Paper · 1986 · The Journal of Agricultural Science

Effects of sowing date on the growth, yield and quality of okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria

G. O. Iremiren; D. A. Okiy

8
claims
18
verbatim quotes
10
citations
2
research areas
—
Not open access

Abstract

SUMMARY Two varieties of okra were sown at approximately 14-day intervals from 1 April to 1 June for 2 years during the main rainy season in Nigeria. Low soil temperature and moisture, which resulted from a combined effect of high solar radiation, high atmospheric temperature and low rainfall, led to poor seedling emergence at the early sowing dates. The growth of the fewer plants of the early sowing dates were more vigorous than those of later sowing dates and they attained 50% flowering earlier and had a longer harvest duration. This resulted in increases in number of pods per plant, pod length, pod diameter, pod volume, pod weight and pod yield per ha, indicating compensatory growth by the fewer plants in the early plantings. The relatively lower values obtained for these variables with the late sowing dates were also attributed to possible poor soil aeration arising from the increased rainfall during their growth period. Sowing dates did not generally affect the percentage moisture, oil and protein in the pods. The effects of varieties on the variables measured were more uniform than those of sowing dates and mostly not significant.

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Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Early sowing dates of okra led to poor seedling emergence under low soil temperature and moisture.

Treatment
early sowing datese1
Outcome
seedling emergencee1
Direction
poore1
Qualifier
Low soil temperature and moisturee1
Setting
southern Nigeriat0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e1

“Low soil temperature and moisture, which resulted from a combined effect of high solar radiation, high atmospheric temperature and low rainfall, led to poor seedling emergence at the early sowing dates”

✓ located verbatim in the source · abstract, characters 150–351 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Okra plants from early sowing dates were more vigorous in growth than those from later sowing dates.

Treatment
early sowing datese2
Outcome
growthe2
Direction
more vigorouse2
Comparator
later sowing datese2
Setting
southern Nigeriat0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e2

“The growth of the fewer plants of the early sowing dates were more vigorous than those of later sowing dates and they attained 50% flowering earlier and had a longer harvest duration”

✓ located verbatim in the source · abstract, characters 353–535 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Okra from early sowing dates attained 50% flowering earlier than those from later sowing dates.

Treatment
early sowing datese2
Outcome
50% floweringe2
Direction
earliere2
Comparator
later sowing datese2
Setting
southern Nigeriat0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e2

“The growth of the fewer plants of the early sowing dates were more vigorous than those of later sowing dates and they attained 50% flowering earlier and had a longer harvest duration”

✓ located verbatim in the source · abstract, characters 353–535 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Okra from early sowing dates had a longer harvest duration than those from later sowing dates.

Treatment
early sowing datese2
Outcome
harvest duratione2
Direction
longere2
Comparator
later sowing datese2
Setting
southern Nigeriat0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e2

“The growth of the fewer plants of the early sowing dates were more vigorous than those of later sowing dates and they attained 50% flowering earlier and had a longer harvest duration”

✓ located verbatim in the source · abstract, characters 353–535 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early plantings of okra increased the number of pods per plant, pod length and pod diameter compared with late sowing dates.

Treatment
early plantingse3
Outcome
number of pods per plante3
Direction
increasese3
Qualifier
pod length, pod diametere3
Comparator
late sowing datese4
Setting
southern Nigeriat0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e3

“This resulted in increases in number of pods per plant, pod length, pod diameter, pod volume, pod weight and pod yield per ha, indicating compensatory growth by the fewer plants in the early plantings”

✓ located verbatim in the source · abstract, characters 537–737 · show in text ↑
e4

“The relatively lower values obtained for these variables with the late sowing dates”

✓ located verbatim in the source · abstract, characters 739–822 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early plantings of okra increased pod volume, pod weight and pod yield per ha compared with late sowing dates.

Treatment
early plantingse3
Outcome
pod volume, pod weight and pod yield per hae3
Direction
increasese3
Comparator
late sowing datese4
Setting
southern Nigeriat0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e3

“This resulted in increases in number of pods per plant, pod length, pod diameter, pod volume, pod weight and pod yield per ha, indicating compensatory growth by the fewer plants in the early plantings”

✓ located verbatim in the source · abstract, characters 537–737 · show in text ↑
e4

“The relatively lower values obtained for these variables with the late sowing dates”

✓ located verbatim in the source · abstract, characters 739–822 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sowing dates did not generally affect the percentage moisture, oil and protein in okra pods.

Organ / stage
podse5
Treatment
Sowing datese5
Outcome
percentage moisture, oil and proteine5
Direction
no_changeinferrede5
Setting
southern Nigeriat0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e5

“Sowing dates did not generally affect the percentage moisture, oil and protein in the pods”

✓ located verbatim in the source · abstract, characters 939–1029 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Varieties of okra had mostly non-significant effects on the variables measured, more uniform than those of sowing dates.

Treatment
varietiese6
Outcome
variables measurede6
Comparator
sowing datese6
Setting
southern Nigeriat0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“okra (Abelmoschus esculentus (L.) Moench.) in southern Nigeria”

✓ located verbatim in the source · title, characters 59–121 · show in text ↑
e6

“The effects of varieties on the variables measured were more uniform than those of sowing dates and mostly not significant”

✓ located verbatim in the source · abstract, characters 1031–1153 · show in text ↑

sowing time · phenology · Abelmoschus esculentus (okra)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

sowing time · growth · Abelmoschus esculentus (okra)Positive and negative results

10 papers: 8 positive, 2 negative or no effect

7 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. negative
  3. no effect

6 papers more in this group

See all 10 papers →

sowing time · yield · Abelmoschus esculentus (okra)Positive and negative results

20 papers: 13 positive, 7 negative or no effect

12 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. negative
  3. negative

16 papers more in this group

See all 20 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.