Abstract
The cowpea is an important human food crop, eaten as grain and green pods. The species has determinate and indeterminate growth cultivars. The latter require a conventional trellis, which increases production costs and thus creates the need for cheaper alternatives. The aim of the study was to determine, in different types of trellises, green pod growth and yield and cowpea profitability. Planting took place on June 8, 2009 in Cocula, Guerrero. The following were evaluated: time of occurrence of the phenological phases, green pod yield (GPY), pod number (PN), pod length and diameter (PL and PD), number of green leaves (NGL), leaf area index (LAI), leaf area duration (LAD), water use efficiency (WUE), evapotranspiration (ETc) and economic profitability in conventional, maize and sunflower trellises (CT, MT and ST, respectively). During the crop cycle, the average maximum temperature was 38 °C and the minimum was 20 °C, with 738 mm of precipitation. CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days). MT achieved the highest net income ($ 28,784.00), followed by MT and ST. Green pod productionat the site was achieved with 278 mm of crop evapotranspiration and 1,770 °C of heat units accumulated from planting to final cut.
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Claims 8
Claim · model-written summary
The conventional trellis gave the highest green pod yield, 1,501 g·m-2.
- Taxon
- COWPEA
Vigna unguiculatat0 - Treatment
- CTe1
- Outcome
- GPYe1
- Direction
- higheste1
- Value
- 1,501 g·m-2e1
- Comparator
- MT and STe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e1“CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days)”
e2“in conventional, maize and sunflower trellises (CT, MT and ST, respectively)”
Claim · model-written summary
The conventional trellis gave the highest pod number, 149 m-2.
- Taxon
- COWPEAVigna unguiculatat0
- Treatment
- CTe1
- Outcome
- PNe1
- Direction
- higheste1
- Value
- 149 m-2e1
- Comparator
- MT and STe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e1“CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days)”
e2“in conventional, maize and sunflower trellises (CT, MT and ST, respectively)”
Claim · model-written summary
The conventional trellis gave the highest water use efficiency, 5.4 g·m-2·mm-1.
- Taxon
- COWPEAVigna unguiculatat0
- Treatment
- CTe1
- Outcome
- WUEe1
- Direction
- higheste1
- Value
- 5.4 g·m-2·mm-1e1
- Comparator
- MT and STe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e1“CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days)”
e2“in conventional, maize and sunflower trellises (CT, MT and ST, respectively)”
Claim · model-written summary
The conventional trellis was associated with greater number of green leaves, 334 m-2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e1“CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days)”
Claim · model-written summary
The conventional trellis was associated with greater leaf area index, 1.3.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e1“CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days)”
Claim · model-written summary
The conventional trellis was associated with greater leaf area duration, 57 days.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e1“CT presented the highest GPY (1,501 g·m-2), PN (149 m-2) and WUE (5.4 g·m-2·mm-1), which was associated with greater NGL (334 m-2), LAI (1.3) and LAD (57 days)”
Claim · model-written summary
The maize trellis gave the highest net income, $ 28,784.00.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e3“MT achieved the highest net income ($ 28,784.00), followed by MT and ST”
Claim · model-written summary
Green pod production was achieved with 278 mm of crop evapotranspiration and 1,770 °C of accumulated heat units.
- Taxon
- COWPEAVigna unguiculatat0
- Outcome
- green pod productione4
- Value
- 278 mme4
- Qualifier
- 1,770 °C of heat units accumulated from planting to final cute4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GREEN POD PRODUCTION IN COWPEA”
e4“Green pod productionat the site was achieved with 278 mm of crop evapotranspiration and 1,770 °C of heat units accumulated from planting to final cut”
The same questions in other papers
tillage · yield · Vigna unguiculata (cowpea)Results differ
26 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
31 papers more in this group
See all 35 papers →tillage · physiology: water · Vigna unguiculata (cowpea)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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.