Abstract
Chinese leymus, Leymus chinensis (Thin.), is a perennial grass that is widespread in the native grassland of Northeast of China, Mongolia and Eastern Russian. However, the cultivation of this species has been limited due to high level of seed dormancy. This study investigated the characteristics of seed germination of the species. The results showed that seed dormancy in this grass is evident. The duration of seed dormancy was about nine months. The maximal germinating rate was observed at forty-two month-old seeds. The dormancy time could prolong to more than four years. The seed dormancy is associated with geo-climate factors. There was a significant negative correlation between latitude and seed germination. The seed germination was positively correlated to mean of annual temperature, temperature in January, temperature in July and the annual precipitation. In contrast, the correlation between germination and longitude was not significant. The removal of the glumes that cover the seeds did not improve the seed germination, but eliminating endosperm tissue increased the germination. In most cases, GA3 treatment promoted the seed germination significantly. These results on the seed germination behavior of Chinese leymus provide new knowledge for seed management and for ecological reclamation of dune landscape.
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 10
Claim · model-written summary
Leymus chinensis seed dormancy was evident and lasted about nine months.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- seed dormancye0
- Value
- about nine monthse0
Verbatim
e0“The results showed that seed dormancy in this grass is evident. The duration of seed dormancy was about nine months.”
t0“Leymus chinensis”
Claim · model-written summary
Maximal germination occurred in forty-two month-old seeds.
- Taxon
- Leymus chinensisLeymus chinensist0
- Organ / stage
- forty-two month-old seedse0
- Outcome
- maximal germinating ratee0
Verbatim
e0“The maximal germinating rate was observed at forty-two month-old seeds.”
t0“Leymus chinensis”
Claim · model-written summary
Seed dormancy could persist more than four years.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- dormancy timee0
- Value
- more than four yearse0
Verbatim
e0“The dormancy time could prolong to more than four years.”
t0“Leymus chinensis”
Claim · model-written summary
Seed dormancy was associated with geo-climate factors.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- seed dormancye0
- Setting
- geo-climate factorse0
Not reportedDirection
Verbatim
e0“The seed dormancy is associated with geo-climate factors.”
t0“Leymus chinensis”
Claim · model-written summary
Latitude and seed germination were significantly negatively correlated.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- seed germinatione0
- Direction
- negativee0
- Setting
- latitudee0
Verbatim
e0“There was a significant negative correlation between latitude and seed germination.”
t0“Leymus chinensis”
Claim · model-written summary
Seed germination was positively correlated with annual and seasonal temperatures and annual precipitation.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- seed germinatione0
- Direction
- positivelye0
- Setting
- mean of annual temperature, temperature in January, temperature in July and the annual precipitatione0
Verbatim
e0“The seed germination was positively correlated to mean of annual temperature, temperature in January, temperature in July and the annual precipitation.”
t0“Leymus chinensis”
Claim · model-written summary
Longitude was not significantly correlated with germination.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- germinatione0
- Setting
- longitudee0
Not reportedDirection
Verbatim
e0“the correlation between germination and longitude was not significant.”
t0“Leymus chinensis”
Claim · model-written summary
Glume removal did not improve seed germination.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- removal of the glumese0
- Outcome
- seed germinatione0
- Direction
- did not improvee0
Not reportedComparator
Verbatim
e0“The removal of the glumes that cover the seeds did not improve the seed germination”
t0“Leymus chinensis”
Claim · model-written summary
Removing endosperm increased seed germination.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- eliminating endosperm tissuee0
- Outcome
- germinatione0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“eliminating endosperm tissue increased the germination.”
t0“Leymus chinensis”
Claim · model-written summary
GA3 treatment significantly promoted seed germination in most cases.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- GA3 treatmente0
- Outcome
- seed germinatione0
- Direction
- promotede0
Not reportedComparator
Verbatim
e0“In most cases, GA3 treatment promoted the seed germination significantly.”
t0“Leymus chinensis”
The same questions in other papers
Gibberellic acid · growth · Leymus chinensisResults agree
7 papers in the same direction as this paper
- positive
- positive
- 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.