Abstract
The growth and yield of late-season tomato was studied at Akure, Nigeria, from 1995 to 1998. In each year, treatments were 0 (bare ground) or 12 kg/ha grass mulch applied to tomatoes at densities of 1·9, 2·8, 3·7 and 5·6 plants/m 2 in a factorial combination. Increase in plant density and mulching reduced soil temperature at 5 cm depth while only the latter enhanced soil moisture at 10 cm depth throughout tomato growth. The improved soil hydrothermal regime resulted in earlier onset of flowering, 50% flowering date and date of first harvest respectively and shorter fruit harvest duration in tomato grown on either bare ground or at increased plant density. Although increased plant density reduced shoot dry weight per plant at final harvest, both root length per plant and root dry weight per plant were enhanced. Fruit yield/ha increased as plant density increased although yield of the individual plants and their components were significantly reduced. Because of compensation at higher plant population densities, it is economical to grow late-season tomato at 5·6 plants/m 2 . Mulching enhanced growth and yield of tomato compared to bare ground and the result emphasizes the need for early and rapid growth of late-season tomato before the onset of terminal drought.
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Claims 9
Claim · model-written summary
Increased plant density reduced soil temperature at 5 cm depth in tomato.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Increase in plant densitye1
- Outcome
- soil temperature at 5 cm depthe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e1“Increase in plant density and mulching reduced soil temperature at 5 cm depth while only the latter enhanced soil moisture at 10 cm depth throughout tomato growth”
Claim · model-written summary
Mulching enhanced soil moisture at 10 cm depth in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- mulchinge1
- Outcome
- soil moisture at 10 cm depthe1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e1“Increase in plant density and mulching reduced soil temperature at 5 cm depth while only the latter enhanced soil moisture at 10 cm depth throughout tomato growth”
Claim · model-written summary
Increased plant density led to earlier onset of flowering in tomato compared with bare ground.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- increased plant densitye2
- Outcome
- onset of floweringe2
- Direction
- earliere2
- Comparator
- bare grounde2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e2“The improved soil hydrothermal regime resulted in earlier onset of flowering, 50% flowering date and date of first harvest respectively and shorter fruit harvest duration in tomato grown on either bare ground or at increased plant density”
Claim · model-written summary
Increased plant density reduced shoot dry weight per tomato plant at final harvest.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- increased plant densitye3
- Outcome
- shoot dry weight per plante3
- Direction
- reducede3
- Qualifier
- at final harveste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e3“Although increased plant density reduced shoot dry weight per plant at final harvest, both root length per plant and root dry weight per plant were enhanced”
Claim · model-written summary
Increased plant density enhanced root length per plant and root dry weight per plant in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- increased plant densitye3
- Outcome
- root length per plant and root dry weight per plante3
- Direction
- enhancede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e3“Although increased plant density reduced shoot dry weight per plant at final harvest, both root length per plant and root dry weight per plant were enhanced”
Claim · model-written summary
Fruit yield per hectare of tomato increased as plant density increased.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- plant densitye4
- Outcome
- Fruit yield/hae4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e4“Fruit yield/ha increased as plant density increased although yield of the individual plants and their components were significantly reduced”
Claim · model-written summary
Yield of individual tomato plants and their components were significantly reduced as plant density increased.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- plant densitye4
- Outcome
- yield of the individual plants and their componentse4
- Direction
- significantly reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e4“Fruit yield/ha increased as plant density increased although yield of the individual plants and their components were significantly reduced”
Claim · model-written summary
Growing late-season tomato at 5.6 plants/m2 is economical because of compensation at higher densities (authors recommendation).
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- grow late-season tomato at 5·6 plants/m 2e5
- Value
- 5·6 plants/m 2e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e5“it is economical to grow late-season tomato at 5·6 plants/m 2”
Claim · model-written summary
Mulching enhanced growth and yield of tomato compared with bare ground.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Mulchinge6
- Outcome
- growth and yielde6
- Direction
- enhancede6
- Comparator
- bare grounde6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“late-season tomato (Lycopersicon esculentum)”
e6“Mulching enhanced growth and yield of tomato compared to bare ground”
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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.