Abstract
Abstract The effects of peat: vermiculite mixes on increased growth response of radish ( Raphanus sativus L. ‘Early Scarlet Globe’) induced by Trichoderma harzianum Rifai (isolate T-12) were investigated. Canadian sphagnum peat and vermiculite were mixed in various ratios to form 0-100% peat mixes. Four levels of T-12 amendment were added to these mixes—0%, 2%, 5%, and 10% (v/v) or 0%, 0.1%, 1%, and 10%. In general, increasing levels of T-12 amendment induced linear increases in radish dry weights after 4 and 5 weeks. Greatest increases were seen in mixes containing 20% peat or 80% peat. The smallest increases were observed when T. harzianum was added to 0% peat or 100% peat mixes. There was no effect on the population densities of T-12 after it was introduced into the mixes. No Pythium spp. or root disease were detected in the mixes, suggesting that T. harzianum , a biological control agent, can increase plant growth independent of any detectable root pathogens.
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Claims 6
Claim · model-written summary
Increasing T-12 amendment linearly increased radish dry weight after four and five weeks.
- Taxon
- radish
Raphanus sativuse0 - Treatment
- T-12 amendmente0
- Interactor
- T-12e0symbiont
- Outcome
- radish dry weightse0
- Direction
- increasese0
- Qualifier
- after 4 and 5 weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing levels of T-12 amendment induced linear increases in radish dry weights after 4 and 5 weeks”
Claim · model-written summary
Growth increases were greatest in 20% and 80% peat mixes.
- Taxon
- radishRaphanus sativust0
- Treatment
- 20% peat or 80% peate0
- Outcome
- increasese0
- Direction
- Greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greatest increases were seen in mixes containing 20% peat or 80% peat”
t0“Radish”
Claim · model-written summary
Growth increases with T. harzianum were smallest in 0% and 100% peat mixes.
- Taxon
- radishRaphanus sativust0
- Treatment
- T. harzianum was added to 0% peat or 100% peat mixese0
- Interactor
- T. harzianum
Trichoderma harzianume0symbiont - Outcome
- increasese0
- Direction
- smalleste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The smallest increases were observed when T. harzianum was added to 0% peat or 100% peat mixes”
t0“Radish”
Claim · model-written summary
T-12 population densities were unaffected after introduction into the mixes.
- Taxon
- radishRaphanus sativust0
- Interactor
- T-12e0symbiont
- Outcome
- population densities of T-12e0
- Direction
- no effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no effect on the population densities of T-12 after it was introduced into the mixes”
t0“Radish”
Claim · model-written summary
No Pythium species or root disease were detected in the mixes.
- Taxon
- radishRaphanus sativust0
- Outcome
- No Pythium spp. or root diseasee0
.jpg?width=60){kind=small}
PythiumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“No Pythium spp. or root disease were detected in the mixes”
t0“Radish”
Claim · model-written summary
The authors infer that Trichoderma can increase plant growth without detectable root pathogens.
- Taxon
- radishRaphanus sativust0
- Interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- plant growthe0
- Qualifier
- independent of any detectable root pathogense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. harzianum , a biological control agent, can increase plant growth independent of any detectable root pathogens”
t0“Radish”
The same questions in other papers
other · growth · Raphanus sativus (radish)Positive and negative results
20 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
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See all 23 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.