接种两种固氮菌增强小麦幼苗抗渗透胁迫及生长能力
刘华伟;林晓军;孙超;李强;杨呼;郭蔼光
【期刊名称】《植物生态学报》 【年(卷),期】2013(037)001
【摘要】Aims The seedling stage is the key stage of matter and energy accumulation in the wheat life cycle. Therefore, drought during the seedling stage affects population formation in late stages. In this study, wheat seedlings were inoculated with azotobacters Azorhizobium caulinodans 'ORS571' and Azospirillum brasilense 'Yu62'. Methods Wheat seedlings germination was screened in normal conditions and with PEG 6000 osmotic stress using seedlings inoculated with azotobacters. Root volume, relative water content (RWC), proline content and soluble protein content of seedling laminas were determined under PEG drought stress using seedlings inoculated with azotobacters on laminas.rnImportant findings The germination rate of wheat seedlings was significantly increased under drought stress when inoculated with azotobacters. Moreover, wheat seedlings inoculated with mixed azotobacters have more obvious growth promotion than when inoculated with a single azotobacter. The former laminas proline content, relative water content, proline content and soluble protein content had increased. The results showed that drought resistance of wheat seedlings was improved when inoculated with mixed
接种两种固氮菌增强小麦幼苗抗渗透胁迫及生长能力
