Research Article
Characterization of Rhizobia Isolated from Tigray Soil and Assessment of Their Effect on Germination and Seedling Vigor of Wheat and Field Pea
Table 4
Confirmatory tests and plant growth-promoting traits of Rhizobia isolates.
| | Sampling site | Isolates | BTB | HAM | KLT | YEMACR | GPA | IAA | AMM | HCN | Antagonistic |
| | Shiraro | SH1 | Alkali producer | − | − | − | + | + | + | − | + | | SH2 | Alkali producer | − | − | − | + | + | + | − | + | | SH3 | Alkali producer | − | − | − | + | + | + | − | + | | SH4 | Alkali producer | − | − | − | + | + | + | − | + | | SH5 | Alkali producer | − | − | − | + | + | + | − | + |
| | Korem | KO1 | Alkali producer | − | − | − | + | + | + | − | + | | KO2 | Acid producer | − | − | − | + | + | + | − | + | | KO3 | Acid producer | − | − | − | + | + | + | − | + | | KO4 | Alkali producer | − | − | − | + | + | + | − | − | | KO5 | Acid producer | − | − | − | + | + | + | − | + | | KO6 | Alkali producer | − | − | − | + | + | + | − | + | | KO7 | Alkali producer | − | − | − | + | + | + | − | − | | KO8 | Acid producer | − | − | − | + | + | + | − | − |
| | Tsibet | TS1 | Alkali producer | − | − | − | + | + | + | − | + | | TS2 | Alkali producer | − | − | − | + | + | + | − | − | | TS3 | Alkali producer | − | − | − | + | + | + | − | + | | TS4 | Alkali producer | − | − | − | + | + | + | − | − |
| | Mekelle | ME1 | Acid producer | − | − | − | − | + | + | − | − | | ME2 | Acid producer | − | − | − | + | + | + | − | + | | ME3 | Acid producer | − | − | − | + | + | + | − | − | | ME4 | Acid producer | − | − | − | + | + | + | − | − | | ME5 | Alkali producer | − | − | − | + | + | + | − | + |
| | Tanqua Abergele | TA1 | Alkali producer | − | − | − | + | + | + | + | + | | TA2 | Alkali producer | − | − | − | + | + | + | + | + | | TA3 | Acid producer | − | − | − | + | + | + | − | − | | TA4 | Acid producer | − | − | − | + | + | + | − | − | | TA5 | Acid producer | − | − | − | + | + | + | − | + | | TA6 | Acid producer | − | − | − | + | + | + | − | − | | TA7 | Acid producer | − | − | − | + | + | + | − | − | | TA8 | Acid producer | − | − | − | + | + | + | + | + | | TA9 | Alkali producer | − | − | − | + | + | + | − | − | | TA10 | Acid producer | − | − | − | − | + | + | − | + |
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BTB: bromothymol blue; HAM: Hofer’s alkaline medium; KTL: ketolactose medium; YEMACR: yeast extract mannitol agar + Congo red; GPA: glucose peptone agar; IAA: indole-acetic-acid; AMM: ammonia; HCN: hydrogen cyanide.
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