Paper · 2025 · Fundamental and applied agriculture

Bio-priming with Trichoderma viride and Pseudomonas fluorescens Improves Crop Performance in Nepalese Rice Landraces

Shishir Dahal; nityananda Khanal; bijaya Dangi; et al.

11
claims
22
verbatim quotes
0
citations
3
research areas
✓
Open access · cc-by-nc

Abstract

This study evaluated agronomic responses of indigenous rice landraces to seedling-mediated microbial biopriming in an inner-Terai agroecosystem of western Nepal. A triply replicated experiment in split-plot design comprised four main plots of microorganism treatments – pre-transplant root-dipping of seedlings with individual and combined inoculums of Trichoderma viride Pers. ex S.F. Gray and Pseudomonas flouresens Migula and unprimed control, and three subplots of rice landraces - Anadi, Simtharo and Tilki. Simtharo bioprimed with the duel microbial culture exhibited highest grain yield. Anadi and Tilki showed greater response to sole T. viride biopriming with 39% and 111% increase in seed yields respectively compared to their corresponding controls. The sole biopriming with P. fluorescens did not produce clear effect on growth and yield of any rice landraces. Simtharo, Anadi and Tilki with increasing maturity days, had mean grain yield of 2.68 t ha-1, 2.14 t ha-1 and Tilki 0.77 t ha-1 respectively. Later maturity was linked to higher grain sterility with strong negative correlation with grain yield (r = - 0.93, p < 0.01). Further studies should integrate the use of rice landraces of similar maturity class for comparative studies, and utilization of locally isolated microbial strains under organic direct seeding or system of rice intensification (SRI) in cropping systems approach.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Simtharo bioprimed with the dual microbial culture had the highest grain yield.

Taxon
Rice Landracest0
Material
Simtharoe1
Treatment
bioprimed with the duel microbial culturee1
Interactor
Trichoderma virideTrichoderma viridee0symbiont
Second interactor
Pseudomonas flouresense0symbiont
Outcome
grain yielde1
Direction
higheste1

Not reportedComparator

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

Trichoderma viride
Trichoderma viride · InteractorKatja Schulz · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e0

“pre-transplant root-dipping of seedlings with individual and combined inoculums of Trichoderma viride Pers. ex S.F. Gray and Pseudomonas flouresens Migula and unprimed control”

✓ located verbatim in the source · abstract, characters 270–445 · show in text ↑
e1

“Simtharo bioprimed with the duel microbial culture exhibited highest grain yield”

✓ located verbatim in the source · abstract, characters 513–593 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anadi showed a 39% increase in seed yield after sole Trichoderma viride biopriming, compared with its control.

Taxon
Rice Landracest0
Material
Anadie2
Treatment
sole T. viride biopriminge2
Interactor
T. virideTrichoderma viridee2symbiont
Outcome
seed yieldse2
Direction
increasee2
Value
39%e2
Comparator
corresponding controlse2

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

Trichoderma viride
Trichoderma viride · InteractorKatja Schulz · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e2

“Anadi and Tilki showed greater response to sole T. viride biopriming with 39% and 111% increase in seed yields respectively compared to their corresponding controls”

✓ located verbatim in the source · abstract, characters 595–759 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tilki showed a 111% increase in seed yield after sole Trichoderma viride biopriming, compared with its control.

Taxon
Rice Landracest0
Material
Tilkie2
Treatment
sole T. viride biopriminge2
Interactor
T. virideTrichoderma viridee2symbiont
Outcome
seed yieldse2
Direction
increasee2
Value
111%e2
Comparator
corresponding controlse2

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

Trichoderma viride
Trichoderma viride · InteractorKatja Schulz · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e2

“Anadi and Tilki showed greater response to sole T. viride biopriming with 39% and 111% increase in seed yields respectively compared to their corresponding controls”

✓ located verbatim in the source · abstract, characters 595–759 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sole Pseudomonas fluorescens biopriming had no clear effect on growth and yield of any rice landrace.

Taxon
Rice Landracest0
Treatment
sole biopriming with P. fluorescense3
Interactor
P. fluorescensPseudomonas fluorescense3symbiont
Outcome
growth and yielde3
Direction
no_changeinferrede3

Not reportedComparator

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

Pseudomonas fluorescens
Pseudomonas fluorescens · InteractorNinjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e3

“The sole biopriming with P. fluorescens did not produce clear effect on growth and yield of any rice landraces”

✓ located verbatim in the source · abstract, characters 761–871 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Simtharo had a mean grain yield of 2.68 t/ha with increasing maturity days.

Taxon
Rice Landracest0
Material
Simtharoe4
Outcome
mean grain yielde4
Value
2.68 t ha-1e4
Qualifier
increasing maturity dayse4

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e4

“Simtharo, Anadi and Tilki with increasing maturity days, had mean grain yield of 2.68 t ha-1, 2.14 t ha-1 and Tilki 0.77 t ha-1 respectively”

✓ located verbatim in the source · abstract, characters 873–1013 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Anadi had a mean grain yield of 2.14 t/ha with increasing maturity days.

Taxon
Rice Landracest0
Material
Anadie4
Outcome
mean grain yielde4
Value
2.14 t ha-1e4
Qualifier
increasing maturity dayse4

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e4

“Simtharo, Anadi and Tilki with increasing maturity days, had mean grain yield of 2.68 t ha-1, 2.14 t ha-1 and Tilki 0.77 t ha-1 respectively”

✓ located verbatim in the source · abstract, characters 873–1013 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tilki had a mean grain yield of 0.77 t/ha with increasing maturity days.

Taxon
Rice Landracest0
Material
Tilkie4
Outcome
mean grain yielde4
Value
0.77 t ha-1e4
Qualifier
increasing maturity dayse4

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e4

“Simtharo, Anadi and Tilki with increasing maturity days, had mean grain yield of 2.68 t ha-1, 2.14 t ha-1 and Tilki 0.77 t ha-1 respectively”

✓ located verbatim in the source · abstract, characters 873–1013 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Later maturity was linked to higher grain sterility in rice landraces.

Taxon
Rice Landracest0
Treatment
Later maturitye5
Outcome
grain sterilitye5
Direction
highere5

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e5

“Later maturity was linked to higher grain sterility with strong negative correlation with grain yield (r = - 0.93, p < 0.01)”

✓ located verbatim in the source · abstract, characters 1015–1139 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Grain sterility had a strong negative correlation with grain yield (r = -0.93).

Taxon
Rice Landracest0
Organ / stage
graine5
Outcome
grain yielde5
Direction
negativee5
Value
r = - 0.93e5

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e5

“Later maturity was linked to higher grain sterility with strong negative correlation with grain yield (r = - 0.93, p < 0.01)”

✓ located verbatim in the source · abstract, characters 1015–1139 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Further studies should use rice landraces of similar maturity class in comparative studies.

Taxon
rice landracese6
Outcome
use of rice landraces of similar maturity classe6

Verbatim

e6

“Further studies should integrate the use of rice landraces of similar maturity class for comparative studies”

✓ located verbatim in the source · abstract, characters 1141–1249 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Locally isolated microbial strains should be used under organic direct seeding or system of rice intensification.

Taxon
Rice Landracest0
Outcome
utilization of locally isolated microbial strainse7

Verbatim

t0

“Improves Crop Performance in Nepalese Rice Landraces”

✓ located verbatim in the source · title, characters 64–116 · show in text ↑
e7

“utilization of locally isolated microbial strains under organic direct seeding or system of rice intensification (SRI) in cropping systems approach”

✓ located verbatim in the source · abstract, characters 1255–1402 · show in text ↑

Pseudomonas fluorescens · yield · Oryza sativa (rice)Results differ

31 papers: 30 positive, 1 negative or no effect

30 in the opposite direction

  1. positive
  2. positive
  3. positive

27 papers more in this group

See all 31 papers →

Trichoderma viride · yield · Oryza sativa (rice)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

4 papers more in this group

See all 8 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.