Paper · 2017 · Journal of Agricultural Science and Technology B

Effect of Planting Date, Spacing and Seeding Methods on Disease Development and Yield Components of Rice (Oryza sativa L.) in Southeastern Nigeria

Christian Chukwunenye Iwuagwu; Charles Ikechukwu Umechuruba; Andrew Chukwuma Nwogbaga

14
claims
28
verbatim quotes
5
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

To investigate the effect of planting date, spacing and seeding methods on disease development and yield components of rice, a factorial experiment in randomized complete block design (RCBD) with four replications was conducted during 2011 planting season at Izzi Local Government Area (LGA) of Ebonyi State, Nigeria. This experiment was carried out with four levels of planting dates (early June, late June, early July and late July), three levels of spacing (15, 20 and 25 cm) and two levels of seeding method (direct seeding and seedling transplanting). The studied traits included plant height (PH), number of tillers (NT), leaf area (LA), root length (RL), panicle length (PL), 1,000 seed weight (SW), disease incidence and severity. The result showed that all the factors had significant effect on the parameters measured. Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54, and the second largest PL of 25.08 cm and SW of 25.12 g. Also sowing in early July had the highest disease severity of 3.21, followed by 3.14 which occurred in late July, while the least 2.17 occurred in early June. The direct seeding method had the highest disease incidence of 70.83%, followed by plant spacing of 15 cm 15 cm which had the disease incidence of 69.72%, while sowing in early June had the least disease incidence of 57.50%. In conclusion, planting of rice in Southeastern Nigeria should be done in early July, as the yield components were significantly better than in other dates though with the highest disease severity.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early July gave the highest leaf area (LA) of 65.38 cm2 among the planting dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
Sowing in early Julye1
Outcome
LAe1
Direction
higheste1
Value
65.38 cm 2e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e1

“Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54”

✓ located verbatim in the source · abstract, characters 829–932 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early July gave the highest plant height (PH) of 122.00 cm among the planting dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
Sowing in early Julye1
Outcome
PHe1
Direction
higheste1
Value
122.00 cme1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e1

“Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54”

✓ located verbatim in the source · abstract, characters 829–932 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early July gave the highest root length (RL) of 29.04 cm among the planting dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
Sowing in early Julye1
Outcome
RLe1
Direction
higheste1
Value
29.04 cme1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e1

“Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54”

✓ located verbatim in the source · abstract, characters 829–932 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early July gave the highest tiller number (TN) of 10.54 among the planting dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
Sowing in early Julye1
Outcome
TNe1
Direction
higheste1
Value
10.54e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e1

“Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54”

✓ located verbatim in the source · abstract, characters 829–932 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early July gave the second largest panicle length (PL) of 25.08 cm among the planting dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
Sowing in early Julye1
Outcome
PLe2
Direction
second largeste2
Value
25.08 cme2

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e1

“Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54”

✓ located verbatim in the source · abstract, characters 829–932 · show in text ↑
e2

“the second largest PL of 25.08 cm and SW of 25.12 g”

✓ located verbatim in the source · abstract, characters 938–989 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early July gave the second largest 1,000 seed weight (SW) of 25.12 g among the planting dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
Sowing in early Julye1
Outcome
SWe2
Direction
second largeste2
Value
25.12 ge2

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e1

“Sowing in early July had the highest LA of 65.38 cm 2 , PH of 122.00 cm, RL of 29.04 cm and TN of 10.54”

✓ located verbatim in the source · abstract, characters 829–932 · show in text ↑
e2

“the second largest PL of 25.08 cm and SW of 25.12 g”

✓ located verbatim in the source · abstract, characters 938–989 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sowing rice in early July gave the highest disease severity (3.21) among the sowing dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
sowing in early Julye3
Outcome
disease severitye3
Direction
higheste3
Value
3.21e3

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e3

“Also sowing in early July had the highest disease severity of 3.21, followed by 3.14 which occurred in late July, while the least 2.17 occurred in early June”

✓ located verbatim in the source · abstract, characters 991–1148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sowing rice in late July gave the second highest disease severity (3.14) among the sowing dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
late Julye3
Outcome
disease severitye3
Direction
higherinferrede3
Value
3.14e3

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e3

“Also sowing in early July had the highest disease severity of 3.21, followed by 3.14 which occurred in late July, while the least 2.17 occurred in early June”

✓ located verbatim in the source · abstract, characters 991–1148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early June gave the least disease severity (2.17) among the sowing dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
early Junee3
Outcome
disease severitye3
Direction
leaste3
Value
2.17e3

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e3

“Also sowing in early July had the highest disease severity of 3.21, followed by 3.14 which occurred in late July, while the least 2.17 occurred in early June”

✓ located verbatim in the source · abstract, characters 991–1148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Direct seeding of rice had the highest disease incidence (70.83%) among the seeding methods.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
direct seeding methode4
Outcome
disease incidencee4
Direction
higheste4
Value
70.83%e4

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e4

“The direct seeding method had the highest disease incidence of 70.83%”

✓ located verbatim in the source · abstract, characters 1150–1219 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Plant spacing of 15 cm in rice had the second highest disease incidence (69.72%) among the spacing treatments.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
plant spacing of 15 cme5
Outcome
disease incidencee5
Direction
higherinferrede5
Value
69.72%e5

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e5

“followed by plant spacing of 15 cm 15 cm which had the disease incidence of 69.72%”

✓ located verbatim in the source · abstract, characters 1221–1303 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sowing rice in early June gave the least disease incidence (57.50%) among the sowing dates.

Taxon
Oryza sativa L.Oryza sativat0
Treatment
sowing in early Junee6
Outcome
disease incidencee6
Direction
leaste6
Value
57.50%e6

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 100–122 · show in text ↑
e6

“while sowing in early June had the least disease incidence of 57.50%”

✓ located verbatim in the source · abstract, characters 1305–1373 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend that rice in southeastern Nigeria should be planted in early July.

Outcome
should be done in early Julye7
Setting
Southeastern Nigeriae7

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e7

“planting of rice in Southeastern Nigeria should be done in early July, as the yield components were significantly better than in other dates”

✓ located verbatim in the source · abstract, characters 1390–1530 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Yield components of rice planted in early July were significantly better than those planted at other dates.

Treatment
early Julye7
Outcome
yield componentse7
Direction
bettere7
Comparator
other datese7

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e7

“planting of rice in Southeastern Nigeria should be done in early July, as the yield components were significantly better than in other dates”

✓ located verbatim in the source · abstract, characters 1390–1530 · show in text ↑

sowing time · disease · Oryza sativa (rice)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

1 paper more in this group

See all 5 papers →

density · disease · Oryza sativa (rice)Positive and negative results

11 papers: 5 positive, 6 negative or no effect

5 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
    Medium spacing enhanced lodging resistance.

    Effects of row-spacing on morphological and eco-physiological characteristics in rice · 2007 · compared with wide row-spacing(40 cm×10 cm) and narrow row-spacing treatments

    Opposite direction

  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

sowing time · growth · Oryza sativa (rice)Positive and negative results

33 papers: 18 positive, 15 negative or no effect

17 papers in the same direction as this paper · 15 in the opposite direction

  1. no effect
  2. no effect
  3. negative

29 papers more in this group

See all 33 papers →

transplanting · disease · Oryza sativa (rice)Positive and negative results

51 papers: 34 positive, 17 negative or no effect

16 papers in the same direction as this paper · 34 in the opposite direction

  1. positive
  2. positive
  3. positive

47 papers more in this group

See all 51 papers →

sowing time · yield · Oryza sativa (rice)Positive and negative results

193 papers: 123 positive, 70 negative or no effect

122 papers in the same direction as this paper · 68 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

189 papers more in this group

See all 193 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.