Paper · 2013 · Plant Production Science

【Short Report】Influence of the Improved System of Rice Intensification (SRI) on Rice Yield, Yield Components and Tillering Characteristics under Different Rice Establishment Methods

Song Chen; Xi Zheng; Dangying Wang; et al.

9
claims
17
verbatim quotes
17
citations
2
research areas
✓
Open access · cc-by

Abstract

The impacts of the system of rice intensification (SRI) and conventional management (CM) on grain yield, yield components and tillering capacity were examined under 4 rice establishment methods transplanting (TP), seedling casting (SC), mechanical transplanting (MT) and direct seeding (DS). SRI produced significantly higher grain yield than CM under TP and MT but not under DS or SC. DS and SC produced much higher seedling quality than TP or MT, suggesting that robust seedlings with vigorous roots weaken the positive effect of SRI on rice yield. SRI produced a higher tillering rate than CM, but did not affect ear-bearing tiller rate significantly. Moreover, the net photosynthetic rate of the recent fully expanded leaf at mid-tillering stage was significantly higher in SRI than in CM under MT and TP. The obtained results also indicated that SRI increased biomass accumulation before heading and improved utilization of photosynthates in the grain-filling stage.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

SRI produced significantly higher grain yield than conventional management under transplanting and mechanical transplanting.

Treatment
SRIe1
Outcome
grain yielde1
Direction
highere1
Qualifier
under TP and MTe1
Comparator
CMe1

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

e1

“SRI produced significantly higher grain yield than CM under TP and MT”

✓ located verbatim in the source · abstract, characters 292–361 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

SRI did not produce higher grain yield than conventional management under direct seeding or seedling casting.

Treatment
SRIe1
Outcome
grain yielde1
Direction
no_changeinferrede1
Qualifier
under DS or SCe1
Comparator
CMe1

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

e1

“SRI produced significantly higher grain yield than CM under TP and MT but not under DS or SC”

✓ located verbatim in the source · abstract, characters 292–384 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Direct seeding and seedling casting produced much higher seedling quality than transplanting or mechanical transplanting.

Treatment
DS and SCe1
Outcome
seedling qualitye1
Direction
much highere1
Comparator
TP or MTe1

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

e1

“DS and SC produced much higher seedling quality than TP or MT”

✓ located verbatim in the source · abstract, characters 386–447 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors suggest that robust seedlings with vigorous roots weaken the positive effect of SRI on rice yield.

Treatment
SRIe1
Outcome
positive effect of SRI on rice yielde1
Qualifier
robust seedlings with vigorous roots weakene1

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

e1

“suggesting that robust seedlings with vigorous roots weaken the positive effect of SRI on rice yield”

✓ located verbatim in the source · abstract, characters 449–549 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI produced a higher tillering rate than conventional management.

Treatment
SRIe1
Outcome
tillering ratee1
Direction
highere1
Comparator
CMe1

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

e1

“SRI produced a higher tillering rate than CM”

✓ located verbatim in the source · abstract, characters 551–595 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

SRI did not significantly affect the ear-bearing tiller rate relative to conventional management.

Treatment
SRIe1
Outcome
ear-bearing tiller ratee1
Direction
did not affecte1
Comparator
CMe1

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

e1

“SRI produced a higher tillering rate than CM, but did not affect ear-bearing tiller rate significantly”

✓ located verbatim in the source · abstract, characters 551–653 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Net photosynthetic rate of the recent fully expanded leaf at mid-tillering was significantly higher in SRI than in conventional management under mechanical transplanting and transplanting.

Organ / stage
recent fully expanded leaf at mid-tillering stagee1
Treatment
SRIe1
Outcome
net photosynthetic ratee1
Direction
highere1
Qualifier
under MT and TPe1
Comparator
CMe1

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

e1

“the net photosynthetic rate of the recent fully expanded leaf at mid-tillering stage was significantly higher in SRI than in CM under MT and TP”

✓ located verbatim in the source · abstract, characters 665–808 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI increased biomass accumulation before heading.

Treatment
SRIe1
Outcome
biomass accumulation before headinge1
Direction
increasede1

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

e1

“SRI increased biomass accumulation before heading and improved utilization of photosynthates in the grain-filling stage”

✓ located verbatim in the source · abstract, characters 851–970 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI improved utilization of photosynthates in the grain-filling stage.

Organ / stage
grain-filling stagee1
Treatment
SRIe1
Outcome
utilization of photosynthatese1
Direction
improvede1

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

e1

“SRI increased biomass accumulation before heading and improved utilization of photosynthates in the grain-filling stage”

✓ located verbatim in the source · abstract, characters 851–970 · show in text ↑
t0

“on Rice Yield”

✓ located verbatim in the source · title, characters 77–90 · show in text ↑

transplanting · quality: general · Oryza sativa (rice)Positive and negative results

23 papers: 20 positive, 3 negative or no effect

19 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

19 papers more in this group

See all 23 papers →

irrigation · physiology: photosynthesis · Oryza sativa (rice)Positive and negative results

40 papers: 34 positive, 6 negative or no effect

33 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. negative
  3. negative

36 papers more in this group

See all 40 papers →

irrigation · growth · Oryza sativa (rice)Positive and negative results

291 papers: 222 positive, 69 negative or no effect

221 papers in the same direction as this paper · 62 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

287 papers more in this group

See all 291 papers →

irrigation · yield · Oryza sativa (rice)Positive and negative results

1,171 papers: 906 positive, 265 negative or no effect

905 papers in the same direction as this paper · 201 in the opposite direction · 64 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

1,167 papers more in this group

See all 1,171 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.