Paper · 2005 · HortScience

GROWTH OF ANNUAL PLANT SPECIES IN GROUND PROCESSED RICE HULL PRODUCTS

Heather Quinney; Michael R. Evans

7
claims
7
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Pepper ( Capsicum annuum ) and impatiens ( Impatiens walleriana ) plants were grown in substrates composed of 20% perlite and 20%, 40%, 60% or 80% of a coarse, medium or fine grind of fresh rice hulls with the remainder being Sphagnum peat. Impatiens grown in substrates containing 40% of a coarse, medium or fine and 80% of a fine grind of rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat. Only impatiens grown in a root substrate containing 40% of the coarse grind of fresh rice hulls had lower root dry weight than those grown in substrates containing 80% peat. Peppers grown in a substrate containing 60% and 80% of a coarse, 60% of a medium or 60% and 80% of a fine grind of fresh rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat. There were no significant differences in pepper root dry weights among the substrates. Impatiens and pepper plants grown in a substrate containing 80% of the fine grind of fresh rice hulls were similar to those grown in 80% peat, and therefore, the fine grind of fresh rice hulls served as a suitable substitute for Sphagnum peat.

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Claims 7

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Impatiens shoot dry weight was similar with 40% rice hulls of coarse, medium, or fine grind and 80% peat.

Taxon
ImpatiensImpatiense0
Treatment
40% of a coarse, medium or finee0
Outcome
shoot dry weightse0
Direction
similare0
Comparator
80% peate0

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

Impatiens
Impatiens · Taxon · picture of the genus (one of its species)Cj.samson · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Impatiens grown in substrates containing 40% of a coarse, medium or fine and 80% of a fine grind of rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat”

✓ located verbatim in the source · abstract, characters 241–431 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Impatiens shoot dry weight was similar with 80% fine rice hulls and 80% peat.

Taxon
ImpatiensImpatiense0
Treatment
80% of a fine grind of rice hullse0
Outcome
shoot dry weightse0
Direction
similare0
Comparator
80% peate0

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

Impatiens
Impatiens · Taxon · picture of the genus (one of its species)Cj.samson · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Impatiens grown in substrates containing 40% of a coarse, medium or fine and 80% of a fine grind of rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat”

✓ located verbatim in the source · abstract, characters 241–431 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Impatiens root dry weight was lower under 40% coarse rice hulls than 80% peat.

Taxon
impatiensImpatiense0
Treatment
40% of the coarse grind of fresh rice hullse0
Outcome
root dry weighte0
Direction
lowere0
Comparator
80% peate0

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

Impatiens
Impatiens · Taxon · picture of the genus (one of its species)Cj.samson · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Only impatiens grown in a root substrate containing 40% of the coarse grind of fresh rice hulls had lower root dry weight than those grown in substrates containing 80% peat”

✓ located verbatim in the source · abstract, characters 433–605 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pepper shoot dry weight under 60% or 80% coarse rice hulls resembled 80% peat.

Taxon
PeppersCapsicume0
Treatment
60% and 80% of a coarsee0
Outcome
shoot dry weightse0
Direction
similare0
Comparator
80% peate0

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

Capsicum
Capsicum · Taxon · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Peppers grown in a substrate containing 60% and 80% of a coarse, 60% of a medium or 60% and 80% of a fine grind of fresh rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat”

✓ located verbatim in the source · abstract, characters 607–818 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pepper shoot dry weight under 60% medium rice hulls resembled 80% peat.

Taxon
PeppersCapsicume0
Treatment
60% of a mediume0
Outcome
shoot dry weightse0
Direction
similare0
Comparator
80% peate0

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

Capsicum
Capsicum · Taxon · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Peppers grown in a substrate containing 60% and 80% of a coarse, 60% of a medium or 60% and 80% of a fine grind of fresh rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat”

✓ located verbatim in the source · abstract, characters 607–818 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pepper shoot dry weight under 60% or 80% fine rice hulls resembled 80% peat.

Taxon
PeppersCapsicume0
Treatment
60% and 80% of a fine grind of fresh rice hullse0
Outcome
shoot dry weightse0
Direction
similare0
Comparator
80% peate0

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

Capsicum
Capsicum · Taxon · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Peppers grown in a substrate containing 60% and 80% of a coarse, 60% of a medium or 60% and 80% of a fine grind of fresh rice hulls had similar shoot dry weights as those grown in a substrate containing 80% peat”

✓ located verbatim in the source · abstract, characters 607–818 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Pepper root dry weight did not differ significantly among substrates.

Taxon
peppere0
Outcome
root dry weightse0
Direction
no significant differencese0

Verbatim

e0

“There were no significant differences in pepper root dry weights among the substrates”

✓ located verbatim in the source · abstract, characters 820–905 · show in text ↑

Oryza sativa · growth · Capsicum (peppers)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

6 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

3 papers more in this group

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in vitro · growth · ImpatiensPositive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative
See all 4 papers →

in vitro · growth · Capsicum (peppers)Positive and negative results

21 papers: 17 positive, 4 negative or no effect

3 papers in the same direction as this paper · 17 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

17 papers more in this group

See all 21 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.