Abstract
An Investigation on the influence of Zinc-solubilizing bacteria (ZSB) inoculation, Zn fertilizer and organic acids on growth of rice was done at Microbiology lab, Universiti Putra Malaysia. Commercial oxalic acid (BDH), malic acid (SIGMA), citric acid (SIGMA), succinic acid (SIGMA) was used to solubilise Zn oxide, Zn carbonate and Zn sulfate at four different rates (0, 0.1, 1.0 and 10 mM). Selected organic acid and its rate was then combined with ZSB and Zn sulfate using sand culture experiment for rice plant treatment. Highest Zn sulfate solubilisation activity at 0.421 mg/L was found using citric acid as a solubilizer. Similar observation found for malic acid and oxalic acid in Zn sulfate at 0.331 mg/L and 0.249 mg/L respectively. Then, selected organic acids were malic acid and citric acid for plant treatment with Zn-solubilizing bacteria (ZSB) and Zn sulfate. Highest plant biomass was found in inoculated plants treated with 0.1 mM malic acid in the presence of Zn sulfate at 135.67 mg/3 plants. The same treatment was also observed for the highest plant height at 29.57 cm. With the addition of malic acid, the population of the rhizosphere, endosphere and non-rhizosphere varied, but higher than control treatment Application of ZSB inoculation, with Zn sulfate at 0.2 mg/L worked best with malic acid at 0.1 mM concentration due to high increase of rice plant growth parameters, Zn uptake and Zn concentration. Bacterial populations also varied due to different organic acids and their rate
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Claims 8
Claim · model-written summary
Citric acid gave the highest Zn sulfate solubilisation activity, 0.421 mg/L.
- Taxon
- rice
Oryza sativae0 - Treatment
- citric acide1
- Outcome
- Zn sulfate solubilisation activitye1
- Direction
- Higheste1
- Value
- 0.421 mg/Le1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e1“Highest Zn sulfate solubilisation activity at 0.421 mg/L was found using citric acid as a solubilizer”
Claim · model-written summary
Malic acid gave a similar Zn sulfate solubilisation activity, 0.331 mg/L.
- Taxon
- riceOryza sativae0
- Treatment
- malic acide2
- Outcome
- Zn sulfate solubilisation activitye1
- Direction
- Similar observation founde2
- Value
- 0.331 mg/Le2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e1“Highest Zn sulfate solubilisation activity at 0.421 mg/L was found using citric acid as a solubilizer”
e2“Similar observation found for malic acid and oxalic acid in Zn sulfate at 0.331 mg/L and 0.249 mg/L respectively”
Claim · model-written summary
Oxalic acid gave a similar Zn sulfate solubilisation activity, 0.249 mg/L.
- Taxon
- riceOryza sativae0
- Treatment
- oxalic acide2
- Outcome
- Zn sulfate solubilisation activitye1
- Direction
- Similar observation founde2
- Value
- 0.249 mg/Le2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e1“Highest Zn sulfate solubilisation activity at 0.421 mg/L was found using citric acid as a solubilizer”
e2“Similar observation found for malic acid and oxalic acid in Zn sulfate at 0.331 mg/L and 0.249 mg/L respectively”
Claim · model-written summary
Inoculated rice treated with 0.1 mM malic acid in the presence of Zn sulfate had the highest plant biomass, 135.67 mg per 3 plants.
- Taxon
- riceOryza sativae0
- Treatment
- 0.1 mM malic acid in the presence of Zn sulfatee3
- Interactor
- Zinc-solubilizing bacteria (ZSB)e4symbiont
- Outcome
- plant biomasse3
- Direction
- Higheste3
- Value
- 135.67 mg/3 plantse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e3“Highest plant biomass was found in inoculated plants treated with 0.1 mM malic acid in the presence of Zn sulfate at 135.67 mg/3 plants”
e4“Zinc-solubilizing bacteria (ZSB) inoculation”
Claim · model-written summary
The same treatment (0.1 mM malic acid) gave the highest plant height, 29.57 cm.
- Taxon
- riceOryza sativae0
- Treatment
- 0.1 mM malic acide3
- Outcome
- plant heighte5
- Direction
- higheste5
- Value
- 29.57 cme5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e3“Highest plant biomass was found in inoculated plants treated with 0.1 mM malic acid in the presence of Zn sulfate at 135.67 mg/3 plants”
e5“The same treatment was also observed for the highest plant height at 29.57 cm”
Claim · model-written summary
With malic acid, rhizosphere, endosphere and non-rhizosphere populations varied but were higher than in the control treatment.
- Taxon
- riceOryza sativae0
- Treatment
- malic acide6
- Outcome
- the population of the rhizosphere, endosphere and non-rhizospheree6
- Direction
- highere6
- Comparator
- control treatmente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e6“With the addition of malic acid, the population of the rhizosphere, endosphere and non-rhizosphere varied, but higher than control treatment”
Claim · model-written summary
Bacterial populations varied with the different organic acids and their rates.
- Taxon
- riceOryza sativae0
- Treatment
- different organic acidse7
- Outcome
- Bacterial populationse7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e7“Bacterial populations also varied due to different organic acids and their rate”
Claim · model-written summary
ZSB inoculation with 0.2 mg/L Zn sulfate and 0.1 mM malic acid gave a high increase in rice growth parameters, Zn uptake and Zn concentration.
- Taxon
- riceOryza sativae0
- Treatment
- ZSB inoculation, with Zn sulfate at 0.2 mg/Le1
- Interactor
- ZSBe1symbiont
- Outcome
- rice plant growth parameters, Zn uptake and Zn concentratione1
- Direction
- high increasee1
- Qualifier
- malic acid at 0.1 mM concentratione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on growth of rice”
e1“Application of ZSB inoculation, with Zn sulfate at 0.2 mg/L worked best with malic acid at 0.1 mM concentration due to high increase of rice plant growth parameters, Zn uptake and Zn concentration”
The same questions in other papers
zinc atom · growth · Oryza sativa (rice)Results differ
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- no effect
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See all 10 papers →malic acid · molecular: metabolites · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
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citric acid · molecular: metabolites · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
oxalic acid · molecular: metabolites · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
inoculation · growth · Oryza sativa (rice)Positive and negative results
361 papers in the same direction as this paper · 34 in the opposite direction · 3 reporting no difference from an alternative
- no effect
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- no effect
395 papers more in this group
See all 399 papers →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.