Abstract
BACKGROUND: Using proper growing medium is known to be an effective way to improve crop growth and yield. However, the effects of growing media on geranium essential oil have scarcely ever been examined in detail. In this research, the effects of different growing media (soil, sand, pumice, perlite and perlite + cocopeat) on growth, oil yield and composition of geranium were studied. RESULTS: Growth was significantly improved in soilless-grown plants compared with soil-grown plants. Oil yield of soilless-grown plants (except for pumice) was about threefold higher than that of soil-grown plants. The increase in oil yield was correlated with higher leaf dry weight (r² = 0.96), as oil content was not affected. The citronellol/geranium ratio of oil was clearly affected by growing media, ranging from 5:1 in soil culture to 3:1 in soilless culture. The latter is acceptable for perfumery. CONCLUSION: Compared with soil, soilless media could produce higher yields of high-quality geranium oil that fits market requirements. Growth, oil yield and composition of plants grown in sand (a cheap and abundant growing medium) were not significantly different from those of plants grown in perlite and perlite + cocopeat.
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Claims 6
Claim · model-written summary
Soilless media significantly improved geranium growth relative to soil.
GeraniumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth was significantly improved in soilless-grown plants compared with soil-grown plants.”
t0“geranium”
Claim · model-written summary
Soilless media other than pumice yielded about three times as much oil as soil.
- Treatment
- soilless-grown plantse0
- Outcome
- Oil yielde0
- Direction
- highere0
- Value
- about threefolde0
- Qualifier
- except for pumicee0
- Comparator
- soil-grown plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil yield of soilless-grown plants (except for pumice) was about threefold higher than that of soil-grown plants.”
t0“geranium”
Claim · model-written summary
Oil yield was correlated with leaf dry weight.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in oil yield was correlated with higher leaf dry weight (r² = 0.96)”
t0“geranium”
Claim · model-written summary
Oil content was unaffected by growing media.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil content was not affected.”
t0“geranium (Pelargonium graveolens L.) as affected by growing media”
Claim · model-written summary
Growing media altered the citronellol/geranium ratio from 5:1 in soil to 3:1 in soilless culture.
- Treatment
- soilless culturee0
- Outcome
- citronellol/geranium ratio of oile0
- Direction
- affectede0
- Value
- 3:1e0
- Qualifier
- 5:1e0
- Comparator
- soil culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The citronellol/geranium ratio of oil was clearly affected by growing media, ranging from 5:1 in soil culture to 3:1 in soilless culture.”
t0“geranium”
Claim · model-written summary
Growth in sand did not differ significantly from perlite and perlite plus cocopeat.
- Treatment
- sande0
- Outcome
- Growth, oil yield and compositione0
- Direction
- not significantly differente0
- Comparator
- perlite and perlite + cocopeate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth, oil yield and composition of plants grown in sand (a cheap and abundant growing medium) were not significantly different from those of plants grown in perlite and perlite + cocopeat.”
t0“geranium”
The same questions in other papers
growing medium · growth · GeraniumPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.