Abstract
1. Old peach soil was diluted by virgin soil from 100.5 to 105 times (for example, the soil dilut-ed to 10 times consists of 1 part of peach soil and 9 parts of virgin soil) and peach seedlings were planted in 6-inch pots containing those soils. As the result, the growth in original peach soil was inferior to the control (virgin soil), and the more diluted the soil, the more excellent the growth, and the maximum growth was in 103 times plot. But in the case the soil was more diluted than in this plot, the growth was gradually reduced, and approached to the growth level in virgin soil. 2. On pouring the peach leaf extracts diluted by water from 3 to 1000 times respectively (ori-ginal extract was prepared by immersing the fresh leaves in 10 times water for 24 hours), the peach seedling showed the minimum growth in original extract plot and the maximum in 100 times plot. 3. In sand culture, the ether extract of peach leaves (original extract was prepared by extracting 50g of fresh leaves with ether, and evaporating ether, then dissolving the residue with 50ml of nutrient solution) and its solutions diluted from 10 to 105 times by nutrient solution, were poured on peach seedlings respectively. As a result, the peach growth responses showed the same tendency as in the two tests stated above. The growth in 10 times plot was far inferior to the control (ether extract not supplied) and the growth in 104 and 105 times plot was superior. 4. Generally in these experiments, when peach seedlings were grown in old peach soil or in soil supplied with peach leaf extracts, the seedling growth showed depression, and on the contrary, showed promotion in more diluted plots. It seems that one of its causes is in the presence of some substances which are not nutrient.
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Claims 8
Claim · model-written summary
Peach seedling growth in original peach soil was inferior to virgin soil.
- Taxon
- peach
Prunus persicae0 - Treatment
- original peach soile0
- Outcome
- growthe0
- Direction
- inferiore0
- Comparator
- virgin soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth in original peach soil was inferior to the control (virgin soil)”
Claim · model-written summary
Dilution of old peach soil improved seedling growth, with maximum growth at the 103 times plot.
- Taxon
- peachPrunus persicat0
- Treatment
- more diluted the soile0
- Outcome
- growthe0
- Direction
- more excellente0
- Qualifier
- 103 times plote0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the more diluted the soil, the more excellent the growth, and the maximum growth was in 103 times plot”
t0“peach”
Claim · model-written summary
Further dilution beyond the 103 times plot gradually reduced growth toward virgin-soil growth.
- Taxon
- peachPrunus persicat0
- Treatment
- soil was more diluted than in this plote0
- Outcome
- growthe0
- Direction
- gradually reducede0
- Comparator
- virgin soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil was more diluted than in this plot, the growth was gradually reduced, and approached to the growth level in virgin soil”
t0“peach”
Claim · model-written summary
Original peach leaf water extract yielded minimum seedling growth.
- Taxon
- peachPrunus persicae0
- Treatment
- original extract plote0
- Outcome
- growthe0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the peach seedling showed the minimum growth in original extract plot”
Claim · model-written summary
A 100-times diluted peach leaf water extract yielded maximum seedling growth.
- Taxon
- peachPrunus persicae0
- Treatment
- 100 times plote0
- Outcome
- growthe0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the peach seedling showed the minimum growth in original extract plot and the maximum in 100 times plot”
Claim · model-written summary
In sand culture, peach leaf ether extract diluted 10 times markedly suppressed growth versus no extract.
- Taxon
- peachPrunus persicat0
- Treatment
- 10 times plote0
- Outcome
- growthe0
- Direction
- far inferiore0
- Comparator
- ether extract not suppliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth in 10 times plot was far inferior to the control (ether extract not supplied)”
t0“peach”
Claim · model-written summary
In sand culture, 104- and 105-times diluted peach leaf ether extracts promoted growth versus no extract.
- Taxon
- peachPrunus persicat0
- Treatment
- 104 and 105 times plote0
- Outcome
- growthe0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth in 104 and 105 times plot was superior”
t0“peach”
Claim · model-written summary
The authors suggest nonnutrient substances as a possible cause of the growth responses.
- Taxon
- peachPrunus persicat0
- Outcome
- one of its causese0
- Qualifier
- presence of some substances which are not nutriente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It seems that one of its causes is in the presence of some substances which are not nutrient”
t0“peach”
The same questions in other papers
botanical · growth · Prunus persica (peach)Positive and negative results
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- positive
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- 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.