Abstract
Field experiments were carried out to assess the impact of 100% NPK fertilizer recommendation (300 kg NPK 20:10:10), 100% Tithonia compost (TC), 75% NPK + 25% TC, 50% NPK + 50% TC, 25% NPK + 75% TC and control (non-fertilized plant) on the growth, fruit yield, nutritional and lycopene contents of three tomato varieties (Raoma VF; Ogbomoso local and Califonia wonder). The experiment was a split plot fitted into a randomized complete block design replicated three times. Data were collected on growth and reproductive parameters, fruit and seed attributes, and fruit proximate and nutritional contents. Data collected were subjected to analysis of variance to determine significant means. Significant varietal differences were observed among the tomato varieties in terms of growth, fruit yield and nutritional attributes. The plant dry matter yield was highest in Ogbomoso local and least in Roma VF. Fruit yield obtained with Ogbomoso local was 45 and 56% higher than what was obtained for Roma VF and Califonia wonder, respectively. In terms of vitamin C content, Roma VF fertilized with 50% NPK + 50% TC gave the highest value which is 23 to 67% higher than values obtained from the other treatment combinations. Again, irrespective of variety, organically grown tomato contains higher content of lycopene. It was also observed that the higher the proportion of TC compost in the treatments, the better the lycopene content. It could be concluded that the use of organic fertilizer has potential in improving the growth, fruit yield and nutritional contents of any of the three tomato varieties studied. Key words: Lycopersicon esculentum, compost, inorganic fertilizers, fruit yield, nutritional quality, lycopene content.
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Claims 7
Claim · model-written summary
Tomato varieties differed significantly in growth, fruit yield, and nutritional attributes.
- Taxon
- tomato
Solanum lycopersicume0 - Outcome
- growth, fruit yield and nutritional attributese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant varietal differences were observed among the tomato varieties in terms of growth, fruit yield and nutritional attributes”
Claim · model-written summary
Ogbomoso local had the highest dry matter yield and Roma VF the least.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Ogbomoso locale0
- Outcome
- plant dry matter yielde0
- Direction
- higheste0
- Comparator
- Roma VFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant dry matter yield was highest in Ogbomoso local and least in Roma VF”
t0“tomato”
Claim · model-written summary
Ogbomoso local fruit yield exceeded Roma VF by 45%.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Ogbomoso locale0
- Outcome
- Fruit yielde0
- Direction
- highere0
- Value
- 45e0
- Comparator
- Roma VFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit yield obtained with Ogbomoso local was 45 and 56% higher than what was obtained for Roma VF and Califonia wonder, respectively”
t0“tomato”
Claim · model-written summary
Ogbomoso local fruit yield exceeded Califonia wonder by 56%.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Ogbomoso locale0
- Outcome
- Fruit yielde0
- Direction
- highere0
- Value
- 56%e0
- Comparator
- Califonia wondere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit yield obtained with Ogbomoso local was 45 and 56% higher than what was obtained for Roma VF and Califonia wonder, respectively”
t0“tomato”
Claim · model-written summary
Roma VF with equal NPK and compost had the highest vitamin C, 23 to 67% above other combinations.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Roma VFe0
- Treatment
- 50% NPK + 50% TCe0
- Outcome
- vitamin C contente0
- Direction
- higheste0
- Value
- 23 to 67%e0
- Comparator
- the other treatment combinationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In terms of vitamin C content, Roma VF fertilized with 50% NPK + 50% TC gave the highest value which is 23 to 67% higher than values obtained from the other treatment combinations”
t0“tomato”
Claim · model-written summary
Organically grown tomato had higher lycopene content.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- organically growne0
- Outcome
- content of lycopenee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“organically grown tomato contains higher content of lycopene”
Claim · model-written summary
Increasing compost proportion improved tomato lycopene content.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- TC composte0
- Outcome
- lycopene contente0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the higher the proportion of TC compost in the treatments, the better the lycopene content”
t0“tomato”
The same questions in other papers
fertilization · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results
154 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
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See all 171 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.