Abstract
An experiment was conducted in a covered polyhouse along with an open field (control) aside the Field Laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during the period from December 2007 to April 2008 to compare the phenological development and production potentials of two tomato varieties viz. BARI Tomato-3 and Ratan under polyhouse and open field conditions. Photosynthetically active radiation inside the polyhouse was reduced by about 40% compared to the outside (i.e. open field) while air and soil temperatures were always remained higher. From December to February the mid day air temperature under polyhouse and open field varied from 31.8 to 39.1ºC and 23.3 to 31.1ºC, respectively indicating about 8ºC higher air temperature inside polyhouse and during that time the average air temperature inside polyhouse was about 28ºC which was optimum for the growth and development of tomato plants. Relative humidity had opposite trends with that of air temperature i.e. it was lower inside the polyhouse as compared to open field. The above microclimatic variabilities inside polyhouse favoured the growth and development of tomato plant through increased plant height, number of branches/plant, rate of leaf area expansion and leaf area index over the plants grown in open field. Flowering, fruit setting and fruit maturity in polyhouse plants were advanced by about 3, 4 and 5 days, respectively compared to the crop raised in open field condition. Polyhoused plants had higher number of flower clusters/plant, flowers/cluster, flowers/plant, fruit clusters/plant, fruits/cluster and fruits/plant, and fruit length, fruit diameter, individual fruit weight, fruit weight/plant and fruit yield over open field condition. The fruit yield obtained from the polyhouse was 81 t/ha against 57 t/ha from the open field. Key words: Phenological development; polyhouse climate; production potentials; tomato. DOI: 10.4038/jas.v5i1.2329 Journal of Agricultural Sciences Vol.5(1) 2010 pp.19-31
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 14
Claim · model-written summary
Photosynthetically active radiation inside the polyhouse was reduced by about 40% compared with the open field.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- polyhousee0
- Outcome
- Photosynthetically active radiatione0
- Direction
- reducede0
- Value
- about 40%e0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthetically active radiation inside the polyhouse was reduced by about 40% compared to the outside (i.e. open field)”
t0“Tomato”
Claim · model-written summary
Air and soil temperatures were always higher in the polyhouse than in the open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee1
- Outcome
- air and soil temperaturese0
- Direction
- highere0
- Comparator
- open fielde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“air and soil temperatures were always remained higher”
e1“under polyhouse and open field conditions”
t0“Tomato”
Claim · model-written summary
From December to February the mid-day air temperature was about 8 degrees C higher inside the polyhouse than in the open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- air temperaturee0
- Direction
- highere0
- Value
- about 8ºCe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“about 8ºC higher air temperature inside polyhouse”
t0“Tomato”
Claim · model-written summary
Relative humidity was lower inside the polyhouse than in the open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- Relative humiditye1
- Direction
- lowere0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was lower inside the polyhouse as compared to open field”
e1“Relative humidity had opposite trends”
t0“Tomato”
Claim · model-written summary
Polyhouse tomato plants had increased plant height, number of branches per plant and rate of leaf area expansion compared with open-field plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- plant height, number of branches/plant, rate of leaf area expansione0
- Direction
- increasede0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inside polyhouse favoured the growth and development of tomato plant through increased plant height, number of branches/plant, rate of leaf area expansion and leaf area index over the plants grown in open field”
t0“Tomato”
Claim · model-written summary
Polyhouse tomato plants had increased leaf area index compared with open-field plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- leaf area indexe0
- Direction
- increasede0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inside polyhouse favoured the growth and development of tomato plant through increased plant height, number of branches/plant, rate of leaf area expansion and leaf area index over the plants grown in open field”
t0“Tomato”
Claim · model-written summary
Flowering in polyhouse tomato plants was advanced by about 3 days compared with open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- Floweringe0
- Direction
- advancede0
- Value
- about 3e0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowering, fruit setting and fruit maturity in polyhouse plants were advanced by about 3, 4 and 5 days, respectively compared to the crop raised in open field condition”
t0“Tomato”
Claim · model-written summary
Fruit setting in polyhouse tomato plants was advanced by about 4 days compared with open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- fruit settinge0
- Direction
- advancede0
- Value
- 4e0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowering, fruit setting and fruit maturity in polyhouse plants were advanced by about 3, 4 and 5 days, respectively compared to the crop raised in open field condition”
t0“Tomato”
Claim · model-written summary
Fruit maturity in polyhouse tomato plants was advanced by about 5 days compared with open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- fruit maturitye0
- Direction
- advancede0
- Value
- 5 dayse0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowering, fruit setting and fruit maturity in polyhouse plants were advanced by about 3, 4 and 5 days, respectively compared to the crop raised in open field condition”
t0“Tomato”
Claim · model-written summary
Polyhouse tomato plants had higher numbers of flower clusters per plant, flowers per cluster and flowers per plant than open-field plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Polyhoused plantse0
- Outcome
- flower clusters/plant, flowers/cluster, flowers/plante0
- Direction
- highere0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyhoused plants had higher number of flower clusters/plant, flowers/cluster, flowers/plant, fruit clusters/plant, fruits/cluster and fruits/plant, and fruit length, fruit diameter, individual fruit weight, fruit weight/plant and fruit yield over open field condition”
t0“Tomato”
Claim · model-written summary
Polyhouse tomato plants had higher numbers of fruit clusters per plant, fruits per cluster and fruits per plant than open-field plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Polyhoused plantse0
- Outcome
- fruit clusters/plant, fruits/cluster and fruits/plante0
- Direction
- highere0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyhoused plants had higher number of flower clusters/plant, flowers/cluster, flowers/plant, fruit clusters/plant, fruits/cluster and fruits/plant, and fruit length, fruit diameter, individual fruit weight, fruit weight/plant and fruit yield over open field condition”
t0“Tomato”
Claim · model-written summary
Polyhouse tomato plants had higher fruit length, fruit diameter and individual fruit weight than open-field plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Polyhoused plantse0
- Outcome
- fruit length, fruit diameter, individual fruit weighte0
- Direction
- highere0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyhoused plants had higher number of flower clusters/plant, flowers/cluster, flowers/plant, fruit clusters/plant, fruits/cluster and fruits/plant, and fruit length, fruit diameter, individual fruit weight, fruit weight/plant and fruit yield over open field condition”
t0“Tomato”
Claim · model-written summary
Polyhouse tomato plants had higher fruit weight per plant and fruit yield than open-field plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Polyhoused plantse0
- Outcome
- fruit weight/plant and fruit yielde0
- Direction
- highere0
- Comparator
- open field conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyhoused plants had higher number of flower clusters/plant, flowers/cluster, flowers/plant, fruit clusters/plant, fruits/cluster and fruits/plant, and fruit length, fruit diameter, individual fruit weight, fruit weight/plant and fruit yield over open field condition”
t0“Tomato”
Claim · model-written summary
Fruit yield from the polyhouse was 81 t/ha against 57 t/ha from the open field.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- polyhousee0
- Outcome
- fruit yielde0
- Direction
- againste0
- Value
- 81 t/hae0
- Qualifier
- 57 t/hae0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fruit yield obtained from the polyhouse was 81 t/ha against 57 t/ha from the open field”
t0“Tomato”
The same questions in other papers
protected cultivation · yield · Solanum lycopersicum (tomato)Results differ
21 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
20 papers more in this group
See all 24 papers →protected cultivation · growth · Solanum lycopersicum (tomato)Positive and negative results
12 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
10 papers more in this group
See all 14 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.