Abstract
The potential of biochar to improve crop productivity has received interest in recent years; however, little is known about the effects of biochar on crop nutritional quality. In this study, effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande. Application of biochar alone was sufficient to sustain the fruit growth, but results were affected by feedstock source of biochar. There were no significant differences in size and weight parameters and the sugar content was not significantly modified by biochar amendment. On the other hand, secondary metabolites showed changes relating to biochar type. Total phenol and flavonoid contents, as well as antioxidant activity, were higher in fruits grown in substrate amended with straw biochar and olive residues biochar. Lycopene, ß carotene and lutein concentrations from tomato fruits grown on substrates amended with different biochars were significantly lower than from the control. The data require confirmation in field experiments; however, this study offers new knowledge about the biochar effects on horticultural crops.
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Claims 7
Claim · model-written summary
Biochar applied alone was sufficient to sustain tomato fruit growth.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Application of biochar alonee1
- Outcome
- fruit growthe1
- Qualifier
- sufficient to sustaine1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e1“Application of biochar alone was sufficient to sustain the fruit growth, but results were affected by feedstock source of biochar”
Claim · model-written summary
Tomato results were affected by the feedstock source of biochar.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- feedstock source of biochare1
- Outcome
- resultse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e1“Application of biochar alone was sufficient to sustain the fruit growth, but results were affected by feedstock source of biochar”
Claim · model-written summary
Biochar amendment did not significantly change tomato fruit size and weight parameters.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- biochar amendmente2
- Outcome
- size and weight parameterse2
- Direction
- no significant differencese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e2“There were no significant differences in size and weight parameters and the sugar content was not significantly modified by biochar amendment”
Claim · model-written summary
Biochar amendment did not significantly modify tomato sugar content.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- biochar amendmente2
- Outcome
- sugar contente2
- Direction
- not significantly modifiede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e2“There were no significant differences in size and weight parameters and the sugar content was not significantly modified by biochar amendment”
Claim · model-written summary
Secondary metabolites of tomato fruit changed according to biochar type.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- biochar typee3
- Outcome
- secondary metabolitese3
- Direction
- changese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e3“secondary metabolites showed changes relating to biochar type”
Claim · model-written summary
Tomato fruit grown in substrate amended with straw or olive residues biochar had higher total phenol and flavonoid contents and antioxidant activity.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- straw biochar and olive residues biochare4
- Outcome
- Total phenol and flavonoid contents, as well as antioxidant activitye4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e4“Total phenol and flavonoid contents, as well as antioxidant activity, were higher in fruits grown in substrate amended with straw biochar and olive residues biochar”
Claim · model-written summary
Lycopene, beta-carotene and lutein concentrations in tomato fruit were significantly lower in substrates amended with different biochars than in the control.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- substrates amended with different biocharse5
- Outcome
- Lycopene, ß carotene and lutein concentrationse5
- Direction
- lowere5
- Comparator
- the controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande”
e5“Lycopene, ß carotene and lutein concentrations from tomato fruits grown on substrates amended with different biochars were significantly lower than from the control”
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