Abstract
Abstract Biofertilizers, such as arbuscular mycorrhiza fungi and phosphate-solubilizing bacteria (PSB), have been reported to enhance plant growth under water stress conditions. This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth under water deficit stress. The experiment was conducted over two crop years (2019 and 2020) using a randomized complete block design with three replications. Four irrigation intervals (70, 90, 110 and 130 mm of cumulative evaporation) and six biofertilizer treatments (PSB, Funneliformis mosseae [FM], Rhizoglomus fasciculatum [RF], PSB + FM, PSB + RF and no use) were applied. Severe moisture stress (130 mm evaporation) compared to no stress (70 mm evaporation) increased substomatal carbon dioxide concentration. The application of biofertilizers improved tuber yield under severe moisture stress, with FM showing the highest increase (62.9%), followed by RF (59.8%) and PSB (48.4%). The use of PSB along with mycorrhizae led to a significant decrease in mycorrhizal colonization percentage at all irrigation levels. The highest percentage of colonization and net photosynthesis was obtained from the application of both mycorrhizal species under irrigation conditions after 70 mm of evaporation. The application of PSB alone resulted in a 14.6% increase in the transpiration rate, additionally, the use of mycorrhiza led to an 18.7% increase in stomatal conductivity compared to no-biofertilizer. The results suggest that the simultaneous use of PSB and mycorrhizae can be effective in mild moisture stress, but in severe moisture stress, the use of mycorrhizal species alone is more effective.
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Claims 10
Claim · model-written summary
Severe moisture stress increased substomatal carbon dioxide concentration in potato compared with no stress.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Severe moisture stress (130 mm evaporation)e1
- Outcome
- substomatal carbon dioxide concentratione1
- Direction
- increasede1
- Comparator
- no stress (70 mm evaporation)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“Severe moisture stress (130 mm evaporation) compared to no stress (70 mm evaporation) increased substomatal carbon dioxide concentration”
Claim · model-written summary
Funneliformis mosseae raised potato tuber yield under severe moisture stress by 62.9%, the highest increase among the biofertilizers.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Funneliformis mosseaee2
- Interactor
- Funneliformis mosseae
Funneliformis mosseaee2symbiont - Outcome
- tuber yielde1
- Direction
- improvede1
- Value
- 62.9%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“The application of biofertilizers improved tuber yield under severe moisture stress, with FM showing the highest increase (62.9%), followed by RF (59.8%) and PSB (48.4%)”
e2“Funneliformis mosseae [FM]”
Claim · model-written summary
Rhizoglomus fasciculatum raised potato tuber yield under severe moisture stress by 59.8%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Rhizoglomus fasciculatume2
- Interactor
- Rhizoglomus fasciculatume2symbiont
- Outcome
- tuber yielde1
- Direction
- improvede1
- Value
- 59.8%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“The application of biofertilizers improved tuber yield under severe moisture stress, with FM showing the highest increase (62.9%), followed by RF (59.8%) and PSB (48.4%)”
e2“Rhizoglomus fasciculatum [RF]”
Claim · model-written summary
Phosphate-solubilizing bacteria raised potato tuber yield under severe moisture stress by 48.4%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- PSBe1
- Interactor
- phosphate-solubilizing bacteriae2symbiont
- Outcome
- tuber yielde1
- Direction
- improvede1
- Value
- 48.4%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“The application of biofertilizers improved tuber yield under severe moisture stress, with FM showing the highest increase (62.9%), followed by RF (59.8%) and PSB (48.4%)”
e2“phosphate-solubilizing bacteria (PSB)”
Claim · model-written summary
Combined PSB and mycorrhizae significantly decreased mycorrhizal colonization percentage in potato at all irrigation levels.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- PSB along with mycorrhizaee1
- Outcome
- mycorrhizal colonization percentagee1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“The use of PSB along with mycorrhizae led to a significant decrease in mycorrhizal colonization percentage at all irrigation levels”
Claim · model-written summary
Both mycorrhizal species gave the highest colonization and net photosynthesis under irrigation after 70 mm of evaporation.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- both mycorrhizal speciese1
- Outcome
- percentage of colonization and net photosynthesise1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“The highest percentage of colonization and net photosynthesis was obtained from the application of both mycorrhizal species under irrigation conditions after 70 mm of evaporation”
Claim · model-written summary
PSB alone increased the transpiration rate of potato by 14.6%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- PSB alonee1
- Outcome
- transpiration ratee1
- Direction
- increasee1
- Value
- 14.6%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“The application of PSB alone resulted in a 14.6% increase in the transpiration rate”
Claim · model-written summary
Mycorrhiza increased stomatal conductivity of potato by 18.7% compared with no biofertilizer.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- mycorrhizae1
- Outcome
- stomatal conductivitye1
- Direction
- increasee1
- Value
- 18.7%e1
- Comparator
- no-biofertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“the use of mycorrhiza led to an 18.7% increase in stomatal conductivity compared to no-biofertilizer”
Claim · model-written summary
Simultaneous use of PSB and mycorrhizae can be effective for potato under mild moisture stress.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- effective in mild moisture stresse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“the simultaneous use of PSB and mycorrhizae can be effective in mild moisture stress”
Claim · model-written summary
Under severe moisture stress, mycorrhizal species alone are more effective than the combination.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- use of mycorrhizal species alone is more effectivee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to investigate the effect of different biofertilizers on potato photosynthesis and growth”
e1“in severe moisture stress, the use of mycorrhizal species alone is more effective”
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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.