Selection and evaluation of Azospirillum brasilense strains growing at a sub-optimum temperature in rhizocoenosis with wheat
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu hodnotící studie, časopisecké články
PubMed
11830945
DOI
10.1007/bf02815622
Knihovny.cz E-zdroje
- MeSH
- Azospirillum brasilense růst a vývoj izolace a purifikace MeSH
- kořeny rostlin mikrobiologie MeSH
- kultivační média MeSH
- kyseliny indoloctové metabolismus MeSH
- nitrogenasa metabolismus MeSH
- pšenice růst a vývoj mikrobiologie MeSH
- půdní mikrobiologie MeSH
- regulátory růstu rostlin metabolismus MeSH
- siderofory metabolismus MeSH
- teplota MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- Názvy látek
- indoleacetic acid MeSH Prohlížeč
- kultivační média MeSH
- kyseliny indoloctové MeSH
- nitrogenasa MeSH
- regulátory růstu rostlin MeSH
- siderofory MeSH
Fourteen Azospirillum brasilense strains growing at a sub-optimum temperature were selected based on their ability to grow and carry out plant growth promoting activities at 22 degrees C. The strains were tested for their response to inoculation in wheat (two popular cultivars, HD2285 and WH547, under sterile conditions) crop using sterile and nonsterile rooting medium. Significant increase in plant growth parameters was observed; the overall response to inoculation was better in cultivar HD2285. Based on their performance under sterile conditions, 4 strains were selected and compared under nonsterile conditions with strain sensitive to a sub-optimum temperature in pots using wheat variety HD2285. The strains capable of growing at the sub-optimum temperature can colonize the wheat endorhizosphere efficiently and improve the plant growth and yield as compared to sensitive strain; a 25-27% increase in grain yield was found on inoculating two selected strains compared to NO3- control.
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