by four kinds of salt (NaCl,Na2SO4,NaHCO3 and Na2CO3 in different proportions) as saline-alkali stress,and simulated by PEG and mannitol in different concentrations as drought stress.The results showed that the germination percentage and germination potential of P.frutescens (L.) britt.seeds decreased with the increase of salt stress and drought stress.The order of the three kinds of salt treatments to seed stress was alkaline mixed salt (molar concentration ratio of NaCl,Na2SO4,NaHCO3,Na2CO3 was 5︰23︰9︰3)>neutral mixed salt(molar concentration ratio of NaCl、Na2SO_(4 )was 1︰2)>neutral single salt(NaCl).The seed germination was delayed and inhibited by drought stress.The growth of P.frutescens (L.) seedlings were all inhibited by three kinds of saline-alkali stress and two kinds of drought stress.The higher the treatment concentration,the stronger the inhibition.In the process of P.frutescens (L.) britt.seedling,saline-alkali plots should be avoided and water should be added in time. |
| |
| Keywords: | Keywords: saline-alkali stress drought stress Perilla frutescens (L ) britt seed germination seedling |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《蔬菜》浏览原始摘要信息 |
| 点击此处可从《蔬菜》下载免费的PDF全文 |
|
