Abstract
Pot experiment was carried out at the research greenhouseof the King Abdul-Aziz University, Jeddah, Saudi Arabia to study the effect of humic acid (HA)on biological aspects (plant height, number of leaves and root length and plant growth biomass as well as chlorophyll contents) of common bean plants (Phaseolus vulgaris L.) under salinity stress conditions at 15, 30 and 45 days after planting (DAP).Four different salinity levels (0, 25, 50 and 100 mMNaCl) combined with and without HA supply at 3g L -1 ) in split plot design with three replicates were assigned. Results indicated that HAsupply significantly increased plant height, number of leaves, root length, shoot and root fresh and dry weights as well as chlorophyll contents of common bean than control plants at 15, 30 and 45 DAP, respectively. While, no significant responding was found for shoot fresh weigh at 15 DAP and root fresh weight at 30 DAP.Salt stress significantly declined the plant morphological and fresh and dry biomass as well as chlorophyllcontents and leaf area in shoot leaves. Application of HA markedly mitigated the adverse effects of a biotic stress on all studied biological aspects. Lastly, humic acid supply significantly increased the relative growth rates of shoot and root under saline conditions and humic is considered as a promising soil amendment to overcome adverse effects of salinity stress.
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Claims 10
Claim · model-written summary
Humic acid increased bean height, leaf number and root length at 15, 30 and 45 days after planting.
- Taxon
- Common Bean
Phaseolus vulgarist0 - Treatment
- HAsupplye0
- Outcome
- plant height, number of leaves, root lengthe0
- Direction
- increasede0
- Qualifier
- 15, 30 and 45 DAPe0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HAsupply significantly increased plant height, number of leaves, root length, shoot and root fresh and dry weights as well as chlorophyll contents of common bean than control plants at 15, 30 and 45 DAP, respectively”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Humic acid increased shoot and root fresh and dry weights at 15, 30 and 45 days after planting, with stated exceptions.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- HAsupplye0
- Outcome
- shoot and root fresh and dry weightse0
- Direction
- increasede0
- Qualifier
- 15, 30 and 45 DAPe0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HAsupply significantly increased plant height, number of leaves, root length, shoot and root fresh and dry weights as well as chlorophyll contents of common bean than control plants at 15, 30 and 45 DAP, respectively”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Humic acid increased chlorophyll contents in bean compared with controls.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- HAsupplye0
- Outcome
- chlorophyll contentse0
- Direction
- increasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HAsupply significantly increased plant height, number of leaves, root length, shoot and root fresh and dry weights as well as chlorophyll contents of common bean than control plants at 15, 30 and 45 DAP, respectively”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Shoot fresh weight did not respond significantly to humic acid at 15 DAP.
- Taxon
- Common BeanPhaseolus vulgarist0
- Outcome
- shoot fresh weighe0
- Qualifier
- 15 DAPe0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant responding was found for shoot fresh weigh at 15 DAP”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Root fresh weight did not respond significantly to humic acid at 30 DAP.
- Taxon
- Common BeanPhaseolus vulgarist0
- Outcome
- root fresh weighte0
- Qualifier
- 30 DAPe0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root fresh weight at 30 DAP”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Salt stress reduced bean morphology, biomass, chlorophyll contents and leaf area.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- Salt stresse0
- Outcome
- plant morphological and fresh and dry biomasse0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress significantly declined the plant morphological and fresh and dry biomass as well as chlorophyllcontents and leaf area in shoot leaves”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Salt stress reduced chlorophyll contents and leaf area.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- Salt stresse0
- Outcome
- chlorophyllcontents and leaf areae0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress significantly declined the plant morphological and fresh and dry biomass as well as chlorophyllcontents and leaf area in shoot leaves”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Humic acid mitigated adverse salinity effects on the studied bean traits.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- Application of HAe0
- Outcome
- adverse effects of a biotic stress on all studied biological aspectse0
- Direction
- mitigatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of HA markedly mitigated the adverse effects of a biotic stress on all studied biological aspects”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
Humic acid increased relative shoot and root growth rates under saline conditions.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- humic acid supplye0
- Outcome
- relative growth rates of shoot and roote0
- Direction
- increasede0
- Qualifier
- saline conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid supply significantly increased the relative growth rates of shoot and root under saline conditions”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
Claim · model-written summary
The authors consider humic acid a promising soil amendment for salinity stress.
- Taxon
- Common BeanPhaseolus vulgarist0
- Outcome
- promising soil amendment to overcome adverse effects of salinity stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic is considered as a promising soil amendment to overcome adverse effects of salinity stress”
t0“Common Bean Plants (Phaseolus vulgarisL.)”
The same questions in other papers
salinity · growth · Phaseolus vulgaris (common bean)Results differ
63 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- positive
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See all 71 papers →other · growth · Phaseolus vulgaris (common bean)Positive and negative results
31 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
29 papers more in this group
See all 33 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.