Abstract
Tne effect of plant density on the growth of seedlings of Spiranthes sinensis Ames and Liparis nervosa Lindl. in symbiotic cultures with Rhizoctonia isolates, effective for these orchids, was investigated using an oat medium containing the decoction of 25g/l oat grains and 1% agar. In high plant densitis, the weigth of individual seedlings increased in proportion to the quantity of medium per plant, but the rate of fresh weight increase was lowered with a decrease in plant density. The point where maximum fresh weight per individual seedling was obtained, i.e. the threshold where the density effect disappeared, was at a very low plant density: 60ml/plant for S. sinensis and 30ml/ plant for L. nervosa. The dry weight of mycelia per culturing flask also increased wich a decrease of plant density. It is considered that the effect of plant density on the growth of seedlings is, with respect to the oat medium, mainly dependent on the amounts of nutrients in the medium. Competition among aerial parts did not take part in the effect.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
At high density, individual orchid seedling weight rose with medium quantity per plant.
- Taxon
- Spiranthes sinensis Ames
Spiranthes sinensist0 - Outcome
- weigth of individual seedlingse0
- Direction
- increasede0
- Setting
- medium per plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In high plant densitis, the weigth of individual seedlings increased in proportion to the quantity of medium per plant, but the rate of fresh weight increase was lowered with a decrease in plant density.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”
Claim · model-written summary
The rate of fresh weight increase fell as plant density decreased.
- Taxon
- Spiranthes sinensis AmesSpiranthes sinensist0
- Outcome
- rate of fresh weight increasee0
- Direction
- lowerede0
- Setting
- plant densitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In high plant densitis, the weigth of individual seedlings increased in proportion to the quantity of medium per plant, but the rate of fresh weight increase was lowered with a decrease in plant density.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”
Claim · model-written summary
Maximum individual fresh weight occurred at 60ml/plant for S. sinensis.
- Taxon
- Spiranthes sinensis AmesSpiranthes sinensist0
- Outcome
- maximum fresh weight per individual seedlinge0
- Direction
- maximume0
- Value
- 60ml/plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The point where maximum fresh weight per individual seedling was obtained, i.e. the threshold where the density effect disappeared, was at a very low plant density: 60ml/plant for S. sinensis and 30ml/ plant for L. nervosa.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”
Claim · model-written summary
Maximum individual fresh weight occurred at 30ml/ plant for L. nervosa.
- Taxon
- Liparis nervosa Lindl.
.jpg?width=60)
Liparis nervosat0 - Outcome
- maximum fresh weight per individual seedlinge0
- Direction
- maximume0
- Value
- 30ml/ plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The point where maximum fresh weight per individual seedling was obtained, i.e. the threshold where the density effect disappeared, was at a very low plant density: 60ml/plant for S. sinensis and 30ml/ plant for L. nervosa.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”
Claim · model-written summary
Mycelial dry weight per flask increased as plant density decreased.
- Taxon
- Spiranthes sinensis AmesSpiranthes sinensist0
- Outcome
- dry weight of mycelia per culturing flaske0
- Direction
- increasede0
- Setting
- plant densitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry weight of mycelia per culturing flask also increased wich a decrease of plant density.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”
Claim · model-written summary
The authors attribute the density effect on seedling growth mainly to nutrient amounts in the medium.
- Taxon
- Spiranthes sinensis AmesSpiranthes sinensist0
- Outcome
- growth of seedlingse0
- Qualifier
- amounts of nutrients in the mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is considered that the effect of plant density on the growth of seedlings is, with respect to the oat medium, mainly dependent on the amounts of nutrients in the medium.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”
Claim · model-written summary
The authors conclude that aerial-part competition did not contribute to the density effect.
- Taxon
- Spiranthes sinensis AmesSpiranthes sinensist0
- Outcome
- effecte0
- Qualifier
- Competition among aerial partse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Competition among aerial parts did not take part in the effect.”
t0“Spiranthes sinensis Ames and Liparis nervosa Lindl.”