Abstract
Present investigation was made to isolate and characterize plant growth promoting rhizobacteria (Rkh1 - Rkh4) from rhizosphere of four weeds: Chrysopogon aucheri,Lactuca dissecta, Solanum surratense and Sonchus arvensis thriving under high salinity (EC: 2.3 dS/m) of Khewra salt range and the results were compared with strain Rak isolated from rhizosphere (EC: 0.2 dS/m) of Solanum surratense grown in arid area of district Attock. The tolerance of all the strains was checked against the salt present in culture media in the form of rhizospheric soil filtrate of weeds collected from Khewra salt range. The nutrient contents of rhizospheric soil of weeds were measured. All the strains were capable to produce phytohormones indole-3-acetic acid (IAA), gibberellic acid (GA3), trans-zeatin riboside (t-zr) and abscisic acid (ABA) in the culture media. Inoculation of strains on soybean seedlings treated with or without 20 dS/m NaCl resulted in better growth and higher proline contents than control plants. The strains isolated from weeds of Khewra salt range particularly Rkh3 appears more promising for potential biofertilizers in saline fields. Key words: Plant growth promoting rhizobacteria, nutrient contents, salt tolerance, phytohormones production, proline contents.
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Claims 4
Claim · model-written summary
Plant growth promoting rhizobacteria isolated from salt-range weeds produced indole-3-acetic acid, gibberellic acid, trans-zeatin riboside and abscisic acid in culture media.
Verbatim
e0“plant growth promoting rhizobacteria (Rkh1 - Rkh4) from rhizosphere of four weeds: Chrysopogon aucheri,Lactuca dissecta, Solanum surratense and Sonchus arvensis thriving under high salinity”
e1“All the strains were capable to produce phytohormones indole-3-acetic acid (IAA), gibberellic acid (GA3), trans-zeatin riboside (t-zr) and abscisic acid (ABA) in the culture media”
Claim · model-written summary
Inoculation of rhizobacteria on soybean seedlings gave better growth than control plants, with or without 20 dS/m NaCl.
- Taxon
- soybean
Glycine maxe1 - Treatment
- Inoculation of strainse1
- Interactor
- plant growth promoting rhizobacteriae0symbiont
- Outcome
- growthe1
- Direction
- bettere1
- Qualifier
- with or without 20 dS/m NaCle1
- Comparator
- control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth promoting rhizobacteria (Rkh1 - Rkh4) from rhizosphere of four weeds: Chrysopogon aucheri,Lactuca dissecta, Solanum surratense and Sonchus arvensis thriving under high salinity”
e1“Inoculation of strains on soybean seedlings treated with or without 20 dS/m NaCl resulted in better growth and higher proline contents than control plants”
Claim · model-written summary
Inoculation of rhizobacteria on soybean seedlings gave higher proline contents than control plants, with or without 20 dS/m NaCl.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Inoculation of strainse1
- Interactor
- plant growth promoting rhizobacteriae0symbiont
- Outcome
- proline contentse1
- Direction
- highere1
- Qualifier
- with or without 20 dS/m NaCle1
- Comparator
- control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth promoting rhizobacteria (Rkh1 - Rkh4) from rhizosphere of four weeds: Chrysopogon aucheri,Lactuca dissecta, Solanum surratense and Sonchus arvensis thriving under high salinity”
e1“Inoculation of strains on soybean seedlings treated with or without 20 dS/m NaCl resulted in better growth and higher proline contents than control plants”
Claim · model-written summary
Rkh3 appears more promising than the other strains as a potential biofertilizer in saline fields.
- Taxon
- Glycine max L.Glycine maxe0
- Interactor
- Rkh3e1symbiont
- Outcome
- potential biofertilizers in saline fieldse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L.”
e1“The strains isolated from weeds of Khewra salt range particularly Rkh3 appears more promising for potential biofertilizers in saline fields”
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