Abstract
Two types of ground kenaf core (fresh and aged) were used in concentrations from 70% to 100% (v/v) in combination with peat for use as greenhouse potting media, and were compared to two commercial mixes in completely randomized-block designs. Greenhouse crops of Boston fern ( Nephrolepis ), Impatiens, and pansies ( Viola ) were grown in the different mixes. Irrigation was conducted regularly, based primarily on the average need of all the plants. Kenaf-based media did not retain water as well as the commercial mixes; consequently, impatiens and pansies displayed slower growth rates. However, no differences were noted for fern growth in 70% kenaf compared to commercial mixes. A second study on plants that were grouped by media type and watered as needed provided different results. Ferns grew equally well in all media, but Impatiens grew best in 70% fresh kenaf. Kenaf-based media were less costly than the commercial mixes, and the cost decreased steadily as the kenaf proportion increased. The lower cost of kenaf, coupled with the decreasing availability of peat, should make kenaf-based media an attractive alternative to conventional greenhouse potting media.
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Claims 8
Claim · model-written summary
Kenaf-based media retained less water than commercial mixes.
Not reportedTaxon
Verbatim
e0“Kenaf-based media did not retain water as well as the commercial mixes”
Claim · model-written summary
Impatiens grew more slowly in kenaf-based media under regular average-need irrigation.
ImpatiensOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“consequently, impatiens and pansies displayed slower growth rates.”
e1“Kenaf-based media did not retain water as well as the commercial mixes”
Claim · model-written summary
Pansies grew more slowly in kenaf-based media under regular average-need irrigation.
- Taxon
- pansies
Viola ×wittrockianae0 - Treatment
- Kenaf-based mediae1
- Outcome
- growth ratese0
- Direction
- slowere0
- Comparator
- commercial mixese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“consequently, impatiens and pansies displayed slower growth rates.”
e1“Kenaf-based media did not retain water as well as the commercial mixes”
Claim · model-written summary
Fern growth in 70% kenaf did not differ from commercial mixes.
Verbatim
e0“no differences were noted for fern growth in 70% kenaf compared to commercial mixes.”
Claim · model-written summary
With media-specific watering, ferns grew equally well in all media.
- Taxon
- FernsPolypodiopsidae0
- Outcome
- grew equally welle0
- Comparator
- all mediae0
Verbatim
e0“Ferns grew equally well in all media”
Claim · model-written summary
With media-specific watering, Impatiens grew best in 70% fresh kenaf.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impatiens grew best in 70% fresh kenaf.”
e1“Ferns grew equally well in all media”
Claim · model-written summary
Kenaf-based media cost less than commercial mixes, with cost falling as kenaf proportion rose.
Not reportedTaxon
Verbatim
e0“Kenaf-based media were less costly than the commercial mixes, and the cost decreased steadily as the kenaf proportion increased.”
Claim · model-written summary
Authors recommend kenaf-based media as an alternative to conventional greenhouse potting media.
- Outcome
- kenaf-based media an attractive alternative to conventional greenhouse potting mediae0
Not reportedTaxon
Verbatim
e0“should make kenaf-based media an attractive alternative to conventional greenhouse potting media.”
The same questions in other papers
in vitro · growth · ImpatiensPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.