Paper · 2001 · Zhongguo nongye Kexue

Effects of Deep Roots on Growth and Yield in Two Rice Varieties

Zhu De; Moa Key

19
claims
38
verbatim quotes
10
citations
2
research areas
—
Not open access

Abstract

Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box. As compared with check, cutting roots at 15cm soil depth at PI reduced panicle length of 65002 and Shanyou 63 by 2 7 and 2 4 cm, and grain number per panicle by 36 0% and 26 6%, respectively, whereas spikelet fertility was slightly influenced. Cutting roots at 30 cm soil depth at PI reduced grain number by 17 2% and 7 8%,and spikelet fertility by 11 7% and 5 8% respectively, whereas panicle length was slightly affected. Cutting roots at FL reduced spikelet fertility significantly, fertility of 65002 and Shanyou 63 decreased by 17 2% and 11 8% with 15 cm cutting and by 14 4% and 7 3% with 30 cm cutting. Yield reduction by root cutting was higher in larger panicle variety than in smaller panicle variety, and higher at panicle initiation than at flowering stage. Root cutting at PI markedly influenced chlorophyll content of third leaf. Root cutting at PI and FL also reduced photosynthetic rate of first leaf by 26 5% and 30 0% with 15 cm cutting, and by 18 0% and 12 0% with 30 cm cutting respectively.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 19

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at 15 cm at PI reduced panicle length of 65002 by 2.7 cm

Material
65002e1
Treatment
cutting roots at 15cm soil depth at PIe1
Outcome
panicle lengthe1
Direction
reducede1
Value
2 7e1
Comparator
checke1

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e1

“As compared with check, cutting roots at 15cm soil depth at PI reduced panicle length of 65002 and Shanyou 63 by 2 7 and 2 4 cm, and grain number per panicle by 36 0% and 26 6%, respectively, whereas spikelet fertility was slightly influenced”

✓ located verbatim in the source · abstract, characters 201–443 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at 15 cm at PI reduced panicle length of Shanyou 63 by 2.4 cm

Material
Shanyou 63e1
Treatment
cutting roots at 15cm soil depth at PIe1
Outcome
panicle lengthe1
Direction
reducede1
Value
2 4e1
Comparator
checke1

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e1

“As compared with check, cutting roots at 15cm soil depth at PI reduced panicle length of 65002 and Shanyou 63 by 2 7 and 2 4 cm, and grain number per panicle by 36 0% and 26 6%, respectively, whereas spikelet fertility was slightly influenced”

✓ located verbatim in the source · abstract, characters 201–443 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at 15 cm at PI reduced grain number per panicle of 65002 by 36.0%

Material
65002e1
Treatment
cutting roots at 15cm soil depth at PIe1
Outcome
grain number per paniclee1
Direction
reducede1
Value
36 0%e1
Comparator
checke1

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e1

“As compared with check, cutting roots at 15cm soil depth at PI reduced panicle length of 65002 and Shanyou 63 by 2 7 and 2 4 cm, and grain number per panicle by 36 0% and 26 6%, respectively, whereas spikelet fertility was slightly influenced”

✓ located verbatim in the source · abstract, characters 201–443 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at 15 cm at PI reduced grain number per panicle of Shanyou 63 by 26.6%

Material
Shanyou 63e1
Treatment
cutting roots at 15cm soil depth at PIe1
Outcome
grain number per paniclee1
Direction
reducede1
Value
26 6%e1
Comparator
checke1

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e1

“As compared with check, cutting roots at 15cm soil depth at PI reduced panicle length of 65002 and Shanyou 63 by 2 7 and 2 4 cm, and grain number per panicle by 36 0% and 26 6%, respectively, whereas spikelet fertility was slightly influenced”

✓ located verbatim in the source · abstract, characters 201–443 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at 30 cm at PI reduced grain number by 17.2% and 7.8%

Treatment
Cutting roots at 30 cm soil depth at PIe2
Outcome
grain numbere2
Direction
reducede2
Value
17 2% and 7 8%e2

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e2

“Cutting roots at 30 cm soil depth at PI reduced grain number by 17 2% and 7 8%,and spikelet fertility by 11 7% and 5 8% respectively, whereas panicle length was slightly affected”

✓ located verbatim in the source · abstract, characters 445–623 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at 30 cm at PI reduced spikelet fertility by 11.7% and 5.8%

Treatment
Cutting roots at 30 cm soil depth at PIe2
Outcome
spikelet fertilitye2
Direction
reducede2
Value
11 7% and 5 8%e2

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e2

“Cutting roots at 30 cm soil depth at PI reduced grain number by 17 2% and 7 8%,and spikelet fertility by 11 7% and 5 8% respectively, whereas panicle length was slightly affected”

✓ located verbatim in the source · abstract, characters 445–623 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cutting roots at 15 cm at PI had only a slight influence on spikelet fertility

Treatment
cutting roots at 15cm soil depth at PIe1
Outcome
spikelet fertilitye1
Qualifier
slightly influencede1
Comparator
checke1

Not reportedDirection

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e1

“As compared with check, cutting roots at 15cm soil depth at PI reduced panicle length of 65002 and Shanyou 63 by 2 7 and 2 4 cm, and grain number per panicle by 36 0% and 26 6%, respectively, whereas spikelet fertility was slightly influenced”

✓ located verbatim in the source · abstract, characters 201–443 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cutting roots at flowering reduced spikelet fertility of 65002 by 17.2% with 15 cm cutting

Material
65002e3
Treatment
Cutting roots at FLe3
Outcome
spikelet fertilitye3
Direction
decreasede3
Value
17 2%e3
Qualifier
with 15 cm cuttinge3

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e3

“Cutting roots at FL reduced spikelet fertility significantly, fertility of 65002 and Shanyou 63 decreased by 17 2% and 11 8% with 15 cm cutting and by 14 4% and 7 3% with 30 cm cutting”

✓ located verbatim in the source · abstract, characters 625–809 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cutting roots at flowering reduced spikelet fertility of Shanyou 63 by 11.8% with 15 cm cutting

Material
Shanyou 63e3
Treatment
Cutting roots at FLe3
Outcome
spikelet fertilitye3
Direction
decreasede3
Value
11 8%e3
Qualifier
with 15 cm cuttinge3

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e3

“Cutting roots at FL reduced spikelet fertility significantly, fertility of 65002 and Shanyou 63 decreased by 17 2% and 11 8% with 15 cm cutting and by 14 4% and 7 3% with 30 cm cutting”

✓ located verbatim in the source · abstract, characters 625–809 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cutting roots at flowering reduced spikelet fertility of 65002 by 14.4% with 30 cm cutting

Material
65002e3
Treatment
Cutting roots at FLe3
Outcome
spikelet fertilitye3
Direction
decreasede3
Value
14 4%e3
Qualifier
with 30 cm cuttinge3

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e3

“Cutting roots at FL reduced spikelet fertility significantly, fertility of 65002 and Shanyou 63 decreased by 17 2% and 11 8% with 15 cm cutting and by 14 4% and 7 3% with 30 cm cutting”

✓ located verbatim in the source · abstract, characters 625–809 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cutting roots at flowering reduced spikelet fertility of Shanyou 63 by 7.3% with 30 cm cutting

Material
Shanyou 63e3
Treatment
Cutting roots at FLe3
Outcome
spikelet fertilitye3
Direction
decreasede3
Value
7 3%e3
Qualifier
with 30 cm cuttinge3

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e3

“Cutting roots at FL reduced spikelet fertility significantly, fertility of 65002 and Shanyou 63 decreased by 17 2% and 11 8% with 15 cm cutting and by 14 4% and 7 3% with 30 cm cutting”

✓ located verbatim in the source · abstract, characters 625–809 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at PI reduced photosynthetic rate of first leaf by 26.5% with 15 cm cutting

Treatment
Root cutting at PIe6
Outcome
photosynthetic rate of first leafe6
Direction
reducede6
Value
26 5%e6
Qualifier
with 15 cm cuttinge6

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e6

“Root cutting at PI and FL also reduced photosynthetic rate of first leaf by 26 5% and 30 0% with 15 cm cutting, and by 18 0% and 12 0% with 30 cm cutting respectively”

✓ located verbatim in the source · abstract, characters 1045–1211 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at flowering reduced photosynthetic rate of first leaf by 30.0% with 15 cm cutting

Treatment
Root cutting at PI and FLe6
Outcome
photosynthetic rate of first leafe6
Direction
reducede6
Value
30 0%e6
Qualifier
with 15 cm cuttinge6

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e6

“Root cutting at PI and FL also reduced photosynthetic rate of first leaf by 26 5% and 30 0% with 15 cm cutting, and by 18 0% and 12 0% with 30 cm cutting respectively”

✓ located verbatim in the source · abstract, characters 1045–1211 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at PI reduced photosynthetic rate of first leaf by 18.0% with 30 cm cutting

Treatment
Root cutting at PIe6
Outcome
photosynthetic rate of first leafe6
Direction
reducede6
Value
18 0%e6
Qualifier
with 30 cm cuttinge6

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e6

“Root cutting at PI and FL also reduced photosynthetic rate of first leaf by 26 5% and 30 0% with 15 cm cutting, and by 18 0% and 12 0% with 30 cm cutting respectively”

✓ located verbatim in the source · abstract, characters 1045–1211 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cutting roots at flowering reduced photosynthetic rate of first leaf by 12.0% with 30 cm cutting

Treatment
Root cutting at PI and FLe6
Outcome
photosynthetic rate of first leafe6
Direction
reducede6
Value
12 0%e6
Qualifier
with 30 cm cuttinge6

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e6

“Root cutting at PI and FL also reduced photosynthetic rate of first leaf by 26 5% and 30 0% with 15 cm cutting, and by 18 0% and 12 0% with 30 cm cutting respectively”

✓ located verbatim in the source · abstract, characters 1045–1211 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield reduction by root cutting was higher in the larger panicle variety than in the smaller panicle variety

Material
larger panicle varietye4
Outcome
Yield reduction by root cuttinge4
Direction
highere4
Comparator
smaller panicle varietye4

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e4

“Yield reduction by root cutting was higher in larger panicle variety than in smaller panicle variety, and higher at panicle initiation than at flowering stage”

✓ located verbatim in the source · abstract, characters 811–969 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield reduction by root cutting was higher at panicle initiation than at flowering stage

Treatment
panicle initiatione4
Outcome
Yield reduction by root cuttinge4
Direction
highere4
Comparator
flowering stagee4

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e4

“Yield reduction by root cutting was higher in larger panicle variety than in smaller panicle variety, and higher at panicle initiation than at flowering stage”

✓ located verbatim in the source · abstract, characters 811–969 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Root cutting at PI markedly influenced chlorophyll content of the third leaf

Treatment
Root cutting at PIe5
Outcome
chlorophyll content of third leafe5
Qualifier
markedly influencede5

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e5

“Root cutting at PI markedly influenced chlorophyll content of third leaf”

✓ located verbatim in the source · abstract, characters 971–1043 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cutting roots at 30 cm at PI slightly affected panicle length

Treatment
Cutting roots at 30 cm soil depth at PIe2
Outcome
panicle lengthe2
Qualifier
slightly affectede2

Not reportedComparatorDirection

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

e0

“Effects of roots below 15cm and 30cm in soil on rice growth and yield in hybrids of 65002 and Shanyou 63 were studied by cutting roots at panicle initiation (PI) and flowering (FL) stages in root box”

✓ located verbatim in the source · abstract, characters 0–199 · show in text ↑
e2

“Cutting roots at 30 cm soil depth at PI reduced grain number by 17 2% and 7 8%,and spikelet fertility by 11 7% and 5 8% respectively, whereas panicle length was slightly affected”

✓ located verbatim in the source · abstract, characters 445–623 · show in text ↑

pruning · yield · Oryza sativa (rice)Results differ

61 papers: 29 positive, 32 negative or no effect

31 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

57 papers more in this group

See all 61 papers →

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

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. negative
See all 4 papers →

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

6 papers: 3 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

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

12 papers: 9 positive, 3 negative or no effect

2 papers in the same direction as this paper · 9 in the opposite direction

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

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

124 papers: 88 positive, 36 negative or no effect

35 papers in the same direction as this paper · 88 in the opposite direction

  1. positive
  2. positive
  3. positive

120 papers more in this group

See all 124 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.