Abstract
Pot experiment was conducted under glasshouse conditions to investigate the effects of the inoculation of N2 fixing Stenotrophomonas maltophilia strain Sb16 and application of three herbicides (paraquat, pretilachlor and 2,4-D) at 0, 1/2X, X and 2X their recommended field application rates (X) on endophytic bacterial populations and physio-morphological parameters of aerobic rice. The physio-morphological traits such as plant height, leaf area, chlorophyll content, nitrogen (N) content, root dry mass, root length, root volume and root average diameter were assessed at 60th day after the treatment. Data on endophytic bacterial counts were collected at 15, 30, 45 and 60 days after the treatment. Results obtained from the study revealed that the number of endophytic bacteria and physio-morphological characters of aerobic rice significantly decreased with increasing herbicides dose. Sb16 inoculation significantly (P ≤ 0.0001) increased all the parameters measured. N contents were the highest (2.53 %) in the inoculated samples treated with half dose of 2, 4-D; but the lowest contents (1.89 %) were obtained in the non-inoculated samples treated with double dose of paraquat. The results suggest that Sb16 strain can improve productivity of aerobic rice under herbicide-stressed soil.
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Claims 4
Claim · model-written summary
Increasing herbicide dose decreased the number of endophytic bacteria in aerobic rice.
- Taxon
- aerobic ricee0
- Treatment
- herbicidese1
- Interactor
- endophytic bacteriae2symbiont
- Outcome
- number of endophytic bacteriae2
- Direction
- decreasede2
- Qualifier
- with increasing herbicides dosee2
Not reportedComparator
Verbatim
e0“physio-morphological parameters of aerobic rice”
e1“application of three herbicides (paraquat, pretilachlor and 2,4-D)”
e2“the number of endophytic bacteria and physio-morphological characters of aerobic rice significantly decreased with increasing herbicides dose”
Claim · model-written summary
Sb16 inoculation significantly increased all measured parameters of aerobic rice.
- Taxon
- aerobic ricee0
- Treatment
- Sb16 inoculatione4
- Interactor
- Stenotrophomonas maltophilia strain Sb16
Stenotrophomonas maltophiliae3symbiont - Outcome
- parameters measurede4
- Direction
- increasede4
- Qualifier
- P ≤ 0.0001e4
- Comparator
- non-inoculated samplese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physio-morphological parameters of aerobic rice”
e3“investigate the effects of the inoculation of N2 fixing Stenotrophomonas maltophilia strain Sb16”
e4“Sb16 inoculation significantly (P ≤ 0.0001) increased all the parameters measured”
e6“the lowest contents (1.89 %) were obtained in the non-inoculated samples treated with double dose of paraquat”
Claim · model-written summary
Nitrogen content of aerobic rice was highest (2.53 %) in inoculated samples treated with half dose of 2,4-D.
- Taxon
- aerobic ricee0
- Treatment
- inoculated samples treated with half dose of 2, 4-De5
- Outcome
- N contentse5
- Direction
- higheste5
- Value
- 2.53 %e5
Not reportedComparator
Verbatim
e0“physio-morphological parameters of aerobic rice”
e5“N contents were the highest (2.53 %) in the inoculated samples treated with half dose of 2, 4-D”
Claim · model-written summary
Nitrogen content of aerobic rice was lowest (1.89 %) in non-inoculated samples treated with double dose of paraquat.
- Taxon
- aerobic ricee0
- Treatment
- non-inoculated samples treated with double dose of paraquate6
- Outcome
- N contentse5
- Direction
- loweste6
- Value
- 1.89 %e6
Not reportedComparator
Verbatim
e0“physio-morphological parameters of aerobic rice”
e5“N contents were the highest (2.53 %) in the inoculated samples treated with half dose of 2, 4-D”
e6“the lowest contents (1.89 %) were obtained in the non-inoculated samples treated with double dose of paraquat”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.