Abstract
The yield and fruit quality of processing tomatoes (Solanum lycopersicum L.) have increased markedly over the past decades. The aim of this work was to assess the effects of the organic (OFS) and conventional farming systems (CFS) on the main agronomic parameters involved in processing tomato yield components and fruit quality traits of heirloom and modern genotypes. Marketable yield increased from heirloom to modern genotypes, both in OFS and in CFS, showing a difference of ≈20 t per hectare in favor of CFS. Total fruit yield (TY) was not improved from heirloom to modern assessed genotypes, and a difference of ≈35 t per hectare was observed in favor of CFS. In both farming systems, the highest marketable yield of modern genotypes was due to a higher number of fruits per plant, harvest index, nitrogen agronomic efficiency (NAE), and fruit water productivity. Moreover, the main growth parameters involved in the yield differences between OFS and CFS were the number of leaves per plant, the average fruit weight, the normalized difference vegetation index (NDVI), and NAE. It is noteworthy that fruit quality improvement in terms of color and brix per hectare was paralleled by a decrease of tomato pH in both farming systems. According to our results, we conclude that to reduce the current yield gap between OFS and CFS, agronomic and breeding efforts should be undertaken to increase leaf area index, fruit number per plant, and NAE for better genotype adaptation to organic farming systems.
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Claims 9
Claim · model-written summary
Marketable yield rose from heirloom to modern genotypes in both systems.
- Taxon
- Tomato
Solanum lycopersicumt0 - Material
- modern genotypese0
- Outcome
- Marketable yielde0
- Direction
- increasede0
- Comparator
- heirloome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marketable yield increased from heirloom to modern genotypes, both in OFS and in CFS”
t0“Tomato Genotypes”
Claim · model-written summary
Conventional farming had about 20 t per hectare higher marketable yield.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- CFSe0
- Outcome
- Marketable yielde1
- Direction
- in favor ofe0
- Value
- ≈20 t per hectaree0
- Comparator
- OFSe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“showing a difference of ≈20 t per hectare in favor of CFS”
t0“Tomato Genotypes”
e1“Marketable yield increased from heirloom to modern genotypes, both in OFS and in CFS”
Claim · model-written summary
Total fruit yield did not improve between heirloom and modern genotypes.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- modern assessed genotypese0
- Outcome
- Total fruit yielde0
- Direction
- not improvede0
- Comparator
- heirloome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total fruit yield (TY) was not improved from heirloom to modern assessed genotypes”
t0“Tomato Genotypes”
Claim · model-written summary
Conventional farming had about 35 t per hectare higher total yield.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- CFSe0
- Outcome
- Total fruit yielde1
- Direction
- in favor ofe0
- Value
- ≈35 t per hectaree0
- Comparator
- OFSe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a difference of ≈35 t per hectare was observed in favor of CFS”
t0“Tomato Genotypes”
e1“Total fruit yield (TY) was not improved from heirloom to modern assessed genotypes”
e2“both in OFS and in CFS”
Claim · model-written summary
Modern genotypes had more fruits per plant and higher harvest index, NAE and water productivity.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- modern genotypese0
- Outcome
- number of fruits per plant, harvest index, nitrogen agronomic efficiency (NAE), and fruit water productivitye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest marketable yield of modern genotypes was due to a higher number of fruits per plant, harvest index, nitrogen agronomic efficiency (NAE), and fruit water productivity”
t0“Tomato Genotypes”
Claim · model-written summary
Leaf number, fruit weight, NDVI and NAE accounted for yield differences between farming systems.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- yield differencese0
- Qualifier
- number of leaves per plant, the average fruit weight, the normalized difference vegetation index (NDVI), and NAEe0
- Comparator
- OFS and CFSe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main growth parameters involved in the yield differences between OFS and CFS were the number of leaves per plant, the average fruit weight, the normalized difference vegetation index (NDVI), and NAE”
t0“Tomato Genotypes”
Claim · model-written summary
Fruit color and brix per hectare improved.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- color and brix per hectaree0
- Direction
- improvemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit quality improvement in terms of color and brix per hectare was paralleled by a decrease of tomato pH in both farming systems”
t0“Tomato Genotypes”
Claim · model-written summary
Tomato pH decreased in both systems.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- tomato pHe0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease of tomato pH in both farming systems”
t0“Tomato Genotypes”
Claim · model-written summary
Authors recommend increasing leaf area index, fruit number and NAE to narrow the organic yield gap.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- increase leaf area index, fruit number per plant, and NAEe0
- Qualifier
- better genotype adaptation to organic farming systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to reduce the current yield gap between OFS and CFS, agronomic and breeding efforts should be undertaken to increase leaf area index, fruit number per plant, and NAE for better genotype adaptation to organic farming systems”
t0“Tomato Genotypes”
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See all 103 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.